CDD-880 Multi Receiver Router Installation and Operation Manual For Firmware Version 1.1.1 or higher 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.
CDD-880 Multi Receiver Router Installation and Operation Manual For Firmware Version 1.1.1 or higher Part Number MN-CDD880 Revision 0 October 11, 2010 Copyright © 2009 Comtech EF Data. All rights reserved. Printed in the USA. Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: 480.333.
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Table of Contents TABLE OF CONTENTS................................................................................................. III TABLES ........................................................................................................................ VII FIGURES ...................................................................................................................... VII PREFACE ........................................................................................................
CDD-880 Multi Receiver Router Table of Contents Revision 0 MN-CDD880 CHAPTER 1. INTRODUCTION .................................................................................. 1–1 1.1 Overview ......................................................................................................................... 1–1 1.2 Functional Description .................................................................................................. 1–2 1.3 Features ............................................
CDD-880 Multi Receiver Router Table of Contents 3.5.1 3.5.2 Revision 0 MN-CDD880 Alternating Current (AC) Power Connector (Standard) ........................................... 3–5 Ground Connector .................................................................................................... 3–5 CHAPTER 4. FLASH UPGRADING .......................................................................... 4–1 4.1 Flash Updating via Internet ..................................................................
CDD-880 Multi Receiver Router Table of Contents Revision 0 MN-CDD880 5.4.4.5.1.2 Status | Statistics | Demod ....................................................................... 5–21 5.4.4.5.1.3 Status | Statistics | Router ........................................................................ 5–23 5.4.4.5.2 Status | Monitor page ..................................................................................... 5–24 5.4.4.6 Utility page..............................................................
CDD-880 Multi Receiver Router Table of Contents Revision 0 MN-CDD880 Tables Table 3-1. Rear Panel External Connections ............................................................................. 3–1 Table 6-1. The VersaFEC ModCod Set ...................................................................................... 6–2 Figures Figure 1-1. CDD-880 L-Band Multi Receiver Router ................................................................ 1–1 Figure 1-2.
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PREFACE About this Manual This manual provides installation and operation information for the Comtech EF Data CDD-880 Multi Receiver Router. This is a technical document intended for earth station engineers, technicians, and operators responsible for the operation and maintenance of the CDD-880. Reporting Comments or Suggestions Concerning this Manual Comments and suggestions regarding the content and design of this manual will be appreciated.
CDD-880 Multi Receiver Router Preface Revision 0 MN-CDD880 The user should carefully observe the following information. IMPORTANT Cautions and Warnings IMPORTANT or NOTE indicates a statement associated with the task being performed or information critical for proper equipment function. IMPORTANT CAUTION 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.
CDD-880 Multi Receiver Router Preface • Revision 0 MN-CDD880 For 48 Volt DC standard router operation, use 3.15A fuses. These fuses are contained within individual screw-in receptacles on the CDD-880 rear panel, below the terminal blocks. Low Voltage Directive (LVD) The following information is applicable for the European Low Voltage Directive (2006/95/EC): Symbol Description Type of power cord required for use in the European Community.
CDD-880 Multi Receiver Router Preface Revision 0 MN-CDD880 Operation in vehicles or other transportable installations that are equipped to provide a stable environment is permitted. If such vehicles do not provide a stable environment, safety of the equipment to EN60950 may not be guaranteed.
CDD-880 Multi Receiver Router Preface Revision 0 MN-CDD880 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.
CDD-880 Multi Receiver Router Preface Revision 0 MN-CDD880 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. Exclusive Remedies Comtech EF Data Corporation’s warranty, as stated is in lieu of all other warranties, expressed, implied, or statutory, including those of merchantability and fitness for a particular purpose.
CDD-880 Multi Receiver Router Preface Revision 0 MN-CDD880 Customer Support Refer to p. xiii in this Preface for information regarding this product’s Warranty Policy.
CDD-880 Multi Receiver Router Preface Revision 0 MN-CDD880 Notes: xvi
Chapter 1. INTRODUCTION 1.1 Overview Figure 1-1. CDD-880 L-Band Multi Receiver Router The CDD-880 Multi Receiver Router (Figure 1-1) supports from two through 12 independent demodulators (expandable, by pairs, on a single card) in a single 1RU chassis. The CDD-880 is intended to serve as a hub expansion utility device for Comtech EF Data’s Advanced VSAT Series product offering. CDD-880 features include: • 2, 4, 6, 8, 10, or 12 fast acquisition demodulators/decoders, each supporting operation up to 4.
CDD-880 Multi Receiver Router Introduction 1.2 Revision 0 MN-CDD880 Functional Description Figure 1-2. Advanced VSAT Series Network Topology Example Figure 1-2 illustrates the CDD-880 Multi Receiver Router as deployed in a typical satellite-based communications network – in this example, a Hub-and-Spoke IP Network. The CDD-880 Multi Receiver Router features six plug-in cards, each of which supports two VersaFEC/Streamline demodulators.
CDD-880 Multi Receiver Router Introduction 1.3 Revision 0 MN-CDD880 Features 1.3.1 Physical Description The CDD-880 Multi Receiver Router is constructed as a 1RU-high rack-mounting chassis, which can be free-standing if desired. Handles at the front to facilitate removal from and placement into a rack. The unit uses a single printed circuit board assembly for high reliability. All operational upgrades and enhancements are afforded via remote firmware upgrade. 1.3.1.1 1.3.1.2 1.3.
CDD-880 Multi Receiver Router Introduction 1.3.3 Revision 0 MN-CDD880 Dimensional Envelope Figure 1-3.
CDD-880 Multi Receiver Router Introduction 1.3.4 Revision 0 MN-CDD880 Physical Features 1.3.4.1 Front Panel LED Indicators Figure 1-4. CDD-880 Front Panel View Figure 1-4 shows the front panel of the CDD-880. The front panel features 16 Light-EmittingDiode (LED) indicators.
CDD-880 Multi Receiver Router Introduction 1.3.4.2 Revision 0 MN-CDD880 Rear Panel Figure 1-5. CDD-880 Rear Panel View Figure 1-5 shows the rear panel of the CDD-880. External cables are attached to connectors on the rear panel of the unit. Each connector is described in detail in Chapter 3. REAR PANEL CONNECTOR PINOUTS. 1.3.5 Data Interfaces The CDD-880 includes, as standard, a 10/100 BaseT Fast Ethernet (FE) Interface and a 10/100/ 1000 BaseT Gigabit Ethernet (GigE) Traffic Interface. 1.3.
CDD-880 Multi Receiver Router Introduction Revision 0 MN-CDD880 When service requirements change, the operator can upgrade the topology of the CDD-880 to meet those requirements within minutes. This accelerated upgrade can be accomplished because of FAST’s extensive use of the programmable logic devices incorporated into Comtech EF Data products. FAST Implementation Comtech EF Data’s FAST system is factory-implemented in the CDD-880.
CDD-880 Multi Receiver Router Introduction 1.4 1.4.
CDD-880 Multi Receiver Router Introduction Revision 0 MN-CDD880 Figure 1-6. Rx Carrier Level vs. Symbol Rate (L-Band 950 – 2150 MHz) 1.4.2 Low Noise Block Converter (LNB) Support Parameters Specifications LNB Voltage +13 volts, +18 volts per DiSEq, and +24 volts DC at 500 mA maximum 10 MHz Reference • • • • -3 dBm ± 3 dB via Rx connector center conductor Source: Either Internal modem reference or External reference Performance: For phase noise, refer to L-Band modulator 10 MHz.
CDD-880 Multi Receiver Router Introduction 1.4.3 Revision 0 MN-CDD880 Environmental and Physical Parameters Temperature Humidity Power Supply Operating Voltage Specifications Operating 32 to 122°F (0 to 50°C) Storage -4 to 158°F (-20 to 70°C) Operating 95% maximum, non-condensing Storage 99% maximum, non-condensing AC Includes an on/off switch DC Includes an on/off switch and an input filter per PL-0000551 and PL/10312-1 Kits AC 100 – 240 Volts AC +6%/-10% autosensing (total absolute max.
CDD-880 Multi Receiver Router Introduction 1.4.4 Revision 0 MN-CDD880 BER (Bit Error Rate) VersaFEC CODEC BER BPSK (With two adjacent carriers, each 7 dB higher than the desired carrier) Rate 0.488 Guaranteed Eb/No (typical value in parentheses): For: BER=10-5 2.7 dB (2.4 dB) Rate 0.533 QPSK Guaranteed Eb/No (typical value in parentheses): Rate 0.631 QPSK Guaranteed Eb/No (typical value in parentheses): Rate 0.706 QPSK Guaranteed Eb/No (typical value in parentheses): Rate 0.
CDD-880 Multi Receiver Router Introduction Revision 0 MN-CDD880 Notes: 1–12
Chapter 2. INSTALLATION 2.1 Unpacking and Inspection The CDM-880 Multi Receiver Router and its Installation and Operation Manual are packaged in a pre-formed, reusable, cardboard carton containing foam spacing for maximum shipping protection. Be sure to keep all shipping materials for the carrier's inspection. IMPORTANT Inspect shipping containers for damage. If the shipping containers are damaged, keep them until the contents of the shipment have been carefully inspected and checked for normal operation.
CDD-880 Multi Receiver Router Installation 2.2 Revision 0 MN-CDD880 Mounting If the CDD-880 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). IMPORTANT 2.2.
CDD-880 Multi Receiver Router Installation Revision 0 MN-CDD880 The kit is installed as illustrated in Figure 2-1 and per the following procedure: Step Description 1 Secure the Adapter Plates to each side of the chassis at the rear, using the #10 flat head screws as shown. 2 Secure the #10 shoulder screws through the Adapter plate mounting slots using the #10 flat washers, #10 split washers, and #10 hex nuts as shown.
CDD-880 Multi Receiver Router Installation Revision 0 MN-CDD880 Notes: 2–4
Chapter 3. REAR PANEL CONNECTOR PINOUTS 3.1 Connector Overview The CDD-880 Multi Receiver Router rear panel connectors, shown here in Figure 3-1, provide all necessary external connections between the CDD-880 and other equipment. Table 3-1 summarizes the connectors provided on the rear panel interface, grouped according to service function. Figure 3-1. CDD-880 Rear Panel View Table 3-1. Rear Panel External Connections Connector Group Name (Ref Des) Connector Type Function IF Sect. 3.
CDD-880 Multi Receiver Router Rear Panel Connector Pinouts 3.2 Revision 0 MN-CDD880 L-BAND Rx IF Connection, Type ‘N’ The Rx IF input port connector is a 50Ω Type ‘N’ female. The return loss on these ports is typically better than 17 dB, and if the user wishes to connect to a 75Ω system, an inexpensive ‘N’ to ‘F’ type adapter can be used and is available as an optional accessory. While there will be a reduction in return loss when doing this, the effect in most systems will be imperceptible.
CDD-880 Multi Receiver Router Rear Panel Connector Pinouts 3.4 3.4.1 Revision 0 MN-CDD880 Utility Connections (FUTURE) REDUNDANCY Connector, DB-9F The REDUNDANCY connector provides the 1:1 control (redundant switch) interface via a 9-pin Type ‘D’ female (DB-9F) connector. It is intended for future connection to a CRS-500 M:N Redundancy System.
CDD-880 Multi Receiver Router Rear Panel Connector Pinouts 3.4.3 Revision 0 MN-CDD880 MONITOR Connector, DB-15M The MONITOR connector provides the Rx constellation and analog AGC level of the selected demod via a 15-pin Type ‘D’ male (DB-15M) connector. The connector pinouts are as follows: Pin # 1 3.4.
CDD-880 Multi Receiver Router Rear Panel Connector Pinouts 3.5 3.5.1 Revision 0 MN-CDD880 Power / Ground Connections Alternating Current (AC) Power Connector (Standard) For continued operator safety, always replace the fuses with the correct type and rating. IMPORTANT A standard, detachable, non-locking, 3-prong power cord (IEC plug) supplies the Alternating Current (AC) power to the CDD-880. The IEC line input connector contains the ON/OFF switch for the unit.
CDD-880 Multi Receiver Router Rear Panel Connector Pinouts Revision 0 MN-CDD880 Notes: 3–6
Chapter 4. FLASH UPGRADING 4.1 Flash Updating via Internet The CDD-880 Multi Receiver Router uses ‘Flash memory’ technology internally. This makes software upgrading very simple, and updates can now be sent over satellite, 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.
CDD-880 Multi Receiver Router Flash Upgrading 4.2 Revision 0 MN-CDD880 Ethernet FTP Upload Procedure Step 1 Procedure Identify the reflashable product, firmware number, and version for download.
CDD-880 Multi Receiver Router Flash Upgrading 3 Revision 0 MN-CDD880 Download the correct firmware file to this temporary folder. As shown in Figure 4-1: a) Go online to: www.comtechefdata.
CDD-880 Multi Receiver Router Flash Upgrading Revision 0 MN-CDD880 9 Transfer the files: Type "put FW0000423x.bin" (where ‘x’ denotes the revision letter) to begin the file transfers. It will take a few seconds to transfer the file. The process sequences through several blocks – this may take several minutes. When the upgrade image has been received, the image will be written to flash memory and the message “UPLOAD COMPLETE” will be displayed. 10 Verify the file transfer.
Chapter 5. ETHERNET MANAGEMENT 5.1 Introduction The CDD-880 Multi Receiver Router is equipped with an RJ-45 10/100 BaseT Ethernet management interface, labeled MANAGEMENT FE, that is used for monitor and control purposes. This chapter provides a high-level overview of the functionality provided by this interface. For details about using the CDD-880’s serial remote interface, see Appendix B. REMOTE CONTROL. 5.
CDD-880 Multi Receiver Router Ethernet Management Revision 0 MN-CDD880 If otherwise assigned, the user may write down the IP Addresses for future reference: UNIT MANAGEMENT IP ADDRESS: __ UNIT TRAFFIC IP ADDRESS: __ 5.3 ___________________ ___________________ SNMP Interface The Simple Network Management Protocol (SNMP) is an application-layer protocol designed to facilitate the exchange of management information between network devices. The CDD-880 SNMP agent supports both SNMPv1 and v2c.
CDD-880 Multi Receiver Router Ethernet Management Revision 0 MN-CDD880 The user defines two Community Strings for SNMP access: 5.4 • Read Community default = public • Write Community default = private Web Server (HTTP) Interface The sections that follow describe the functionality of the CDD-880 Multi Receiver Router Web Server (HTTP) Interface. 5.4.
CDD-880 Multi Receiver Router Ethernet Management Revision 0 MN-CDD880 5.4.3 Web Server Menu Tree The operations available through this interface are illustrated by this menu tree: The CDD-880 Web Server Interface provides access to five (5) navigation tabs (shown in blue): • Home • Admin • Configuration • Status • Utility Beyond this top-level row of navigation tabs, the diagram illustrates the available primary (green) and nested (yellow) page tabs that afford the user more specific functionality.
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.1 Revision 0 MN-CDD880 About the Virtual Front Panel Each page in the CDD-880 Web Server Interface features a ‘Virtual Front Panel’. This read-only display emulates the operational state of the CDD-880 front panel LEDs, affording the user with true ‘heads-up’ operational status indicators that react dynamically to the configuration changes made via the Web Server Interface pages. 5.4.4.2 Home Pages Click the Home or Contact tab to continue. 5.4.
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.2.2 Revision 0 MN-CDD880 Home | Contact Figure 5-2. Home | Contact page The ‘Home | Contact’ page (Figure 5-2) provides basic contact information to reach Comtech EF Data Sales and Customer Support via phone, fax, or Web/e-mail hyperlinks.
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.3 Revision 0 MN-CDD880 Admin Pages The ‘Admin’ pages (Figure 5-3 through Figure 5-7) provide the means to set up the access parameters required to facilitate communication with the CDD-880 Web Server Interface. The Admin pages are available only to users who have logged in using the Administrator Name and Password. IMPORTANT Click the Access, SNMP, FAST, Firmware, or Auto Logout tab to continue. 5.4.4.3.1 Admin | Access Figure 5-3.
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.3.2 Revision 0 MN-CDD880 Admin | SNMP Figure 5-4. Admin | SNMP page The ‘Admin | SNMP’ page (Figure 5-4) sets and returns administration information for the CDD-880 Simple Network Management Protocol (SNMP) feature. For further information about SNMP, see Section 5.3 SNMP INTERFACE. SNMP Configuration Use the provided text boxes to assign the desired SNMP configuration string.
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.3.3 Revision 0 MN-CDD880 Admin | FAST Upgrading the FAST features will cause the unit to reboot with reconfiguration of all appropriate operating parameters. IMPORTANT Figure 5-5.
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.3.4 Revision 0 MN-CDD880 Admin | Firmware Figure 5-6. Admin | Firmware page The ‘Admin | Firmware’ page (Figure 5-6) is used to select the current active firmware image to be loaded for operation upon power-up or soft reboot. Slot Information This read-only status section provides information about the firmware loaded into boot Slot 1 or Slot 2.
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.3.5 Revision 0 MN-CDD880 Admin | Auto Logout Figure 5-7. Admin | Auto Logout page The ‘Admin | Auto Logout’ page (Figure 5-7) provides a security measure for safeguarding access to a previously logged-in unit. Once configured, the active session will be terminated if the unit is allowed to remain idle (i.e., when no user activity occurs) for the specified Auto Logout timeframe.
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.4 Revision 0 MN-CDD880 Configuration Pages The ‘Configuration’ pages are used to configure all router parameters. Click the Interface, Demod, ARP, or Routing tab to continue (the ‘Configuration | LNB’ page is inoperable at this time). 5.4.4.4.1 Configuration | Interface Click the FE Mgt or GE tab to continue. 5.4.4.4.1.1 Configuration | Interface | FE Mgt Figure 5-8.
CDD-880 Multi Receiver Router Ethernet Management Revision 0 MN-CDD880 Negotiated Link Mode – The read-only actual negotiated line speed and duplex setting for the FE interface is displayed here. The viewable settings are: • 1000 BaseT / Full Duplex • 100 BaseT / Half Duplex • 100 BaseT / Full Duplex (GigE only) • 10 BaseT / Full Duplex • 10 BaseT / Half Duplex Once the desired configuration settings have been made on this page, click [Submit] as needed to save these changes. 5.4.4.4.1.
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.4.2 Revision 0 MN-CDD880 Configuration | Demod Figure 5-10. Configuration| Mod page The ‘Configuration | Demod’ page (Figure 5-10) permits the user to configure CDD-880 Tx modulator operations. Note that, for any configuration item requiring text entry, a reference to the operational ranges for that text box is provided to the right of that text box.
CDD-880 Multi Receiver Router Ethernet Management Revision 0 MN-CDD880 Frequency – Enter the Rx frequency, in MHz. The valid range is from 950 – 2150 MHz. Rx MODCOD – Use the drop-down menu to select the Demodulation type and FEC rate (MODCOD). Selections are as follows: • • • • • VersaFEC – QPSK 0.488 VersaFEC – QPSK 0.533 VersaFEC – QPSK 0.631 VersaFEC – QPSK 0.706 VersaFEC – QPSK 0.803 • • • • • VersaFEC – 8-QAM 0.642 VersaFEC – 8-QAM 0.711 VersaFEC – 8-QAM 0.780 VersaFEC – 16-QAM 0.
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.4.4 Revision 0 MN-CDD880 Configuration | ARP Figure 5-11. Configuration | ARP page The ‘Configuration | ARP’ page (Figure 5-12) is used to configure the router’s ARP (Address Resolution Protocol) parameters. Add Static ARP This section allows the user to directly add a static ARP entry. Note that the index will automatically increment to the next available number. Click [Add Entry] once all changes have been made in this section.
CDD-880 Multi Receiver Router Ethernet Management Revision 0 MN-CDD880 IP – Entry IP Address, format XXX.XXX.XXX.XXX; MAC – Entry MAC Address, format YY:YY:YY:YY:YY; Type (read-only) – Entry Type is identifiable as Static or Dynamic and cannot be edited. Click [Submit Changes] once the desired edits have been made in this section. 5.4.4.4.5 Configuration | Routing Figure 5-12.
CDD-880 Multi Receiver Router Ethernet Management Revision 0 MN-CDD880 Route Table (Edit) This section displays and allows the user to edit all current Route Table entries. Note the following: Index – This is the internal table index that is automatically assigned and cannot be edited. Desc. – Enter a string label in this text box. Provided to help users maintain their network, the assigned name cannot contain any whitespace and must be unique. Dest.
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.5 Revision 0 MN-CDD880 Status pages The Status pages ( through ) provide the user with status, event logging, and operational statistics windows. Click the Statistics or Monitor tab to continue. 5.4.4.5.1 Status | Statistics pages Click the Summary, Demod, or Router tab to continue. 5.4.4.5.1.1 Status | Statistics | Summary Figure 5-13.
CDD-880 Multi Receiver Router Ethernet Management Revision 0 MN-CDD880 Maximum (Mbps) – Peak symbol rate (in megabits per second). Ethernet Statistics Total Pkts Tx – Total number of packets transmitted. Total Pkts Rx – Total number of packets received. UC Pkts Tx – Unicast packets transmitted. UC Pkts Rx – Unicast packets received. MC Pkts Tx – Multicast packets transmitted. MC Pkts Rx – Multicast packets received. Current Tx (Mbps) – Most recent transmitted data rate (in megabits per second).
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.5.1.2 Revision 0 MN-CDD880 Status | Statistics | Demod Figure 5-14. Status | Statistics | Demod page The ‘Status | Statistics | Demod’ page (Figure 5-15) is used to view cumulative demodulator traffic information. The Web Server Interface polls current operations and populates this section with the configured demodulators (i.e., Demod #1 through Demod #12). If a slot is polled as empty or otherwise unrecognizable, a message is displayed – e.g.
CDD-880 Multi Receiver Router Ethernet Management Revision 0 MN-CDD880 For each operating demodulator, note the following: Pkts Rx – Packets received. UC Pkts Rx – Unicast packets received. MC Pkts Rx – Multicast packets received. Current (Mbps) – Most recent symbol rate (in megabits per second). Maximum (Mbps) – Peak symbol rate (in megabits per second). (Satellite Rx Statistics) Satellite RX Overrun Errors – Packets dropped after being combined from all 12 demods (aggregate data rate too high).
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.5.1.3 Revision 0 MN-CDD880 Status | Statistics | Router Figure 5-15. Status | Statistics | Router page The ‘Status | Statistics | Router’ page (Figure 5-16) is used to view cumulative router traffic information. Clear Statistics Click [Clear] to clear all router statistics from the buffer. Interface Counters / Router Counters / Management Counters For each section, click [Refresh] to update the section with its latest available statistics.
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.5.2 Revision 0 MN-CDD880 Status | Monitor page Figure 5-16. Status | Monitor page The ‘Status | Monitor’ page (Figure 5-17) provides an alarms summary table plus a scrollable readonly window that displays any events and alarms as logged by the unit during normal operation. Alarms This read-only section provides an overall tally of the Unit, Tx, Rx, and LNB Alarms compiled since the logging buffer was last cleared.
CDD-880 Multi Receiver Router Ethernet Management Revision 0 MN-CDD880 Input Port Status This read-only section provides, on an active demod basis, an overall tally of the parameters compiled since the logging buffer was last cleared. For each active demodulator, note the following: Lock – VersaFEC decoder lock. Eb/No (dB) – Estimated channel noise level. Estimated Corrected BER – Bit Error Rate after VersaFEC decoding. RSSI (dB) – Relative Signal Strength Indicator (0 – 60 dB of demod’s operating range).
CDD-880 Multi Receiver Router Ethernet Management 5.4.4.6 Revision 0 MN-CDD880 Utility page Figure 5-17. Utility page The ‘Utility’ page (Figure 5-18) provides an array of top-level system operation controls, configuration storage/selection, and test utilities. Modem Unit Name – The assigned product label is identified here. System Contact / System Location – E-mail and telephone contact information for Comtech EF Data Customer Support are provided here.
CDD-880 Multi Receiver Router Ethernet Management Revision 0 MN-CDD880 Set Time (hh:mm:ss) – Enter a time using HH:MM:SS format (where HH = hour [00 to 23], MM = minutes [00 to 59], and SS = seconds [00 to 59]). Set Date (dd/mm/yy) – Enter a date using the European time format DD/MM/YY (where DD = day [01 to 31], MM = month [01 to 12], and YY = year [00 to 99]). Click [Submit] once the desired changes have been made for the time and date.
CDD-880 Multi Receiver Router Ethernet Management Revision 0 MN-CDD880 Notes: 5–28
Chapter 6. FORWARD ERROR CORRECTION 6.1 Introduction The Forward Error Correction (FEC) method utilized by the CDD-880 Multi Receiver Router is a completely new family of short-block Low Density Parity Check (LDPC) codes with very low latency called VersaFEC®. A patents-pending technology wholly owned and developed by Comtech EF Data and CEFD sister division Comtech AHA Corp.
CDD-880 Multi Receiver Router Forward Error Correction Revision 0 MN-CDD880 Figure 6-1. The VersaFEC Codes versus Shannon Capacity There are 12 ModCods in the VersaFEC set (Table 6-1). The modulation types (BPSK, QPSK, 8-QAM and 16-QAM) and the code rates have been chosen to give a continuous progression of performance in terms of both Eb/No and spectral efficiency – an essential aspect of a well-engineered ACM system. Table 6-1.
CDD-880 Multi Receiver Router Forward Error Correction 6.3 Revision 0 MN-CDD880 CDD-880 Error Performance Characteristics Figure 6-2 through Figure 6-5 illustrate the guaranteed error performance characteristics of the CDD-880. Eb/No in dB 1 2 3 4 5 6 7 8 9 10 11 12 1E-1 Comtech VersaFEC® Codec Rate 0.488 BPSK Uncoded BPSK/QPSK 1E-2 1E-3 Rate 0.488 BPSK 1E-4 Typical performance shown guaranteed performance curve is 0.
CDD-880 Multi Receiver Router Forward Error Correction Revision 0 MN-CDD880 Eb/No in dB 1 2 3 4 5 6 7 8 9 10 11 12 1E-1 Comtech VersaFEC® Codec Rate 0.533, 0.631, 0.706, and 0.803 QPSK Uncoded BPSK/QPSK 1E-2 1E-3 Rate Rate Rate Rate 0.533 0.631 0.706 0.803 QPSK QPSK QPSK QPSK 1E-4 Typical performance shown guaranteed performance curves are 0.3 dB to the right 1E-5 1E-6 1E-7 1E-8 1E-9 1 2 3 4 5 6 7 8 9 10 11 BER Figure 6-3. VersaFEC Codec – QPSK, Rate 0.533, 0.631, 0.
CDD-880 Multi Receiver Router Forward Error Correction Revision 0 MN-CDD880 Eb/No in dB 1 2 3 4 5 6 7 8 9 10 11 12 1E-1 Comtech VersaFEC® Codec Rate 0.642, 0.711, 0.780 8-QAM Uncoded BPSK/QPSK 1E-2 Rate 0.642 8-QAM Rate 0.711 8-QAM Rate 0.780 8-QAM 1E-3 Uncoded 8-PSK 1E-4 1E-5 1E-6 1E-7 Typical performance show guaranteed performance curves are 0.3 dB to the right 1E-8 1E-9 1 2 3 4 5 6 7 8 9 10 11 BER Figure 6-4. VersaFEC Codec – 8-QAM, Rate 0.642, 0.711, and 0.
CDD-880 Multi Receiver Router Forward Error Correction Revision 0 MN-CDD880 Eb/No in dB 1 2 3 4 5 6 7 8 9 10 11 12 1E-1 Comtech VersaFEC® Codec Rate 0.731, 0.780, 0.829 and 0.853 16-QAM Uncoded BPSK/QPSK 1E-2 Uncoded 16-QAM Rate Rate 0.780 0.731 16-QAM 16-QAM 1E-3 Rate Rate 0.829 0.853 16-QAM 16-QAM 1E-4 1E-5 1E-6 1E-7 Typical Performance shown guaranteed performance curves are 0.3dB to the right 1E-8 1E-9 1 2 3 4 5 6 7 8 9 10 11 BER Figure 6-5.
Appendix A. FAST ACTIVATION PROCEDURE A.1 Introduction The CDD-880 Multi Receiver Router is extremely flexible and powerful, and incorporates a number of optional features. In order to permit a lower initial cost, the unit may be purchased with only the desired features enabled.
CDD-880 Multi Receiver Router Appendix A A.2 Revision 0 MN-CDD880 Activation Procedure via Web Server (HTTP) Interface The CDD-880 available FAST options are listed – and the FAST Code entry/option activation controls are provided – via the Web Server Interface on the ‘Admin | FAST’ page. Refer to Chapter 5.4. WEB SERVER (HTTP) INTERFACE for a complete overview on CDD-880 operations via this interface. A.2.
CDD-880 Multi Receiver Router Appendix A A.2.2 Revision 0 MN-CDD880 Record Serial Number When contacting a Comtech EF Data sales representative during normal business hours to order features, the user will be asked to provide the CDD-880’s serial number. This serial number is provided in the FAST Code section of the ‘Admin | FAST’ page: The user should write this number down prior to contacting Comtech EF Data: Unit Serial Number: _________________________ A.2.
CDD-880 Multi Receiver Router Appendix A Revision 0 MN-CDD880 Notes: A–4
Appendix B. REMOTE CONTROL B.1 Overview This appendix describes the protocol and message command set for remote monitor and control (M&C) of the CDD-880 Multi Receiver Router. The electrical interface is an EIA-232 connection (for the control of a single device), and data is transmitted in asynchronous serial form, using ASCII characters. Control and status information is transmitted in packets of variable length in accordance with the structure and protocol defined in later sections. B.
CDD-880 Multi Receiver Router Appendix B Revision 0 MN-CDD880 The Controller, which is in charge of the process of monitor and control, is the only device that is permitted to initiate, at will, the transmission of data. Targets are only permitted to transmit when they have been specifically instructed to do so by the Controller. All bytes within a packet are printable ASCII characters, less than ASCII code 127. In this context, the Carriage Return and Line Feed characters are considered printable.
CDD-880 Multi Receiver Router Appendix B Revision 0 MN-CDD880 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. B.4.2 Target Address In EIA-232 applications this value is set to 0. IMPORTANT B.4.3 The Controller sends a packet with the address of a Target – the destination of the packet.
CDD-880 Multi Receiver Router Appendix B ? (ASCII code 63) Revision 0 MN-CDD880 The ‘?’ code is used as the Query Operator (QO) and is used to indicate that the Target should return the current value of the parameters defined by the preceding byte. Example: In a message from Controller-to-Target, IG1? Would mean “return the current value of the GE Port IP address.” 2. From Target-to-Controller, the only permitted values are: Symbol B.4.
CDD-880 Multi Receiver Router Appendix B B.5 Revision 0 MN-CDD880 Remote Commands and Queries As explained earlier in this appendix, serial remote monitor and control is accomplished through use of a ‘Controller’ device – typically a PC or ASCII dumb terminal. An example of such a device is shown to the right. From this interface, the user may type ‘help[cr]’ or ‘?[cr]’ to display the CDD-880’s available commands and queries, and to review instructions for using the interface.
CDD-880 Multi Receiver Router Appendix B B.5.1 Revision 0 MN-CDD880 Unit Parameters Parameter Type Default Passwords Command (Instruction & Qualifier) DPW= Number of Arguments N/A Description of Arguments Command Only Resets the admin username/password to: GE Address IG1= Management IP Address IPA= GE1 Link Configuration LC1= Username = “comtech” Password = “comtech” 18 bytes Command or Query.
CDD-880 Multi Receiver Router Appendix B Parameter Type Command (Instruction & Qualifier) Management MAC Address N/A GE MAC Address N/A Management Link Configuration MLC= Actual Negotiated Port Speed N/A SNMP Read Community SRC= SNMP Write Community SWC= Number of Arguments Revision 0 MN-CDD880 Description of Arguments 12 bytes, alphanumerical Query only. Returns the unique MAC Address for the modem. Example: MAC=0006B00001C2 12 bytes, Query only. alphaReturns the unique GE MAC Address.
CDD-880 Multi Receiver Router Appendix B Revision 0 MN-CDD880 Notes: B–8
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.
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