CDM-Qx Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Installation and Operation Manual (Includes data for the CDM-Qx and CDM-QxL Configurations) For Firmware Versions 1.6.6/2.1.5 or higher (see New in this Release – Section 1.4) IMPORTANT NOTE: The information contained in this document supersedes all previously published information regarding these products. Product specifications are subject to change without prior notice. Part Number MN/CDMQX.
CDM-Qx Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Installation and Operation Manual (Includes data for the CDM-Qx and CDM-QxL Configurations) For Firmware Versions 1.6.6/2.1.5 or higher (see New in this Release – Section 1.4) Part Number MN/CDMQx.IOM Revision 6 December 17, 2009 Copyright © Comtech EF Data, 2009. All rights reserved. Printed in the USA. Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: 480.333.
This page is intentionally blank.
Table of Contents TABLE OF CONTENTS................................................................................................. III TABLES ........................................................................................................................XII FIGURES ......................................................................................................................XII PREFACE ..........................................................................................................
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Table of Contents Revision 7 MN/CDMQX.IOM 1.3.3 Major Assemblies ....................................................................................................... 1–5 1.3.4 Dimensional Envelope ................................................................................................ 1–6 1.3.5 Physical Features ........................................................................................................
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Table of Contents 3.1 Revision 7 MN/CDMQX.IOM Connector Overview ..................................................................................................... 3–1 3.2 Base Chassis Connections............................................................................................. 3–4 3.2.1 Power Connector .........................................................................................................
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Table of Contents Revision 7 MN/CDMQX.IOM 5.4 (MAIN MENU:) Config (Configuration) .................................................................... 5–9 5.4.1 CONFIG: Remote ..................................................................................................... 5–10 5.4.1.1 CONFIG: Remote Æ Local .............................................................................. 5–10 5.4.1.2 CONFIG: Remote Æ Serial ..
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Table of Contents Revision 7 MN/CDMQX.IOM 5.4.8.2 CONFIG: Mask Æ Receive .............................................................................. 5–38 5.4.8.3 CONFIG: Mask Æ Reference........................................................................... 5–39 5.4.8.4 CONFIG: Mask Æ BUC (CDM-QxL only) ..................................................... 5–39 5.4.8.5 CONFIG: Mask Æ BUC (CDM-QxL only) ...................
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Table of Contents 5.7.8 5.7.9 Revision 7 MN/CDMQX.IOM INFO: Ref ................................................................................................................. 5–57 INFO: ID ................................................................................................................... 5–57 5.8 (MAIN MENU:) Save/Load .......................................................................................
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Table of Contents Revision 7 MN/CDMQX.IOM 6.5.4.3 Config Mdm (Configure Modem) Pages .......................................................... 6–14 6.5.4.3.1 Config Mdm | Quick View .......................................................................... 6–14 6.5.4.3.1.1 Config Mdm | Quick View | Config Pages........................................... 6–16 6.5.4.3.1.2 Config Mdm | Quick View | Status Pages ...................
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Table of Contents Revision 7 MN/CDMQX.IOM 9.1 What is DoubleTalk Carrier-in-Carrier? ................................................................... 9–1 9.2 Application Requirements............................................................................................ 9–1 9.3 System Functionality .................................................................................................... 9–2 9.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Table of Contents Revision 7 MN/CDMQX.IOM B.2.4 Enter FAST Codes ..................................................................................................B–5 B.2.4.1 Entering the Base Unit FAST CODE .................................................................B–5 B.2.4.2 Entering the Installed Module FAST CODE ......................................................B–6 B.2.4.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Table of Contents Revision 7 MN/CDMQX.IOM Tables Table 1-1. CDM-Qx/QxL Rear Panel Connectors – Base Chassis ............................................. 1–8 Table 1-2. FAST and FAST-accessible Hardware Options ...................................................... 1–12 Table 3-1. Rear Panel External Connections .............................................................................. 3–3 Table 3-2.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Table of Contents Revision 7 MN/CDMQX.IOM Figure 6-3. Home | Customer Support page............................................................................................ 6–10 Figure 6-4. Admin | Access page ............................................................................................................ 6–11 Figure 6-5. Admin | Remote page ..........................................................................
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Table of Contents This page is intentionally blank. xiv Revision 7 MN/CDMQX.
PREFACE About this Manual This manual provides installation and operation information for the Comtech EF Data CDM-Qx Multi-Channel Modem with DoubleTalk™ Carrier-in-Carrier®. This is a technical document intended for earth station engineers, technicians, and operators responsible for the operation and maintenance of the 70-140 MHz CDM-Qx and its L-Band counterpart, the CDM-QxL.
CDM-Qx Multi-Channel Satellite Modem with DoubleTalk Carrier-in-Carrier Preface Revision 7 MN/CDMQX.IOM Cautions and Warnings WARNING indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury. CAUTION indicates a hazardous situation that, if not avoided, may result in minor or moderate injury. CAUTION may also be used to indicate other unsafe practices or risks of property damage.
CDM-Qx Multi-Channel Satellite Modem with DoubleTalk Carrier-in-Carrier Preface Revision 7 MN/CDMQX.IOM AC Operation: The AC-powered CDM-Qx/QxL is fitted with two fuses – one each for line and neutral connections. These are contained within the body of the IEC power inlet connector, behind a small plastic flap. For the CDM-Qx: • For 115 and 230 VAC operation, use 2.0A, slow-blow 20mm fuses. For the CDM-QxL: • For 115 and 230 VAC operation, use T3.15A, slow-blow 20mm fuses.
CDM-Qx Multi-Channel Satellite Modem with DoubleTalk Carrier-in-Carrier Preface Revision 7 MN/CDMQX.IOM International Symbols Symbol Definition Symbol Definition ~ Alternating Current Protective Earth Fuse Chassis Ground CDM-Qx/QxL AC Modem Installation: The installation and connection to the line supply must be made in compliance to local or national wiring codes and regulations. The CDM-Qx/QxL is designed for connection to a power system that has separate ground, line and neutral conductors.
CDM-Qx Multi-Channel Satellite Modem with DoubleTalk Carrier-in-Carrier Preface Immunity: Revision 7 MN/CDMQX.IOM EN 50082 Part 1 - Generic immunity standard, Part 1: Domestic, commercial and light industrial environment.
CDM-Qx Multi-Channel Satellite Modem with DoubleTalk Carrier-in-Carrier Preface Revision 7 MN/CDMQX.IOM Warranty Policy Comtech EF Data products are warranted against defects in material and workmanship for a specific period from the date of shipment, and this period varies by product. In most cases, the warranty period is two years. During the warranty period, Comtech EF Data will, at its option, repair or replace products that prove to be defective.
CDM-Qx Multi-Channel Satellite Modem with DoubleTalk Carrier-in-Carrier Preface Revision 7 MN/CDMQX.IOM inability to use them either separate from or in combination with any other equipment or products. A fixed charge established for each product will be imposed for all equipment returned for warranty repair where Comtech EF Data Corporation cannot identify the cause of the reported failure.
CDM-Qx Multi-Channel Satellite Modem with DoubleTalk Carrier-in-Carrier Preface Revision 7 MN/CDMQX.IOM Customer Support Refer to p. xx in this Preface for information regarding this product’s Warranty Policy.
Chapter 1. INTRODUCTION 1.1 Overview The CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® is a modular multi-channel modem with redundancy contained in a single rack unit (1RU) chassis. The CDM-Qx/QxL offers flexibility, redundancy, integration, and performance with four slots configurable as modulators or demodulators. The CDM-Qx operates on the 70/140 MHz IF frequency, while the CDM-QxL (Figure 1-1) is the L-Band (950MHz – 1950MHz) version of the same modem.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction • • • • • • • • • • • • • • Revision 7 MN/CDMQx.IOM o Up to 1:3 modulator o Up to 1:3 demodulator EIA-422/-530, V.35, G.703 (T1/E1/E2) and HSSI Interfaces; 1 to 4 Ports of G.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction 1.2 Revision 7 MN/CDMQx.IOM Functional Description The CDM-Qx/QxL Multi-Channel Satellite Modem has two fundamentally different types of interface – IF and Data: • The Data interface can be a bi-directional path, which connects with the customer’s equipment (assumed to be the DTE) and the modem (assumed to be the DCE).
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction Revision 7 MN/CDMQx.IOM • A Demodulator card performs all of the signal processing functions of carrier search, cancellation, demodulation, Forward Error Correction, the de-framer, plesiochronous/ Doppler buffer and the receive interface circuits. • Terrestrial data interface cards can be on the modulator cards or demodulator cards.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction 1.3 1.3.1 Revision 7 MN/CDMQx.IOM Features Physical Description CDM-Qx/QxL Multi-Channel Satellite Modem is constructed as a 1RU-high rack-mounting chassis, which can be free-standing if desired. Rack handles at the front facilitate removal from and placement into a rack. 1.3.2 Compatibility The CDM-Qx/QxL is backwards compatible with a number of Comtech EF Data CDM, SDM, and SLM modems. 1.3.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction 1.3.4 Revision 7 MN/CDMQx.IOM Dimensional Envelope Figure 1-3. CDM-Qx/QxL Dimensional Envelope 1.3.5 Physical Features 1.3.5.1 Front Panel Figure 1-4. Front Panel View (CDM-Qx shown) Figure 1-4 shows the front panel of the CDM-Qx/QxL Open Network Satellite Modem.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction Revision 7 MN/CDMQx.IOM Note: As shown in Figure 1-4, units manufactured prior to June 2007 featured six individual keyswitches mounted behind a fully sealed membrane overlay. These six switches are identified (in Current Keypad [Earlier Keypad] format) as S [↑], T [↓], W [←], X [→], ENTER [ENT], and CLEAR [CLR]. • The VFD is an active display showing two lines of 40 characters each.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction Revision 7 MN/CDMQx.IOM Table 1-1. CDM-Qx/QxL Rear Panel Connectors – Base Chassis Connector Group Power (Sect. 3.2.1) Connector Name AC DC (optional, CDM-QxL only) Ground (Sect. 3.2.2) Utility (Sects. 3.2.3, 3.2.4, 3.2.6, 3.3.1) M&C 10/100 (Sect. 3.2.3) 485/232 (Sect 3.2.4) Ref (Sect 3.2.6) Alarms (not p/o base chassis – typical for each data interface) (Sect. 3.3.1) IF (Sect. 3.2.5) Connector Type See Sect.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction Revision 7 MN/CDMQx.IOM connectors at 50Ω impedance, or N-type female connectors at 50Ω impedance. This option also must be configured in the factory at the time of order. • 1.3.6.2 The fourth hardware option is the Quad E1 Data Interface Module. This gives the user 1 to 4 ports of E1, (each are D&I capable). These ports must use a synchronous E1 reference.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction Revision 7 MN/CDMQx.IOM To accomplish this, either the EDMAC or D&I++ or ESC++ framing types may be used, and the distant end modem constantly sends back information about the demodulator Eb/No using reserved bytes in the overhead structure. Using the Eb/No, the local modem adjusts its output power, and a closed-loop feedback system is created over the satellite link.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction Revision 7 MN/CDMQx.IOM 1.3.12 Fully Accessible System Topology (FAST) The CDM-Qx/QxL is extremely flexible and powerful, and incorporates a large number of optional features. In order to permit a lower initial cost, the modem may be purchased with only the desired features enabled.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction Revision 7 MN/CDMQx.IOM Table 1-2. FAST and FAST-accessible Hardware Options Modulator & Demodulator Options Low Rate Variable Mid-Rate Variable Full Rate Variable 8-PSK 16-QAM D&I++ DoubleTalk Carrier-in-Carrier Redundancy Capability Turbo Codec – high rate Option Installation Method Description and Comments Data rate 32 kbps to 5 Mbps Data rate 32 kbps to 10.0 Mbps Data rate 32 kbps to 20.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction Revision 7 MN/CDMQx.IOM On the CDM-QxL, when activated on the Tx-IF port, this link can communicate with an FSKcapable Block Upconverter (BUC) or, conversely, when activated on the Rx-IF port, a Low-Noise Block Downconverter (LNB). In this manner, the user may monitor, configure, and control the Transceiver, BUC or LNB via the modem’s front panel display and keypad, or by using the modem’s remote control interface.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction 1.5 1.5.1 Revision 7 MN/CDMQx.IOM Summary of Specifications Modulator Note: Features not in the initial product release are identified in parentheses. Modulation Symbol rate range Data rate range Operating modes See Table A-5 Up to 10 Msps (lower end is modulation and FEC rate dependant). Refer to Figure A-1.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 Revision 7 MN/CDMQx.IOM 1.10 1.20 0 -5 -10 1.30 1.40 1.50 Symbol Rate, Rs Comtech EF Data CDM-Qx Transmit Power Spectral Density, referred to symbol rate -15 -20 -25 -30 -35 Intelsat IESS 308/309 Limit -40 CDM-Qx Modulator typically < -50 dB, and guaranteed to be < -45 dB at offsets > 0.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction VITERBI BER performance (met in the presence of two adjacent carriers, each 7 dB higher than the desired carrier) VITERBI and RS 220,200 or 200,180 Outer Code BER (with two adjacent carriers, each 7 dB higher than the desired carrier) 8-PSK/TCM CODEC BER (with two adjacent carriers, each 7 dB higher than the desired carrier) TURBO PRODUCT CODEC Rate 1/2 QPSK Rate 21/44 BPSK Rate 5/16 BPSK BER (with two adjacent ca
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction TURBO PRODUCT CODEC Rate 7/8 QPSK Rate 7/8 8-PSK Rate 7/8 16-QAM BER (with two adjacent carriers, each 7 dB higher than the desired carrier) TURBO PRODUCT CODEC Rate 17/18 QPSK Rate 17/18 8-PSK BER (with two adjacent carriers, each 7 dB higher than the desired carrier) HIGHER-ORDER MODULATION AND CODING (with two adjacent carriers, each 7 dB higher than the desired carrier) Revision 7 MN/CDMQx.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction 1.5.3 Revision 7 MN/CDMQx.IOM Data Interfaces Note: Features not in the initial product release are identified in parentheses. EIA-530 Synchronous RS-232 EIA-530 (3 selectable modes) EIA-422/EIA-530 DCE (Rates up to 12 Mbps) Also supports X.21(Rates up to 2.048 Mbps) V.35 DCE (Rates up to 12 Mbps) Synchronous RS-232 (Rates up to 300 kbps) G.703 (Balanced) 1.544 Mbps T1 (Balanced 100 Ω) 2.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction 1.5.5 Revision 7 MN/CDMQx.IOM Data Rate Ranges FEC Type Modulation Code Rate Data Rate Range Viterbi BPSK Rate 1/2 32 kbps to 5 Mbps Viterbi QPSK Rate 1/2 32 kbps to 10 Mbps Viterbi QPSK Rate 3/4 32 kbps to 15 Mbps Viterbi QPSK Rate 7/8 32 kbps to 17.5 Mbps Viterbi + R-S BPSK Rate 1/2 32 kbps to 4.5 Mbps Viterbi + R-S QPSK Rate 1/2 32 kbps to 9.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Introduction 1.5.7 Revision 7 MN/CDMQx.
Chapter 2. INSTALLATION 2.1 Unpacking The CDM-Qx/QxL Satellite Modem and its Installation and Operation Manual are packaged and shipped in a pre-formed, reusable cardboard carton containing foam spacing for maximum shipping protection. CAUTION Do not use any cutting tool that extends more than 1” into the container and cause damage to the unit. Be sure to keep all shipping materials for the carrier's inspection.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Installation 2.2 Revision 7 MN/CDMQX.IOM Mounting If the CDM-Qx/QxL is to be mounted in a rack, ensure that there is adequate clearance for ventilation, particularly at the sides. In rack systems where there is high heat dissipation, forced air cooling must be provided by top or bottom mounted fans or blowers. Under no circumstance should the highest internal rack temperature be allowed to exceed 50°C (122°F). 2.2.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Installation Revision 7 MN/CDMQX.IOM Equipment Rack Rear Mounting Rail #10 Shoulder Screw Support Bracket #10 Flat Washer #10 Flat Washer #10 Bracket Bolt #10 Split Washer #10 Hex Nut Back of unit Figure 2-1.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Installation 2.2.2 Revision 7 MN/CDMQX.IOM Method B: Optional Bearingless Side-Railings Figure 2-2 depicts installation of the optional side-railings FP/SL0006, using standard shop tooling and customer-furnished standard shop hardware: Optional Side-railings FP/SL0006 Quantity 2 CEFD Part Number Description FP/SL0006 Bearingless Side-Railing Figure 2-2. Installation of Optional Side-Railings (FP/SL0006) 2.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Installation 2.4 Revision 7 MN/CDMQX.IOM Select Internal IF Loop Correct operation of the unit may be verified rapidly, without the need for externally connected equipment, provided that there is at least one modulator and one demodulator installed: 1. From the top-level menu, select CONFIG Æ GROUP Æ MODEM. IMPORTANT 2.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Installation Notes: 2–6 Revision 7 MN/CDMQX.
Chapter 3. REAR PANEL CONNECTORS 3.1 Connector Overview The CDM-Qx/QxL Multi-Channel Satellite Modem rear panel can be customized to meet user requirements. As per the three configuration examples shown here in Figure 3-1, optional data interface modules, used in tandem with the base chassis connectors, provide all necessary external connections between the modem and other equipment. Prime Power & Control Configuration #1 Slot 1 Slot 2 Slot 3 Slot 4 IF I/O Modem 1 with G.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Rear Panel Connectors Revision 7 MN/CDMQX.IOM On the next page, Table 3-1 summarizes the connectors provided on the rear panel for both the base chassis and the optional data interfaces, grouped according to service function. Note the following: 1. One interface per Modem (i.e. Modulator and Demodulator card combination) or one interface per Modulator card and Demodulator card are required if used independently. 2.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Rear Panel Connectors Revision 7 MN/CDMQX.IOM Table 3-1. Rear Panel External Connections Ref Des Name Conn Type Function Base Chassis: TYPICAL ALL CONFIGURATIONS (See Sect. 3.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Rear Panel Connectors 3.2 Revision 7 MN/CDMQX.IOM Base Chassis Connections 3.2.1 Power Connector For continued operator safety, always replace the fuses with the correct type and rating. IMPORTANT 3.2.1.1 AC Power Connector A standard, detachable, non-locking, 3-prong power cord (IEC plug) supplies the Alternating Current (AC) power to the modem.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Rear Panel Connectors 3.2.3 Revision 7 MN/CDMQX.IOM M&C 10/100BaseT Connector The M&C 10/100BaseT connector is an 8-pin RJ-45 10/100BaseT Ethernet port providing access to the modem’s management functions. A green LED lights to acknowledge data traffic. 3.2.4 485/232 Connector The 485/232 connector is a 9-pin 'D' type male (DB-9M). Access is provided to remote control ports of the modem, using both EIA-232 and EIA-485.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Rear Panel Connectors Revision 7 MN/CDMQX.IOM either 50Ω or 75Ω. Input level is 0 dBm minimum to +20 dBm maximum at either 1, 2, 5, 10, or 20 MHz. When external reference is enabled, the internal 10 MHz reference oscillator is phase locked to the external reference input by a 10Hz bandwidth PLL. If no activity is present at the external reference input, the modem will revert to the internal 10 MHz reference. 3.3 3.3.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Rear Panel Connectors 3.3.2 Revision 7 MN/CDMQX.IOM Balanced G.703 Connector Tx/Rx Connector The Balanced G.703 connection is a 15-pin ‘D’ type female (DB-15F) connector located on the rear mounting plate of the modulator or demodulator. If a Modulator and Demodulator are vertically grouped together as a modem, the data interface connector on the Demodulator switches to duplex.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Rear Panel Connectors 3.3.4 Revision 7 MN/CDMQX.IOM EIA-530 Data Interface Connector The Data connector is a 25-pin ‘D’ type female (DB-25F). This connector conforms to the RS-530 pinout, which allows for connection of different electrical standards, including EIA-422, V.35, and EIA-232.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Rear Panel Connectors 3.3.5 Revision 7 MN/CDMQX.IOM Quad E1 Data Interface Connectors The Quad E1 Data interface card allows the user to connect one to four different terrestrial E1 ports, with each port independently configurable for full E1 (framed or unframed E1 data), or fractional E1 (with D&I).
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Rear Panel Connectors 3.3.6 Revision 7 MN/CDMQX.IOM HSSI Interface and Connectors This data interface is a plug-in module that inserts into the rear of the CDM-Qx/QxL’s Modulators or Demodulators. It provides physical and electrical connection between the external terrestrial device and the internal circuitry of the modulator or demodulator.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Rear Panel Connectors 3.3.6.1 Revision 7 MN/CDMQX.IOM HSSI Interface Specifications Item Requirement Data Rate Range 32 to 20 Mbps Signals Supported ST, TT (or external) , SD, TA, CA, RT, RD, SG Connector DCE, 50-pin mini-D female per EIA-613 (HSSI) Electrical Per EIA-612 (10KH ECL compatible).
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Rear Panel Connectors 3.3.6.2 Revision 7 MN/CDMQX.
Chapter 4. FLASH UPGRADING 4.1 Flash Updating via Internet The CDM-Qx/QxL Open Network Satellite Modem eliminates the need for updating firmware by physically replacing EPROMs. Instead, the CDM-Qx/QxL uses ‘Flash memory’ technology internally. This makes software upgrading very simple, and updates can now be sent via the Internet (Figure 4-1), via E-mail, or on CD. This chapter outlines the complete upgrading process as follows: • New firmware can be downloaded via the Internet to an external PC.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Flash Upgrading 4.2 Revision 7 MN/CDMQX.IOM Ethernet FTP Upload Procedure 1. Identify the reflashable product, firmware number, and version for download. The current base modem M&C version can be viewed at the top level menu of the front panel display (press the CLEAR key several times to view). The firmware information can also be found within the SELECT: UTILÆ Firmware Æ Info Æ Image#1 or Image#2 menu trees.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Flash Upgrading f) Revision 7 MN/CDMQX.IOM Select the CDM-Qx & QxL product hyperlink g) Select the appropriate firmware hyperlink. About Firmware Numbers, File Versions, and Formats: The flashable files on the download server are organized by product prefix; firmware number (verify that the correct firmware number is known – see Step 1); revision letter, if applicable; and release version.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Flash Upgrading Revision 7 MN/CDMQX.IOM 7. Send a “ping” command to the modem to verify the connection and communication. First, determine the IP address of the modem remotely or using the front panel: • Remotely - use the <0/IPA? command • Front panel – Use the SELECT: CONFIG Æ Remote Æ Remote ÆEthernet menu. Then, using DOS to PING (and FTP): Click “Start” on the Windows toolbar, then select the “Run...” option.
Chapter 5. FRONT PANEL OPERATION 5.1 Front Panel Overview USB Port LED Indicators Keypad VFD Left-Hand Display Area VFD Right-Hand Display Area Figure 5-1. CDM-Qx/QxL – Front Panel View The user can fully control and monitor the operation of the CDM-Qx/QxL from the front panel using the keypad and display. Nested menus are used, which display all available options and prompt the user to carry out a required action.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.1.2 Revision 7 MN/CDMQX.IOM LED Indicators IMPORTANT In general, the Alarm relay state will reflect the state of the Front Panel LEDs. For example, if the Unit Status LED is red, the Unit Alarm relay will be active, etc. The one exception is the Transmit Traffic relay. This will only be activated if a Transmit Traffic Fault exists – it does not reflect the state of the Tx carrier.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.1.3 Revision 7 MN/CDMQX.IOM Keypad IMPORTANT The keypad has an auto-repeat feature. If a key is held down for more than 1 second, the key action will repeat, automatically, at the rate of 15 keystrokes per second. This is particularly useful when editing numeric fields, with many digits, such as frequency or data rate.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.1.4 Revision 7 MN/CDMQX.IOM Front Panel Vacuum Fluorescent Display (VFD) The CDM-Qx/QxL features a Vacuum Fluorescent Display (VFD). The VFD is an active display showing two lines of 40 characters each. It produces a blue light, the brightness of which can be controlled by the user.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM A plug-in device that includes an ‘F’ suffix indicates the presence of an unmasked failure: TX TXF RX | (right-hand display area) | (right-hand display area) In this example, the upper right transmitter has a fault, the details of which may be viewed using such menus as Monitor or Alarms. 5.1.4.1.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM 5.1.4.1.3 Spectrum Analyzer The built-in spectrum analyzer mode is available, accessible via remote control, front panel operation, or web browser. When it is active, the selected demod will not respond to specific Rx front panel settings, nor will it carry traffic. Marked with an ‘S’ suffix, it has it is own front panel menu controls under the Test menu.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM Table 5-1. Prinicpal Menu Tree Section 5.2 5.3 5.4 Title Opening Screen Main Menu Config Remarks 5.4.1 Config → Remote 5.4.2 Config → Tx 5.4.3 Config → Rx Select: FEC; Mod; Code; Data; Freq; On/Off; Pwr; Scram; Clk; Inv; Txα Select: FEC; Demod; Code; Data; Freq; Acq; Descram; Buf; Inv; Misc; CNC 5.4.4 Config → Group Select: Modem; Redundancy 5.4.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.3 Revision 7 MN/CDMQX.IOM MAIN MENU Screen MAIN MENU: Config Monitor Test Info Save/Load Utility Use the ◄ ► arrow keys to select from the choices shown on this top-level selection screen, then press ENTER. The following table identifies the menu branch, its content section in this chapter, and the functional description of each branch: Menu Branch Sect Description Config 5.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4 Revision 7 MN/CDMQX.IOM (MAIN MENU:) Config (Configuration) CONFIG: Remote Frame Interface Tx Rx Group Ref Mask ODU Use the ◄ ► arrow keys to select from the submenu choices shown, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.1 Revision 7 MN/CDMQX.IOM CONFIG: Remote Remote Control Entry: Local Serial Ethernet (◄ ►,ENT) Select Local, Serial, or Ethernet using the ◄ ► arrow keys, then press ENTER. 5.4.1.1 CONFIG: Remote Æ Local If CONFIG: Remote Æ Local is selected, remote control is disabled, although remote monitoring is still possible. 5.4.1.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM possible. Press ENTER when done. Note that the asynchronous character format is FIXED at 8-N-1: 8 data bits, 1 stop bit, no parity.) 5.4.1.3 CONFIG: Remote Æ Ethernet Ethernet Config: (◄ ►,ENT) Gateway Address MAC SNMP Select Gateway, Address, MAC, or SNMP using the ◄ ► arrow keys, then press ENTER. CONFIG: Remote Æ Ethernet Æ Gateway M&C Ethernet IP Gateway: 192.128.001.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM CONFIG: Remote Æ Ethernet Æ SNMP Æ Communities Æ Write Write Community: (◄ ► ▲ ▼,ENT) private Edit either the SNMP Read or Write Community string by first selecting the character to be edited using the ef arrow keys, then change the character to be edited by using the dc arrow keys. Only the first 20 characters on the bottom line are available.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.2 Revision 7 MN/CDMQX.IOM CONFIG: Tx (Transmit) Tx: FEC Mod Code Data Freq On/Off Pwr Scram Clk Inv Txα Select FEC, Mod, Code, Data, Freq, On/Off, Pwr, Scram, Clk, Inv, or Txα using the ◄ ► arrow keys, then press ENTER. The user will then be taken to a further submenu.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.2.1 Revision 7 MN/CDMQX.IOM CONFIG: Tx Æ FEC Tx FEC: Vit Vit+RS TCM+RS TPC (◄ ►,ENT) For the Transmit FEC type, select Vit, Vit+RS, TCM+RS, or TPC using the ◄ ► arrow keys, then press ENTER. All possible choices are presented at all times. If an option is not installed (either Hardware, or FAST) or not valid, the ◄ ► arrow keys will force the cursor to skip past the unavailable choice.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.2.3 Revision 7 MN/CDMQX.IOM CONFIG: Tx Æ Code Tx Code Rate: 5/16 21/44 1/2 2/3 3/4 7/8 17/18 (◄ ►) For the Transmit Code Rate, select 5/16, 21/44, 1/2, 2/3, 3/4, 7/8, or 17/18 using the ◄ ► arrow keys, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM Note the following: FEC Type Vit (Viterbi) Modulation Code Rate BPSK Rate 1/2 32 kbps to 5 Mbps Rate 1/2 Rate 3/4 Rate 7/8 Rate 1/2 Rate 1/2 Rate 3/4 Rate 7/8 Rate 3/4 Rate 7/8 32 kbps to 10 Mbps 32 kbps to 15 Mbps 32 kbps to 17.5 Mbps 32 kbps to 4.5 Mbps 32 kbps to 9.1 Mbps 32 kbps to 13.7 Mbps 32 kbps to 16 Mbps 349.1 kbps to 20 Mbps 407.3 kbps to 20 Mbps Rate 2/3 232.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.2.6 Revision 7 MN/CDMQX.IOM CONFIG: Tx Æ On/Off Tx Output State: On Off RxTxInhibit Common (◄ ►,ENT) For the Transmit On./Off Control (Output State), select On, Off, RxTxInhibit, or Common using the W X arrow keys, then press ENTER. When Rx-Tx Inhibit (RTI) is selected, it prevents the TX carrier from being transmitted until the demodulator is locked.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM Press either ENTER or CLEAR to return to the previous menu (with Manual selected). With Framed Mode properly configured, selecting AUPC results in display of the following submenu: Target-Eb/No Max-Range Alarm DemodUnlock (◄ ►,ENT) Select Target EbNo, Max-Range, Alarm, or DemodUnlock using the W X arrow keys, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.2.8 Revision 7 MN/CDMQX.IOM CONFIG: Tx Æ Scram Scrambling: Default-On IESS-315-On Off (◄ ►,ENT) To set the Transmit Scrambling mode, select Default-On, IESS-315-On, or Off using the ◄ ► arrow keys, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM 5.4.2.10 CONFIG: Tx Æ Inv Tx Inversion functions: Spectrum Data Clock (◄ ►,ENT) To set the Transmit Inversion Functions, select Spectrum, Data, or Clock using the ◄ ► arrow keys, then press ENTER. CONFIG: Tx Æ Inv Æ Spectrum Tx Spectral Inversion: Normal Inverted (◄ ►,ENT) Select Normal or Inverted using the ◄ ► arrow keys, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.3 Revision 7 MN/CDMQX.IOM CONFIG: Rx (Receive) Rx: FEC Demod Code Data Freq Acq Descram Buf Inv Misc CnC Select FEC, Demod, Code, Data, Freq, Acq, Descram, Buf, Inv, Misc, or CnC using the ◄ ► arrow keys, then press ENTER. The user will then be taken to a further submenu.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.3.1 Revision 7 MN/CDMQX.IOM CONFIG: Rx Æ FEC Rx FEC: Vit Vit+RS TCM+RS TPC (◄ ►,ENT) For the Transmit FEC type, select Vit, Vit+RS, TCM+RS, or TPC using the ◄ ► arrow keys, then press ENTER. All possible choices are presented at all times. If an option is not installed (either Hardware, or FAST) or not valid, the ◄ ► arrow keys will force the cursor to skip past the unavailable choice.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.3.3 Revision 7 MN/CDMQX.IOM CONFIG: Rx Æ Code Rx Code Rate: 5/16 21/44 1/2 2/3 3/4 7/8 17/18 (◄ ►) For the Receive Code Rate, select 5/16, 21/44, 1/2, 2/3, 3/4, 7/8, or 17/18 using the ◄ ► arrow keys, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM Note the following: FEC Type Vit (Viterbi) Modulation Code Rate BPSK Rate 1/2 32 kbps to 5 Mbps Rate 1/2 Rate 3/4 Rate 7/8 Rate 1/2 Rate 1/2 Rate 3/4 Rate 7/8 Rate 3/4 Rate 7/8 32 kbps to 10 Mbps 32 kbps to 15 Mbps 32 kbps to 17.5 Mbps 32 kbps to 4.5 Mbps 32 kbps to 9.1 Mbps 32 kbps to 13.7 Mbps 32 kbps to 16 Mbps 349.1 kbps to 20 Mbps 407.3 kbps to 20 Mbps Rate 2/3 232.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.3.6 Revision 7 MN/CDMQX.IOM CONFIG: Rx Æ Acq Demod Acquisition Range: +/- 32 kHz (▲ ▼ ENT) For the Receive Demodualtion Acquisition Range, the value entered here determines the amount of frequency uncertainty the demodulator will search over in order to find and lock to an incoming carrier.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.3.8 Revision 7 MN/CDMQX.IOM CONFIG: Rx Æ Buf Rx Buffer: Internal Rx-Sat Tx-Terr Ins External (◄ ►,ENT) To set the Receive Buffer Clock Source, select Internal, Rx-Sat, Tx-Terr, Ins, or External using the ◄ ► arrow keys. Press ENTER when done. Note: Tx-Terrestrial will only be selected if the modules are grouped as a modem.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.3.9 Revision 7 MN/CDMQX.IOM CONFIG: Rx Æ Inv Rx Inversion functions: Spectrum Data Clock (◄ ►,ENT) To set the Transmit Inversion Functions, select Spectrum, Data, or Clock using the ◄ ► arrow keys, then press ENTER. CONFIG: Rx Æ Inv Æ Spectrum Rx Spectral Inversion: Normal Inverted (◄ ►,ENT) Select Normal or Inverted using the ◄ ► arrow keys, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM 5.4.3.11 CONFIG: Rx Æ CnC (CARRIER-IN-CARRIER®) Carrier-in-Carrier (CnC): Mode FrqOffs SrchDelay ReAcq Select Mode, FrqOffs, SrchDelay, or ReAcq using the ◄ ► arrow keys, then press ENTER. The user will then be taken to a further submenu. Note the following: Mode (Mode of Operation) This submenu permits the user to select the mode of operation for the CnC.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM CONFIG: Rx Æ CnC Æ SrchDelay CnC Min/Max Delay (ms): Min=000 Max=290 (◄ ►,▲ ▼,ENT) To edit the CnC Min/Max Search Delay (in milliseconds), first select the digit to be edited using the ◄ ► arrow keys; then, edit the value of that digit by using the ST arrow keys. Press ENTER when done.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM CONFIG: Group Æ Redundancy Æ Config Config Redundancy None 1:1 1:2 1:3 (◄ ►,ENT) Select None, 1:1, 1:2, or 1:3 using the ◄ ► arrow keys, then press ENTER. CONFIG: Group Æ Redundancy Æ Config Æ 1:1 For 1:1 redundancy, modulators are required in the top two slots – Slot#1 and Slot #3, and demodulators in the bottom two slots – Slot#2 and Slot#4.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.5 Revision 7 MN/CDMQX.IOM CONFIG: Frame Framing requires a modulator/demodulator pair grouped into a modem (refer to the previous section, Sect. 5.4.4 CONFIG: Group, for details). Framing Mode: Unframed EDMAC EDMAC-2 D&I++ (◄ ►,ENT) Select Unframed, EDMAC, EDMAC-2, or D&I++ using the ◄ ► arrow keys, then press ENTER. 5.4.5.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM CONFIG: Frame Æ EDMAC, EDMAC-2 Æ AUPC+EDMAC Æ Master Distant-end Base Address 0240 (◄ ►,▲ ▼,ENT) To edit the address of the distant-end modem to which this unit will pass messages, first select the digit to be edited using the ◄ ► arrow keys, then edit the value of that digit by using the ST arrow keys. Press ENTER when done. The valid range of addresses is from 10 to 9990.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.6 Revision 7 MN/CDMQX.IOM CONFIG: Interface Interface: RS422 V.35 RS232 HSSI ASI G.703 QDI NONE The data interface for each module (modulator or demodulator) is auto-detected. If grouped as a modem, the operating data interface will be the one installed in the demod module – the data interface on the modulator is not required.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.6.3 Revision 7 MN/CDMQX.IOM CONFIG: Interface Æ G.703 G.703 Type: T1 E1-Balanced E1-Unbal E2-Unbal (◄ ►,ENT) Select T1, E1-Balanced, E1-Unbal , or E2-Unbal using the ◄ ► arrow keys, then press ENTER. Note the following: • If the data interface is G.703 Balanced, T1 and E1-Balanced are selectable. • If the data interface is G.703 Unbalanced, T1, E1-Unbal, and E2-Unbal are selectable.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.6.4 Revision 7 MN/CDMQX.IOM CONFIG: Interface Æ QDI QDI Tributary Ports 1 2 3 4 (◄ ►,ENT) Select 1, 2, 3, or 4 using the ◄ ► arrow keys, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM When X displays, as per this example, this means that there are more channels available beyond Channel 6. Use right arrow key X to view more, making sure that ENTER is pressed once the selection is made. CONFIG: Interface Æ QDI Æ 1, 2, 3, or 4 Æ LineCode Port#X Line Code: HDB3 AMI (◄ ► ENT) Select HDB3 or AMI using the W Xarrow keys, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.8 Revision 7 MN/CDMQX.IOM CONFIG: Mask Alarm Mask: Transmit Receive Reference BUC LNB (◄ ►,ENT) Select Transmit, Receive, Reference – and when applicable with an appropriately-equipped CDM-QxL L-Band unit – BUC or LNB the using the ◄ ► arrow keys, then press ENTER. 5.4.8.1 CONFIG: Mask Æ Transmit Tx Alarm Mask: Tx-FIFO G.703-BPV Tx-AIS (◄ ► ENT) Select Tx-FIFO, G.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.4.8.3 Revision 7 MN/CDMQX.IOM CONFIG: Mask Æ Reference Reference Alarm: Active Masked (◄ ► ENT) Select Active or Masked using the ◄ ► arrow keys, then press ENTER. If Active is selected, then a unit fault will be generated whenever: • an External Reference is selected; • there is no signal activity at the external reference port. If Masked is selected, no alarm will be generated. 5.4.8.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM Note the following: M&C-FSK If an FSK-capable BUC is employed, provides access to a further set of menus that define the FSK setup, and use it for M&C (Monitor & Control). DC-Pwr (DC POWER) If a BUC supply is installed, permits user to turn DC power ON or OFF. 10MHz Permits user to turn the 10MHz frequency reference for the BUC ON or OFF.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM CONFIG: ODU Æ BUC Æ10MHz BUC 10MHz Reference: On Off (◄ ►,ENT) Select the BUC 10MHz frequency reference as either On or Off using the ◄ ► arrow keys, then press ENTER. CONFIG: ODU Æ BUC Æ Alarm BUC Current Alarm: Upper Lower (◄ ►,ENT) Select Upper or Lower using the ◄ ► arrow keys, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM CONFIG: ODU Æ BUC Æ Mix BUC Frequency Mix: High-Side Low-Side (◄ ►,ENT) To define the sense of the frequency translation, select High-Side or Low-Side using the ◄ ► arrow keys, then press ENTER. 5.4.9.2 CONFIG: ODU Æ LNB LNB: DC-Voltage LO Mix 10MHz Alarm (◄ ►,ENT) Select M&C-FSK, DC-Pwr, 10MHz, Alarm, Delay, LO or Mix using the ◄ ► arrow keys, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM CONFIG: ODU Æ LNB Æ Alarm Æ Upper LNB Current Alarm Upper: Limit:1200mA (◄ ► ▲ ▼ ENT) To edit the LNB Current Alarm Upper limit, first select the digit to be edited using the ◄ ► arrow keys, then edit the value of that digit by using the ST arrow keys. Press ENTER when done. The valid range of current (in mA) is from 50 to 600.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.5 Revision 7 MN/CDMQX.IOM (MAIN MENU:) Monitor MONITOR: Alarms Rx-Params Event-Log Stats AUPC CnC ODU Select Alarms, Rx-Params, Event-Log, Stats, AUPC, CnC, or – with CDM-QxL L-Band units only – ODU, using the ◄ ► arrow keys, then press ENTER. 5.5.1 MONITOR: Alarms IMPORTANT The modem uses a system of Fault Prioritization. In each category of fault, only the highest priority fault is displayed.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.5.1.4 Revision 7 MN/CDMQX.IOM MONITOR: Alarms Æ ODU This feature is operable only for CDM-QxL L-Band units. IMPORTANT ODU Alarms: None (ENT) This read-only screen indicates if there are any ODU Alarms. If not, it displays ‘None’. Press ENTER to return to the previous menu. 5.5.2 MONITOR: Rx-Params EbNo=05.7dB BER=3.4E-9 UF=+11.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.5.3.1 Revision 7 MN/CDMQX.IOM MONITOR: Event-Log Æ View Log 023: 30/11/08 10:37:32 Fault - Demod Lock(3) (▲ ▼,ENT) In this example, the demodulator installed in Slot#3 is faulted on Nov. 30, 2008 at 10:37:32 with log number 23. IMPORTANT • In accordance with international convention, the date is shown on these screens in DAY-MONTH-YEAR format. • Up to 255 events may be displayed via this screen.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.5.4 Revision 7 MN/CDMQX.IOM MONITOR: Stats Link Statistics: View Clear-All Config (◄ ►,ENT) Select View, Clear-All, or Config using the ◄ ► arrow keys, then press ENTER. 5.5.4.1 MONITOR: Stats Æ View Sta198: 30/11/08 10:37:32 16.0, 16.0, 9.0, 9.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.5.4.2 Revision 7 MN/CDMQX.IOM MONITOR: Stats Æ Clear-All Clear All Stored Stats? No Yes (◄ ►,ENT) When selected, and in Local mode, the user is prompted to answer No to retain the stored link statistics, or Yes to clear the buffer of all stored link statistics. Select the choice using the ◄ ► arrow keys, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.5.6 Revision 7 MN/CDMQX.IOM MONITOR: CnC (Carrier-in-Carrier®) This read-only screen is operable only for a modulator/demodulator pair grouped as a ‘modem’.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.5.7 Revision 7 MN/CDMQX.IOM MONITOR: ODU These read-only screens are operable only for CDM-QxL L-Band units. IMPORTANT Outdoor Unit Monitor: BUC LNB (◄ ►,ENT) Select BUC or LNB, using the ◄ ► arrow keys, then press ENTER. MONITOR: ODU Æ BUC 5.5.7.1 BUC: DC=47.8V,3.2A T=38oC SW=1.1 PLL=Flt Pwr=02.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.6 Revision 7 MN/CDMQX.IOM (MAIN MENU:) Test TEST: Mode BIST (◄ ►,ENT) Spec-Analyzer Select Mode, BIST (Built-in System Test), or Spec-Analyzer using the ◄ ► arrow keys, then press ENTER. 5.6.1 TEST: Mode Mode: Norm IF2 Dig2 I/O2 RF2 Tx-CW Tx1-0 SSB-CW (◄ ►, ENT All test modes are available if grouped as a modem. However, in ungrouped cases – e.g.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM IF LOOPBACK I/O LOOPBACK Figure 5-3. Loopback 5.6.2 TEST: BIST BIST: BERT-Config BERT-Control BERT-Mon (◄ ►,ENT) Select BERT-Config, BERT-Mon, or BERT-Control using the ◄ ► arrow keys, then press ENTER. 5.6.2.1 TEST: BIST Æ BERT-Config BERT Config: Tx=ON Rx=ON Tx-Pat=2047 Rx-Pat=2047 If the selected slot is Tx, the Rx parameters are not selectable, and vice-versa.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.6.2.2 Revision 7 MN/CDMQX.IOM TEST: BIST Æ BERT-Mon BERT Monitor: Errs=0000253 BER=8.5E-07 If BERT monitor is turned ON, results are being displayed in bit errors and average BER. If it displays BER=SyncLoss that means there was a loss of pattern synchronization. If it displays BER=No Sync, that means pattern synchronization is not achieved. When the BERT monitor is sync, the BER displays a value (e.g.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM TEST: Spec-Analyzer Æ CenterFreq Spectrum Analyzer: (◄ ►,▲▼,ENT) Center Freq = 0070.0000 MHz The Center Frequency is similar to Rx Frequency in a regular demodulation function with a resolution of 100 Hz. To edit the Center Frequency value, first select the digit to be edited using the ◄ ► arrow keys, then edit the value of that digit by using the ST arrow keys.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.7.2 Revision 7 MN/CDMQX.IOM INFO: Tx Tx: 1140.000 05000.000 TUR 8P 17/18 S EXT -20.0 ON N ▲ ▼ This screen provides Transmit Configuation Information. Per this example, note the following: • Top Line • Bottom Line • • • • • • • 1140.000 05000.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.7.3 Revision 7 MN/CDMQX.IOM INFO: Rx Rx: 1140.000 05000.000 TUR 8P 17/18 D RX BUF +/-32k N ▲▼ This screen provides Receive Configuation Information. Per this example, note the following: • Top Line Bottom Line • • • • • • • • 1140.000 05000.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.7.5 Revision 7 MN/CDMQX.IOM INFO: Frame This screen provides Framing and EDMAC Information. It shows the assigned EDMAC mode and whether the unit is an EDMAC MASTER or SLAVE, along with the appropriate address.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.8 Revision 7 MN/CDMQX.IOM (MAIN MENU:) Save/Load SAVE/LOAD Configuration: Save Load (◄ ► ENT) The CDM-Qx/QxL permit the user to store or load up to 10 different modem configurations in its non-volatile memory. Select Save or Load using the ◄ ► arrow keys, then press ENTER. 5.8.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM Load Config from Location 9 Empty (▲ ▼ ENT) Locations 1 through 10 are available. Using the ST arrow keys, select the location from which to load a configuration, then press ENTER. If the selected location contains valid data, the following screen is displayed: New Config has been Loaded from Location 9 (ENT) Press ENTER or CLEAR to return to the previous menu.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.9.3 Revision 7 MN/CDMQX.IOM UTILITY: Ref Internal Freq Ref: Adjust Warm-up delay (▲▼,ENT) For fine adjustment of the Internal 10 MHz reference oscillator, use the ST arrow keys to edit the value, then press ENTER. The range of accepted values is from –2048 to +2047. IMPORTANT The numbers displayed here do not correspond to an exact frequency increment.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.9.6 Revision 7 MN/CDMQX.IOM UTILITY: Firmware IMPORTANT THESE MENUS ARE INTENDED FOR DIAGNOSTIC PURPOSES ONLY. THE USER SHOULD CHANGE AN IMAGE ONLY IF INSTRUCTED TO DO SO BY A COMTECH EF DATA CUSTOMER SERVICE TECHNICIAN. This series of submenus permits the user to view information about the CDM-Qx/QxL internal firmware.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM UTILITY: Firmware Æ Information Æ Image#1, Image#2 Image#x: Bulk Firmware FW/00107E 05/20/09 (▲ ▼) 2.1.5 For either Image#1 or Image#2: Use the ST arrow keys to browse through each read-only screen for each component of the firmware image. Examples: Image#x: App Firmware FW/00109E 05/20/09 (▲ ▼) 2.1.5 Image#x: Mod FPGA FW/11251G 06/05/08 (▲ ▼) 1.1.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation 5.9.7 Revision 7 MN/CDMQX.IOM UTILITY: FAST FAST – Select the module: Base Slot1 Slot2 Slot3 Slot4 FAST (Fully Accessible System Topology) is used to enable new options in the CDM-Qx/QxL. Contact Comtech EF Data to obtain the FAST code for the desired option. For a step-by-step tutorial on this complete upgrade process, refer to Appendix B. FAST ACTIVATION PROCEDURE.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Front Panel Operation Revision 7 MN/CDMQX.IOM UTILITY: FAST Æ Slot# Æ Mod, Demod Æ Config FAST Configuration: Edit Code Demo Mode Select Edit Code or Demo Mode using the ◄ ► arrow keys, then press ENTER. UTILITY: FAST Æ Slot# Æ Mod, Demod Æ Config Æ Edit Code, Demo Mode Operation here is identical to selections made via the UTILITY: FASTÆBaseÆConfig menu screen.
Chapter 6. ETHERNET MANAGEMENT 6.1 Introduction The CDM-Qx/QxL base chassis is equipped for monitor and control purposes with an RJ-45 10/100 BaseT Ethernet management interface. This chapter provides a high-level overview of the functionality provided by this interface, and references other chapters in this manual for further details. 6.2 Ethernet Management Interface Protocols The modem 10/100BaseT Ethernet Management Interface supports three (3) different management protocols: IMPORTANT 6.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM 6.3.1 Management Information Base (MIB) Files MIB files are used for SNMP remote management and consist of Object Identifiers (OIDs). Each OID is a node that provides remote management of a particular function. A MIB file is a tree of nodes that is unique to a particular device. The following MIB files are associated with the CDM-Qx/QxL: MIB File/Name Description FW10874-2-.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM The modem supports both SNMPv1 traps and SNMPv2 notifications. Which style of traps the modem sends can be configured by the user via the cdmQxSNMPTrapVersion OID. The following are the MIB2 v1traps/v2 notifications that the modem supports: MIB2 SNMPv1 trap: Authentication Failure 5 MIB2 SNMPv2 notifications: Authentication Failure 1.3.6.1.6.3.1.1.5.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management 6.4 Revision 7 MN/CDMQX.IOM Telnet Interface The modem provides a Telnet interface for the purpose of Equipment M&C via the standard equipment Remote Control protocol. The Telnet interface Requires user login at the Administrator level and Read/Write level.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM response (for example, FRW? response) will be displayed as one line, with the latter lines overwriting the previous lines. In order to view the full response messages, CEFD recommends using HyperTerminal configured as Telnet Client. To do so, configure the HyperTerminal as follows: 1. Under the HyperTerminal Properties tab: Connect using TCP/IP instead of COM1 or COM2. 2.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management 6.5 Revision 7 MN/CDMQX.IOM Web Server (HTTP) Interface The sections that follow describe the functionality of the CDM-Qx/QxL Multi-Channel Satellite Modem Web Server (HTTP) Interface. Please refer to Chapter 5. FRONT PANEL OPERATION, and the Remote Commands Specifications tables found in Appendix C.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM 6.5.3 User Login To initiate a Web session with the CDM-Qx/QxL Modem, from the PC type http://www.xxx.yyy.zzzz (where “www.xxx.yyy.zzz” represents the IP address of the CDM-Qx/QxL Multi-Channel Satellite Modem) into the Address area of the Web browser: The Login window will appear, and the user is prompted to type a User Name and Password.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM 6.5.4 Web Server Page Descriptions 6.5.4.1 Home Page 6.5.4.1.1 Home | Home Page Figure 6-1. CDM-Qx/QxL Multi-Channel Satellite Modem Home page From any location within the Web Server Interface, the user can select the Home tab and/or hyperlink to return back to this top-level page.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management 6.5.4.1.2 Revision 7 MN/CDMQX.IOM Home | Contact Page Figure 6-2. Home | Contact Information page The ‘Contact’ page (Figure 6-2) provides basic contact information to reach Comtech EF Data Sales and Customer Support via phone or automated e-mail links.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management 6.5.4.1.3 Revision 7 MN/CDMQX.IOM Home | Support Page Figure 6-3. Home | Customer Support page The CDM-Qx/QxL ‘Support’ page (Figure 6-3) allows the user to compose an e-mail message for questions or problems with the modem. The Problem Report area of the display allows up to 256 characters maximum.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management 6.5.4.2 Revision 7 MN/CDMQX.IOM Admin Pages The ‘Admin’ pages provide the means to set up the access parameters required to facilitate communication with the CDM-Qx/QxL Web Server. The Admin pages are available only to users who have logged in using the Administrator Name and Password. IMPORTANT 6.5.4.2.1 Admin | Access Page Figure 6-4.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM Note the following: o These Name fields can be any alphanumeric combination with a maximum length of 10 characters. o These Password fields can be any alphanumeric combination with a maximum length of 10 characters. • SMTP Server: Specify the mail server IP address from where you want to send the e-mail.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management 6.5.4.2.2 Revision 7 MN/CDMQX.IOM Admin | Remote Page Figure 6-5. Admin | Remote page The ‘Admin | Remote’ page (Figure 6-5) sets and returns administration information for the CDM-Qx/QxL Simple Network Management Protocol (SNMP) feature. For complete details pertaining to the configuration parameters available on this page, refer to Chapter 5. FRONT PANEL OPERATION and Sect. 6.3 SNMP INTERFACE.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management 6.5.4.3 Revision 7 MN/CDMQX.IOM Config Mdm (Configure Modem) Pages The ‘Config Mdm’ pages are used to configure parameters for both the base chassis and up to four modulator or demodulator modules, whether configured independently or grouped as modems; real-time unit status information is also provided. Click either the Quick View or Unit Status hyperlinks to continue. 6.5.4.3.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM If no module is installed, the space assigned to that slot will not be visible. For example, the Configuration Icon Group shown in Figure 6-6 depicts a modulator pair (a Tx module installed in Slot#1 and an Rx module installed in Slot#2) grouped as a modem; Slots 3 and 4 are empty. Note: At a minimum, the Base icon is always displayed and selectable.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM 6.5.4.3.1.1 Config Mdm | Quick View | Config Pages Depending on the configuration icon selected, the nested Config page provides the user with access to an assortment of base unit, modulator, and demodulator configuration parameters. For detailed information on these features, refer to the pertinent subsections of Sect. 5.2 (MAIN MENU:) CONFIG in Chapter 5. FRONT PANEL OPERATION.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM Config Page – ‘Rx’ selected Config Page – ‘MD’ selected Figure 6-9.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM Modem Group (Available only on the Base nested Config page) – To create a modem group from the available installed modulator and demodulator modules, click on Group 1 or Group 2, then click [Set Group]. Note the following: • Note that, if Group 1 is defined, the unit will take the modulator and demodulator modules installed in Slot#1 and Slot#2, respectively, and group them.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM Modulator Parameters (Available on the Tx and MD nested Config pages) – Click [Submit] once all the parameters have been set in this section. Demodulator Parameters (Available on the Rx and MD nested Config pages) – Click [Submit] once all the parameters have been set in this section. Carrier-in-Carrier (CnC) Parameters (Available only on the MD nested Config page) – See Chapter 9.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM 6.5.4.3.1.2 Config Mdm | Quick View | Status Pages Depending on the configuration icon selected, the nested Status page provides the user with access to several read-only monitoring windows (events, internal redundancy, and statistics), and alarm controls that determine how fault information is filtered for unit operation and/or user review.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM Status Page – ‘Rx’ Selected Status Page – ‘MD’ selected Figure 6-11.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM Events Log (Available only on the Base nested Status page) – This scrollable read-only window provides a visual record of stored events: • Read Next Five Events: Click to buffer the next group of five stored events into the events window. • Clear Events Log: Click to wipe clean the stored events log.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM Statistics Log (Available only on the MD nested Status page) – This scrollable read-only window provides a visual record of operating statistics: • Read Next Five Statistics: Click to buffer the next group of five stored events into the statistics window. • Clear Statistics Log: Click to wipe clean the stored statistics log.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM 6.5.4.3.1.3 Config Mdm | Quick View | Test Pages Depending on the configuration icon selected, the nested Test page provides the user with access to demodulator module constellation displays and the Spectrum Analyzer feature, and an assortment of modem test functions. For detailed information on these features, refer to Sect. 5.6 (MAIN MENU:) TEST in Chapter 5. FRONT PANEL OPERATION.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM Test Page – ‘Rx’ Selected (Independent Tx/Rx Configuration) Test Page – ‘MD’ Selected (Grouped Modem Configuration) Figure 6-13.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM With Base selected, the nested Test page allows the user to simultaneously view the constellations of all installed demodulators. The top image in Figure 6-12 shows such operation, where Base Æ Test displays the constellations for this particular configuration’s four installed demodulator modules.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM Spectrum Analyzer Knobs (Available on the Rx and MD nested Test pages) – Note the following: • Mode – Use the drop-down menu to select the Spectrum Analyzer as On or Off. When the Spectrum Analyzer feature is turned ON, the selected demodulator will not be allowed to receive traffic, and the built-in BERT monitoring is ignored.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM 6.5.4.3.1.4 Config Mdm | Quick View | Utility Pages Depending on the configuration icon selected, the nested Utility page provides the user with access to an assortment of modem operating settings. For detailed information on these features, refer to Sect. 5.9 (MAIN MENU:) UTILITY in Chapter 5. FRONT PANEL OPERATION.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM Utility Page – ‘Rx’ Selected Utility Page – ‘MD’ Selected Figure 6-16.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management Revision 7 MN/CDMQX.IOM Real-Time Clock (Available only on the Base nested Utility page) – To set the date and time of the unit: • The user may enter a date using international format in the form DD/MM/YY (where DD = day [01 to 31], MM = month [01 to 12], and YY = year [00 to 99]). Click [Set Date] when done.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management • Revision 7 MN/CDMQX.IOM To Load a Modem Configuration: Use the Load Location drop-down menu to select a storage location from 0 to 9 (the default is Don’t Load), then click [Save/Load] to load the saved configuration from the unit’s non-volatile memory. Note: See Sect. 5.8 (MAIN MENU:) SAVE/LOAD in Chapter 5. FRONT PANEL OPERATION for complete details on loading/saving modem configurations.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management • • Revision 7 MN/CDMQX.IOM Using the drop-down menus… o Tx Pwr Max Increase – Select a value (in dB) from 0 to 9. o Max Pwr Reached Action – Select No Action or Generate Tx Alarm. o AUPC Enable – Select Enables or Disabled. o Rem Rx Unlock Action – Select Go to Nominal Power or Go to Maximum Power. For Rem Tx Target Eb/No – Type in a target value (in dB) from 0.0 to 9.9.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management 6.5.4.3.2 Revision 7 MN/CDMQX.IOM Config Mdm | Unit Status Page Figure 6-17. Config Mdm | Unit Status Page The ‘Config Mdm | Unit Status’ page (Figure 6-17) provides the user with read-only status window pertaining to: • General Information about the base unit; • Ethernet MAC and IP Address assignments; • Alarms. Click any tab or hyperlink to use other interface features.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management 6.5.4.4 Revision 7 MN/CDMQX.IOM ODU (Outdoor Unit) Pages (CDM-QxL only) The ‘ODU’ (Outdoor Unit) tab is used to access the BUC and LNB pages, which in turn are used to control and monitor either a Block Up Converter (BUC) or Low-Noise Block Down Converter (LNB) that is connected via FSK to the CDM-QxL. Click either the BUC or LNB hyperlinks to continue. 6.5.4.4.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management 6.5.4.4.2 Revision 7 MN/CDMQX.IOM Config | LNB (Low Noise Block Down Converter) Page Figure 6-19. ODU | LNB page The ‘ODU | LNB’ page (Figure 6-19) is used to configure Low Noise Block Down Converter parameters, and display the LNB status for L-Band operation. LNB Control • LNB DC Power and LNB 10MHZ may be turned ON or OFF using the drop-down menus.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Ethernet Management 6.5.4.5 Revision 7 MN/CDMQX.IOM Maint (Maintenance) Page Figure 6-20. Maint | Unit Info page The ‘Maint| Unit Info’ page (Figure 6-20) provides the user with a scrollable read-only status window that identifies the configured unit’s installed firmware numbers and versions. For more information, see Sect. 5.9.6 UTILITY: FIRMWARE in Chapter 5. FRONT PANEL OPERATION.
Chapter 7. FORWARD ERROR CORRECTION OPTIONS 7.1 Introduction As standard, the CDM-Qx/QxL Modem is equipped with three Forward Error Correction (FEC) encoders/decoders – Viterbi, concatenated Reed-Solomon, and Trellis (TCM, available with the 8-PSK FAST option). The constraint lengths and encoding polynomials are not only Open Network (IESS-315) compatible, but are also Closed Network compatible with the vast majority of existing modems from other manufacturers.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.IOM By choosing various coding rates (Rate 1/2, 3/4, or 7/8) the user can trade off coding gain for bandwidth compression. Rate 1/2 coding gives the best improvement in error rate, but doubles the transmitted data rate, and hence doubles the occupied bandwidth of the signal.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options 7.3.1 Revision 7 MN/CDMQX.IOM Closed Network Modes A 220,200 code is used in transparent closed network modes, and a 200,180 code is used in framed (EDMAC) modes. (220,200 means that data is put into blocks of 220 bytes, of which 200 bytes are data, and 20 bytes are FEC overhead.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.IOM As more and more high power transponders are put in to service, Intelsat recognized that the transponders are no longer power limited, but bandwidth limited. In order to maximize transponder capacity, 8-PSK was looked at as a method of reducing the occupied bandwidth of a carrier, and adopted Qualcomm’s pragmatic TCM, at Rate 2/3.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.IOM and 16-QAM TPC modes the demod and decoder can remain synchronized 2 – 3 dB below the Viterbi/Reed-Solomon or TCM cases. Comtech now provides the best Forward Error Correction technology currently available, offering a very broad range of TPC code rates, combined with the entire range of modulation types, from BPSK to 16-QAM. 7.5.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.IOM Table 6-5.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.IOM * The occupied bandwidth is defined at the width of the transmitted spectrum taken at the -10 dB points on the plot of power spectral density. This equates to 1.19 x symbol rate for the modem transmit filtering. ** Included for comparative purposes.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.IOM Eb/No in dB 1 2 3 4 5 6 7 8 9 10 11 12 1E-1 Uncoded BPSK/QPSK Viterbi Decoding 1E-2 Typical Performance 1E-3 1E-4 1E-5 1E-6 Specification limit, Rate 7/8 Coding 1E-7 1E-8 Specification limit, Rate 3/4 Coding Specification limit Rate 1/2 Coding 1E-9 1 2 3 4 5 6 7 BER Figure 6-1.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.IOM Eb/No in dB 1 2 3 4 5 6 7 8 9 10 11 12 1E-1 Comtech Turbo Product Codec Rate 21/44 BPSK Rate 5/16 BPSK 1E-2 1E-3 Spec limit Rate 5/16 BPSK Spec limit Rate 21/44 BPSK 1E-4 Uncoded BPSK/QPSK 1E-5 1E-6 1E-7 1E-8 Typical performance 1E-9 1 2 3 4 5 6 7 8 9 BER Figure 6-7.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Revision 7 MN/CDMQX.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Forward Error Correction Options Notes: 7–16 Revision 7 MN/CDMQX.
Chapter 8. AUTOMATIC UPLINK POWER CONTROL (AUPC) 8.1 Introduction The user MUST obtain permission from the Satellite Operator to use this feature. WARNING Improper use of this feature could result in a transmitting terminal seriously exceeding its allocated flux density on the Operator’s satellite. This could produce interference to other carriers, and could cause transponder saturation problems.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Automatic Uplink Power Control (AUPC) Revision 7 MN/CDMQX.IOM 4. The user will then select AUPC as the operating mode. At this point the user will be prompted to define four key parameters: AUPC Target Eb/N0; AUPC Max Range; AUPC Alarm; and Demod Unlock. 8.2.1 AUPC Target Eb/N0 TARGET Eb/N0 is value of Eb/N0 that the user desires to keep constant at the remote modem.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Automatic Uplink Power Control (AUPC) • Revision 7 MN/CDMQX.IOM MAXIMUM (increase the Tx Output Power to the maximum value permitted by the parameter MAX RANGE). (Note: If the local demod loses lock, the modem will automatically move its output power to the nominal value.) 8.3 Compensation Rate As with any closed-loop control system, the loop parameters must be chosen to ensure stability at all times.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Automatic Uplink Power Control (AUPC) Notes: 8–4 Revision 7 MN/CDMQX.
TM Chapter 9. DoubleTalk Carrier-in-Carrier® (CnC) BEFORE ATTEMPTING TO COMMISSION A SATELLITE LINK USING CARRIER-INCARRIER, THE USER MUST ENSURE THAT THE LINK IS ROBUST ENOUGH FOR NORMAL OPERATION. ONLY WHEN THIS HAS BEEN DONE – AND ALL SYSTEM ISSUES (E.G., ANTENNA-POINTING, CABLING, TERRESTRIAL INTERFERENCE, SATELLITE INTERFERENCE, ETC.) HAVE BEEN RESOLVED – SHOULD THE USER ATTEMPT THE USE OF CARRIER-IN-CARRIER. 9.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) 9.3 Revision 7 MN/CDMQX.IOM System Functionality Figure 9-1 illustrates a conventional FDMA system, where two carriers are placed in nonoverlapping channels. Figure 9-2 shows the same link using the CDM-Qx/QxL equipped with the DoubleTalk Carrierin-Carrier option. Note that now only 50% of the bandwidth is being used, as now both carriers are occupying the same bandwidth.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) Revision 7 MN/CDMQX.IOM The modem generating the ‘B’ carrier in this example should then be relocated in frequency to be “on top” of Carrier ‘A’. At this point the demodulator-receiving carrier “A” will loose lock. The carrier in carrier function must now be enabled in the Rx configuration menus.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) 9.4 Revision 7 MN/CDMQX.IOM CnC Performance Characterization In a number of ways, CnC carriers behave similar to conventional carriers in satellite links. They are both exposed to adjacent carriers, cross-polarization and rain fade, and exhibit impairments when any of these become too great.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) Adjacent Carrier Level Desired Carrier Adjacent Carrier R = 0 dB Adjacent Carrier R = +3 dB A Revision 7 MN/CDMQX.IOM Desired Carrier Adjacent Carrier B Carrier Spacing Carrier Spacing Figure 9-3.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) Revision 7 MN/CDMQX.IOM Figure 9-4. QPSK 3/4 Turbo degradation versus relative carrier spacing (for two adjacent carriers) Figure 9-5. 8-PSK 3/4 Turbo degradation versus relative carrier spacing (for two adjacent carriers) Figure 9-6.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) 9.4.2 Revision 7 MN/CDMQX.IOM Selecting The Adjacent Carrier Curve The information presented earlier characterizes the case for one or two adjacent carriers relative to the desired carrier. The desired and adjacent carriers may also be CnC carriers occupying the adjacent slots. These cases are summarized by several variants shown in Figure 9-7.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) Revision 7 MN/CDMQX.IOM carrier. The table provided in Figure 9-7 summarizes which adjacent carrier plot to select for this particular example, and which ones to use with Ratio ‘R’ between the composite adjacent and composite desired carriers. 9.4.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) Revision 7 MN/CDMQX.IOM Figure 9-9. CnC Ratio For QPSK and 8-PSK Figure 9-10. CnC Ratio For 16-QAM Figure 9-9 plots the impact of CnC ratio on QPSK and 8-PSK constellations, while Figure 9-10 shows 16-QAM. In general, the higher the operating C/N of a carrier, the more sensitive it is to degradation. QPSK is the least sensitive to CnC ratio followed by 8-PSK and 16-QAM. 9.4.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) 9.4.5 Revision 7 MN/CDMQX.IOM CnC Carrier Offset CnC carriers are normally placed directly on top of each other with the same center frequency for both carriers. Normal operation is obtained when the center frequency of the two carriers is within ± 32 kHz. This is the same as the normal acquisition range of the modem for standard and CnC carriers. 9.4.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) Revision 7 MN/CDMQX.IOM Table 9-1.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) Revision 7 MN/CDMQX.IOM In links without rain fade, the CnC ratio is constant and only the asymmetry of link due to satellite footprint, different antenna sizes, different symbol rates, or modulation and code rates alter the ratio. 9.4.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) Revision 7 MN/CDMQX.IOM the installation is a new one, a larger, though more expensive, antenna is possible at the remote site. This simultaneously decreases the CnC ratio at the hub while increasing it at the remote site. Another alternative is to reduce the modulation order and/or error correction code rate on the receive side of the remote site.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® DoubleTalk™ Carrier-in-Carrier® (CnC) • Revision 7 MN/CDMQX.IOM The CnC ratio for the site with the smaller antenna (Site ‘B’) is the same magnitude but opposite sign: CnC(Site ‘B’) = -CnC(Site ‘A’). For rain fade: • The CnC ratio changes by the same amount as the uplink fade; • Uplink fades at the near end decrease the CnC ratio; • Uplink fades at the far end increase the CnC ratio.
Chapter 10. EDMAC CHANNEL 10.1 Theory Of Operation EDMAC, an acronym for Embedded Distant-end Monitor And Control, is a feature that permits the user to access the M&C features of modems which are at the distant-end of a satellite link. This is accomplished by adding extra information to the user’s data, but in a manner that is completely transparent to the user.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® EDMAC Channel Revision 7 MN/CDMQX.IOM degradation. The net effect is that the user will see effectively identical BER performance whether framing is used or not. On the receive side: When the demodulator locks to the incoming carrier, it must go through the additional step of searching for, and locking to, the synchronization word.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® EDMAC Channel Revision 7 MN/CDMQX.IOM 10.3 Setup Summary To access a distant-end unit: • Designate a Master/Slave pair: Master at the local-end, Slave at the distant-end. • On the local-end unit, enable framing, and EDMAC, define the unit as MASTER, then enter the bus address. This is constrained to be ‘base 10' meaning that only addresses such as 10, 20, 30, 40, etc, are allowed.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® EDMAC Channel Notes: 10–4 Revision 7 MN/CDMQX.
Chapter 11. REDUNDANCY Redundancy is built into the modem and can be enabled via the FAST option activation procedure. Redundancy can be selected so as to perform backup in the following scenarios: • 1:1 Redundancy, meaning: ¾ One modulator for one modulator; ¾ One demodulator for one demodulator; ¾ One modem for one modem. • 1:2 Redundancy, meaning: ¾ One modulator for two modulators; ¾ One demodulator for two demodulators.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Redundancy Notes: 11–2 Revision 7 MN/CDMQX.
Appendix A. CABLE DRAWINGS A.1 Introduction The EIA-530 standard pinout provided on the CDM-Qx/QxL is becoming more popular in many applications. However, there are still occasions, particularly with existing EIA-422/449 and V.35 users, when a conversion must be made. For situations where such conversions are required, refer to the following table to select the appropriate cable. In addition, the standard EIA-232 cable used for performing Flash Upgrading is depicted.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix A Revision 7 MN/CDMQX.IOM A.1.1 EIA-530 to RS-422/449 Data Cable Figure A-1 shows the cable drawing for EIA-530 to RS-422/449 DCE conversion for connections between the CDM-Qx/QxL and the User data. Figure A-1.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix A Revision 7 MN/CDMQX.IOM A.1.2 EIA-530 to V.35 Data Cable Figure A-2 shows the cable drawing for EIA-530 to V.35 DCE conversion for connections between the CDM-Qx/QxL and the User data. Figure A-2. : EIA-530 to V.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix A Revision 7 MN/CDMQX.IOM A.1.3 EIA-530 Conversion Cable Figure A-3 shows the cable drawing for modem to EIA-530 conversion for connections between the CDM-Qx/QxL and the User data. Figure A-3.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix A Revision 7 MN/CDMQX.IOM A.1.4 Switch Programming Cable Figure A-4 shows the cable required for a simple EIA-232 connection between the CDM-Qx/QxL Remote Control port and an external PC serial port. This cable is needed for Flash upgrading. Figure A-4.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix A Notes: A-6 Revision 7 MN/CDMQX.
Appendix B. FAST ACTIVATION PROCEDURE B.1 Introduction Fully Accessible System Topology (FAST) is an enhancement feature available in Comtech EF Data products, enabling on-location upgrade of the operating feature set – in the rack – without removing a CDM-Qx/QxL from the setup. This accelerated upgrade can be accomplished only because of FAST’s extensive use of programmable devices incorporating Comtech EF Data-proprietary signal processing techniques.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix B Revision 7 MN/CDMQX.IOM 3. Via the UTILITY: FAST submenu: Using the ◄ ► arrow keys, select Base, Slot1, Slot2, Slot3, or Slot3, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix B B.2.2 Revision 7 MN/CDMQX.IOM View Currently Installed FAST Features To view currently installed features, proceed as instructed via the sections that follow. B.2.2.1 View Base Unit FAST Features Select MAIN MENU: Utility Æ Fast Æ Base using the ◄ ► arrow keys, then press ENTER. FAST: Config View (HW 1.02) Board S/N: 123456789 (Base) Select View using the ◄ ► arrow keys, then press ENTER.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix B Revision 7 MN/CDMQX.IOM B.2.2.2 View Installed Module (Mod/Demod, Turbo) FAST Features Select MAIN MENU: Utility Æ Fast Æ Slot# using the ◄ ► arrow keys, then press ENTER. FAST - Slot#2: Demod Turbo (▲ ▼,ENT) Depending on the installed module, select Mod (Demod) or Turbo using the ◄ ► arrow keys, then press ENTER. 1.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix B B.2.3 Revision 7 MN/CDMQX.IOM Acquire FAST Code Contact a Comtech EF Data Customer Support representative to order features. You will be asked to provide the pertinent serial numbers for the base unit motherboard, module motherboard, and the modules’ TPC daughterboard.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix B Revision 7 MN/CDMQX.IOM Press ENTER or CLEAR to return to the previous menu, and re-enter the code. If the problem persists, contact Comtech EF Data Customer Support for further assistance. B.2.4.
Appendix C. REMOTE CONTROL C.1 Overview This appendix describes the protocol and message command set for remote monitor and control of the CDM-Qx/QxL Modem. While the protocol presented here is based on remote commands for the CDM-570/570L Satellite Modem, it is modified to address features unique to CDM-Qx/QxL operation (e.g., to separately address the four plug-in slots).
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C • C.3 Revision 7 MN/CDMQX.IOM Target-to-Controller pair has one line receiver (Controller), and all Targets have Tri-State drivers. EIA-232 This is a much simpler configuration in which the Controller device is connected directly to the Target via a two-wire-plus-ground connection.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C C.5.1 Revision 7 MN/CDMQX.IOM Start of Packet Controller-to-Target: This is the character '<' (ASCII code 60). Target-to-Controller: This is the character '>' (ASCII code 62). Because this is used to provide a reliable indication of the start of packet, these two characters may not appear anywhere else within the body of the message.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Revision 7 MN/CDMQX.IOM 1. From Controller-to-Target, the only permitted values are: = (ASCII code 61 The = code is used as the assignment operator, and is used to indicate that the parameter defined by the preceding byte should be set to the value of the argument(s) that follow it. For Example: In a message from Controller-to-Target, TFQ=0950.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C C.5.6 Revision 7 MN/CDMQX.IOM Optional Message Arguments Arguments are not required for all messages. Arguments are ASCII codes for the characters 0 to 9 (ASCII codes 48 to 57); period (ASCII code 46); and comma (ASCII code 44); plus miscellaneous printable characters. C.5.7 End of Packet Controller-to-Target: This is the 'Carriage Return' character (ASCII code 13).
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C 3. CODE A APP3 AUP3 B BAD6 BCE6 BCH6 BCL6 BCP8 BCS2 BCT8 BDC6 BDV6 BER4 BFR6 BFS4 BKE8 BLO6 BOE6 BOL6 BPA6 BPC6 BRE8 BRM8 BRR8 BST8 BSV6 BUT6 C CAE3 CAS3 CCF3 CDM4 CFM4 CID3 CLD3 CNM3 CRA3 CRM4 CSD3 CST3 Index Notes: Column ‘C’ = Command; Column ‘Q’ = Query: Columns marked ‘X’ designate instruction code as Command only, Query only, or Command/Query. The numeric superscript (XXX#) indicates the 6.5.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C C.6.1 Transmit (Tx) Commands and Queries Command (Instruction Code and Qualifier) Arguments for Command or Response to Query Tx Data Clock Invert TCI= 1 byte, value 0,1 Command or Query. Invert Transmit Data Clock in the form x, where: 0=Normal 1=Inverted TX Clock Source TCK= 1 byte, value 0 1, 2 TX FEC Code Rate TCR= 1 byte, value of 0 though 7 Command or Query.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Command (Instruction Code and Qualifier) Arguments for Command or Response to Query TX Data Rate TDR= 9 bytes TX Frequency TFQ= 9 bytes Parameter Type TX FEC Type TFT= 1 byte, value of 0 though 7 Description of Arguments Command or Query. TX Data rate, in kbps, between 32 kbps and 20 Mbps depending upon code rate and modulation scheme, in the form xxxxx.xxx. Resolution=1 bps. (See Chapter 5.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type TX Power Level Command (Instruction Code and Qualifier) Arguments for Command or Response to Query TPL= 4 bytes TX ReedSolomon (n, k) values TRS= 1 byte TX Scrambler TSC= 1 byte, value of 0, 1, 2 TX Spectrum Invert TSI= 1 byte, value of 0, 1 Description of Arguments Command or Query. TX Output power level between -5 and –25 dBm (minus sign assumed) Example: TPL=13.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Command (Instruction Code and Qualifier) Arguments for Command or Response to Query Tx Common Carrier State TXC= 1 byte Command or Query. Tx carrier state common to all Tx in the form x, where: 0=Off 1=On TX Carrier State TXO= 1 byte, value 0 though 4 Command or Query.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C C.6.2 Revision 7 MN/CDMQX.IOM Receive (Rx) Commands and Queries Priority System = RFT (Highest Priority), RMD, RCR, RRS, and RDR (Lowest Priority), as indicated by shading. Any changes to a higher priority can override any of the parameters of lower priority.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type RX ReedSolomon (n, k) values Command (Instruction Code and Qualifier) RRS= Arguments for Command or Response to Query 1 byte, value of 0 through 3 Description of Arguments Command or Query.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type RX Buffer Size Command (Instruction Code and Qualifier) RBS= Arguments for Command or Response to Query 1 byte, value of 0 through 6 Description of Arguments Command or Query. RX Buffer size in the form x, where: 0=Buffer disabled 1=± 512 bits 2=± 1024 bits 3=± 2048 bits 4=± 4096 bits 5=± 8192 bits 6=± 16384 bits Revision 7 MN/CDMQX.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type RX Spectrum Invert Command (Instruction Code and Qualifier) RSI= Arguments for Command or Response to Query 1 byte, value of 0, 1 Description of Arguments Command or Query. RX Spectrum Invert in the form x, where: 0=Normal 1=RX Spectrum Invert Example: RSI=0 (Normal) RX Demod Acquisition Sweep Width RSW= 3 bytes Command or Query.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C C.6.3 Revision 7 MN/CDMQX.IOM Common (Tx, Rx, or Modem) Commands and Queries Priority System = ITF(Highest Priority), then FRM as indicated by shading. Any changes to a higher priority can override any of the parameters of lower priority. Parameter Type Module Interface Type Command (Instruction Code and Qualifier) ITF= Arguments for Command or Response to Query 1 byte Description of Arguments Command or Query.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type AUPC Parameters (Modem only) Command (Instruction Code and Qualifier) APP= Arguments for Command or Response to Query 6 bytes Description of Arguments Command or Query. Defines AUPC operating parameters in the the form abc.cd, where: a=Defines action on max power condition (0=do nothing, 1=generate TX Alarm) b=Defines action on remote demod unlock.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Command (Instruction Code and Qualifier) Configuration Load CLD= Carrier-inCarrier (CnC) Mode CNM= CnC ReAcquisition Time CRA= Arguments for Command or Response to Query 1 byte Description of Arguments Command only.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Command (Instruction Code and Qualifier) EDMAC Framing Mode (Modem only) EFM= External Reference Frequency ERF= EDMAC Slave Address Range (Modem only) ESA= Arguments for Command or Response to Query 1 byte, value of 0, 1, 2 Description of Arguments Command or Query.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Group Command (Instruction Code and Qualifier) Arguments for Command or Response to Query GRP 1 byte Description of Arguments Command or Query. Group a modulator/demodulator pair into a modem.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Internal Redundancy Mode Command (Instruction Code and Qualifier) IRM= Arguments for Command or Response to Query 5 bytes Description of Arguments Command or Query.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Alarm Mask Command (Instruction Code and Qualifier) MSK= Arguments for Command or Response to Query 12 bytes Description of Arguments Command or Query. Alarm mask condition, in form abcdefghijkl, where: a=TX FIFO (0=Unmasked, 1=Masked, X=no Tx) b=G.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Request to Send Command (Instruction Code and Qualifier) RTS= Arguments for Command or Response to Query 1 byte, value of 0, 1, 2 Description of Arguments Command or Query. Defines how RTS/CTS will operate at the main data interface in the form x, where: 0=RTS/CTS Loop, No Action RTS and CTS are looped, so that CTS echoes the state of RTS, but RTS does not control the ON/OFF state of carrier.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Quad Drop & Insert (Modem only) Command (Instruction Code and Qualifier) QDI= Arguments for Command or Response to Query 77 bytes Description of Arguments Command or Query. QDI=pccdddddddddddddddddddddddddddddddtCCiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiTLMrrrrrr, where: p = Port number 1 thru 4 cc = Number of Drop Channels, 0-32.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C C.6.4 Parameter Type RX BER Revision 7 MN/CDMQX.IOM Queries Command (Instruction Code and Qualifier) Arguments for Command or Response to Query N/A 5 bytes Description of Arguments Query only. Response to Command Query (Instruction Code and Qualifier) Response to Query N/A BER? BER=a.bEc (see Description of Arguments) N/A BFS? BFS=xx (see Description of Arguments) N/A CDM? CDM=xxx.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type RX Eb/No Command (Instruction Code and Qualifier) Arguments for Command or Response to Query N/A 3 bytes Description of Arguments Query only. Revision 7 MN/CDMQX.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Faults and Status Command (Instruction Code and Qualifier) N/A Arguments for Command or Response to Query 12 bytes Description of Arguments Query only.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Software Information Software Image Command (Instruction Code and Qualifier) Arguments for Command or Response to Query N/A variable Description of Arguments Query only. Response to Command Query (Instruction Code and Qualifier) IMG= 1 byte, value of 1 or 2 Example: FRW= Boot: FW/11246-1-,1.1.1,11/11/04 Bulk1: FW/11245-,1.1.1,11/11/04 FW/11247-1-,1.1.1,11/11/04 FW/11248-1-,1.1.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Number of Unread stored Statistics (Modem Only) TX Power Level Increase (Modem only) Command (Instruction Code and Qualifier) Arguments for Command or Response to Query N/A 3 bytes Description of Arguments Query only. Revision 7 MN/CDMQX.IOM Response to Command Query (Instruction Code and Qualifier) N/A NUS? NUS=xxx (see Description of Arguments) N/A PLI? PLI=x.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Retrieve next 5 unread stored Events Retrieved next 5 unread Stored Statistics (Modem Only) Command (Instruction Code and Qualifier) Arguments for Command or Response to Query N/A 80 bytes N/A 130 bytes Description of Arguments Revision 7 MN/CDMQX.IOM Response to Command N/A Query only.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type RX Signal Level Command (Instruction Code and Qualifier) Arguments for Command or Response to Query N/A 4 bytes Description of Arguments Query Only. Unit returns the value of the RX signal Level, in dBm, between –20 and –99 dBm, in the form ccxx, where: Revision 7 MN/CDMQX.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Unit ID Command (Instruction Code and Qualifier) Arguments for Command or Response to Query N/A 7 bytes Description of Arguments Revision 7 MN/CDMQX.IOM Response to Command N/A Query only. Unit returns information concerning the base unit identification and the option field in the form abcdefg, where: a=Redundancy option, where: 0=None; 1=1:1 mode; 2=1:2 mode; 3=1:3 mode. Notes: 1.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C C.6.5 Parameter Type Global Configuration Bulk Commands and Queries Command (Instruction Code and Qualifier) MGC= Revision 7 MN/CDMQX.IOM Arguments for Command or Response to Query 138 bytes, with numerical entries, fixed values and delimiters Response to Command Description of Arguments Command or Query.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Command (Instruction Code and Qualifier) Parameter Type OGC Outdoor Unit Global Configuration OGC= Arguments for Command or Response to Query 50 bytes Description of Arguments Command or Query.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type BUC Comms Enable Command (Instruction Code and Qualifier) BCE= Arguments for Command or Response to Query 1 byte, value of 0,1 Description of Arguments Command or Query. Enables or disables communications, via the FSK link, with an externally connected BUC in the form x, where: 0=Disabled 1=Enabled Example: BCE=0 (Disabled) Command or Query.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type BUC Output Enable Command (Instruction Code and Qualifier) BOE= Arguments for Command or Response to Query 1 byte, value of 0,1 Description of Arguments Command or Query. Note: Valid when the BUC FSK comms and BUC power are enabled. Indicates BUC Output enable in the form x, where: Revision 7 MN/CDMQX.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Terminal Tx Frequency Command (Instruction Code and Qualifier) N/A Arguments for Command or Response to Query 10 bytes Description of Arguments Revision 7 MN/CDMQX.IOM Response to Command N/A Query only. Query (Instruction Code and Qualifier) TTF? Terminal Tx Frequency, where frequency = BUC LO ± TFQ Resolution = 100 Hz Response to Query TTF=xxxxx.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Command (Instruction Code and Qualifier) Parameter Type Arguments for Command or Response to Query LNB LO Frequency LLO= 6 bytes LNB Power Control LPC= 1 byte, value of 0,1,2 Terminal Rx Frequency N/A 10 bytes C.6.8 Parameter Type BERT Config Pattern state (applies to module-bymodule basis) Command or Query.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Parameter Type Command (Instruction Code and Qualifier) BERT Config Sync Loss Threshold (applies to Rx module) BCT= BERT 10E-3 Error Insert (applies to Tx module) BKE= BERT Result in bit errors (applies to Rx module) BERT Restart Monitor (applies to Rx module) N/A BERT Result in average BER N/A Arguments for Command or Response to Query 1 byte, value of 0 to 3 1 byte, value of 0, 1 Revision 7 MN/CDMQX.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C C.6.9 Parameter Type Spectrum Analyzer Center Frequency Spectrum Analyzer Commands and Queries – Rx Module ONLY Command (Instruction Code and Qualifier) SPF= Arguments for Command or Response to Query 9 bytes Description of Arguments Command or Query. Tx Frequency in the form xxxx.xxxx, where: 0950.0000 to 1950.0000 MHz (for L-Band units) or 0500.0000 to 0090.0000 and 0100.0000 to 0180.
CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Appendix C Revision 7 MN/CDMQX.IOM C.6.10 D&I++ (Drop & Insert) Commands and Queries (E1 CCS Only) – Modem ONLY Parameter Type Drop & Insert Command (Instruction Code and Qualifier) Arguments for Command or Response to Query DNI= 65 bytes Description of Arguments Command or Query.
METRIC CONVERSIONS Units of Length Unit Centimeter Inch Foot Yard Mile Meter Kilometer Millimeter 1 centimeter — 0.3937 0.03281 0.01094 6.214 x 10-6 0.01 — — 1 inch 2.540 — 0.08333 0.2778 1.578 x 10-5 0.254 — 25.4 1 foot 30.480 12.0 — 0.3333 1.893 x 10-4 0.3048 — — 1 yard 91.44 36.0 3.0 — 5.679 x 10-4 0.9144 — — 1 meter 100.0 39.37 3.281 1.094 6.214 x 10-4 — — — 1 mile 1.609 x 105 6.336 x 104 5.280 x 103 1.760 x 103 — 1.609 x 103 1.
2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 • 333 • 2200 PHONE 480 • 333 • 2161 FAX
