INSTALLATION AND OPERATION MANUAL FOM-E1/T1 E1/T1 Fiber Optic Modem Version 2.
FOM-E1/T1 E1/T1 Fiber Optic Modem Version 2.0 Installation and Operation Manual Notice This manual contains information that is proprietary to RAD Data Communications Ltd. ("RAD"). No part of this publication may be reproduced in any form whatsoever without prior written approval by RAD Data Communications.
Limited Warranty RAD warrants to DISTRIBUTOR that the hardware in the FOM-E1/T1 to be delivered hereunder shall be free of defects in material and workmanship under normal use and service for a period of twelve (12) months following the date of shipment to DISTRIBUTOR.
General Safety Instructions The following instructions serve as a general guide for the safe installation and operation of telecommunications products. Additional instructions, if applicable, are included inside the manual. Safety Symbols This symbol may appear on the equipment or in the text. It indicates potential safety hazards regarding product operation or maintenance to operator or service personnel.
Handling Energized Products General Safety Practices Do not touch or tamper with the power supply when the power cord is connected. Line voltages may be present inside certain products even when the power switch (if installed) is in the OFF position or a fuse is blown. For DC-powered products, although the voltages levels are usually not hazardous, energy hazards may still exist.
The maximum permissible current capability of the branch distribution circuit that supplies power to the product is 16A. The circuit breaker in the building installation should have high breaking capacity and must operate at short-circuit current exceeding 35A. Before connecting the DC supply wires, ensure that power is removed from the DC circuit. Locate the circuit breaker of the panel board that services the equipment and switch it to the OFF position.
When using shielded or coaxial cables, verify that there is a good ground connection at both ends. The earthing and bonding of the ground connections should comply with the local codes. The telecommunication wiring in the building may be damaged or present a fire hazard in case of contact between exposed external wires and the AC power lines. In order to reduce the risk, there are restrictions on the diameter of wires in the telecom cables, between the equipment and the mating connectors.
FCC-15 User Information This equipment has been tested and found to comply with the limits of the Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Declaration of Conformity Manufacturer's Name: RAD Data Communications Ltd. Manufacturer's Address: 24 Raoul Wallenberg St., Tel Aviv 69719, Israel declares that the product: Product Name: FOM-E1/T1 conforms to the following standard(s) or other normative document(s): EMC: Safety: EN 55022:1998 + A1:2000, A2:2003 Information technology equipment – Radio disturbance characteristics – Limits and methods of measurement.
Quick Start Guide Installation of FOM-E1/T1 should be carried out only by an experienced technician. If you are familiar with FOM-E1/T1, use this quick start guide to set it up for operation. This guide describes the standalone version of the modem. Perform the installation procedures for both the local and the remote units. 1. Installing FOM-E1/T1 Configuring FOM-E1/T1 1. Disconnect all the cables connected to FOM-E1/T1. 2. Locate the DIP switch on the FOM-E1/T1 rear panel. 3.
Quick Start Guide Installation and Operation Manual Connecting the Cables To connect cables: 1. Connect the E1/T1 electrical interface. 2. Connect the fiber optic interface. 3. Connect the power cable (first to the modem, then to the mains). Operation starts when the power is applied to the rear panel power connector. 2. Operating FOM-E1/T1 1. Check that SW1 of the DIP switch is set to OFF. 2. Verify LED status. All the LED indicators should be OFF, except for the PWR indicator. 3.
Contents Chapter 1. Introduction 1.1 1.2 1.3 1.4 Overview....................................................................................................................1-1 Product Options......................................................................................................1-1 Application .............................................................................................................1-1 Features .............................................................................
Table of Contents 5.3 5.4 Installation and Operation Manual DC Supply ...............................................................................................................5-3 Power Supply Redundancy ......................................................................................5-3 FOM-E1/T1/R Front Panel ...........................................................................................5-4 Installing the FOM-E1/T1/R Card ...........................................................
Chapter 1 Introduction 1.1 Overview This manual provides information on the technical characteristics, installation, and operation of the FOM-E1/T1 fiber optic modem as a standalone unit, and as FOM-E1/T1/R rack-mount card for the ASM-MN-214 modem rack. FOM-E1/T1 is a fiber optic modem for transmission of E1 (2.048 Mbps) or T1 (1.544 Mbps) over multimode or single-mode fiber optic media. The communication equipment is connected to FOM-E1/T1 according to the ITU G.703 standard.
Chapter 1 Introduction Installation and Operation Manual Features Fiber Optic Interface Table 1-1 provides information on the characteristics of the fiber optic interface types supported by FOM-E1/T1 and FOM-E1/T1/R, including the maximum range of a typical fiber optic cable. The maximum range values given assume a margin of 3 dB. Table 1-1. Fiber Optic Interface Types Wavelength Fiber Type [nm] [μm] 850 62.5/125 multimode 1310* 62.
Installation and Operation Manual Chapter 1 Introduction E1/T1 Interface • The electrical interface meets requirements of ITU G.703 standard for E1 and T1. • FOM-E1/T1 supports both balanced and unbalanced interfaces. When FOM-E1/T1 detects electrical interface levels below G.703 electrical levels, the modem transmits an “All 1 signal” (AIS) to the optical interface. Test and Diagnostics Capabilities • FOM-E1/T1 supports local and remote loopback activation.
Chapter 1 Introduction Installation and Operation Manual 1.3 Functional Description This section describes the functional circuitry of the FOM-E1/T1 fiber optic modem. FOM-E1/T1 is used for transmission of E1 (2.048 Mbps) and T1 (1.544 Mbps) over multimode or single-mode fiber optic media. The unit is transparent to framing and can transmit data using any framing pattern with HDB3 or B8ZS coded signals. Figure 1-3 illustrates the FOM-E1/T1 block diagram.
Installation and Operation Manual 1.4 Chapter 1 Introduction Technical Specifications E1/T1 Interface Transmission Rates E1: 2.048 Mbps T1: 1.
Chapter 1 Introduction Power Environment 1-6 Installation and Operation Manual Wide-Range Version 100 to 240 VAC, 50 to 60 Hz 8 VA or 48 VDC (48 to 60 VDC) 3W DC Version 24 VDC 4W Fuses FOM-E1/T1/R: 1A 250V and 50 mA 250V Temperature -5°–55°C (23°–131°F) Humidity Up to 90%, non–condensing Technical Specifications FOM-E1/T1 Ver. 2.
Chapter 2 Installation and Setup 2.1 Introduction This chapter describes installation and setup procedures for the standalone FOM-E1/T1 modem. FOM-E1/T1 is delivered completely assembled. It is designed for tabletop installation. After installing the unit, refer to Chapter 3 to assure normal operation. In case a problem is encountered, refer to Chapter 4 for test instructions. Note Before installing the product, review Handling Energized Products at the beginning of the manual. 2.
Chapter 2 Installation and Setup Installation and Operation Manual • Power cord • DC adapter connector (for FOM-E1/T1 with 48 VDC option) 2.4 Equipment Needed FOM-E1/T1 is a standalone device intended for tabletop or bench installation. It is delivered completely assembled. There is no provision for bolting the unit on the tabletop.
Installation and Operation Manual Chapter 2 Installation and Setup Table 2-1 FOM-E1/T1 DIP Switch Settings Jumper/Switch Function Possible Settings (factory settings shown in bold) SW1, LOOP ENABLE Enables or disables LLB or RLB activation ON – LLB or RLB is activated OFF – LLB or RLB is not activated SW2, RLB/LLB SW3, E1/T1 Selects local loopback (LLB) or remote loopback (RLB) to be activated from FOM-E1/T1 ON – RLB is selected Selects electrical interface type (E1 or T1) ON – E1 OFF – LLB is
Chapter 2 Installation and Setup Installation and Operation Manual Connecting the E1/T1 Interface The rear-panel E1/T1 connector provides interface for data input/output, clock reference, and control signal exchange between FOM-E1/T1 and E1/T1 equipment. A balanced E1/T1 interface terminates in an RJ-45 connector (see Appendix A for the connector pinout). An unbalanced E1 interface terminates in two coaxial BNC connectors, designated as IN and OUT. IN refers to the FOM-E1/T1 input signal.
Installation and Operation Manual Chapter 2 Installation and Setup To connect DC power: • FOM-E1/T1 Ver. 2.0 Refer to the DC power supply connection supplements for instructions how to wire the DC adapters, and to the Handling Energized Products section.
Chapter 2 Installation and Setup 2-6 Connecting to Power Installation and Operation Manual FOM-E1/T1 Ver. 2.
Chapter 3 Operation This chapter contains the following information for the FOM-E1/T1 standalone modem: Note • FOM-E1/T1 front-panel indicators and controls • Operating procedures (turn-on, front-panel indications, performance monitoring and turn-off) Complete and check the installation procedures in Chapter 2 before operating FOM-E1/T1. 3.1 Turning FOM-E1/T1 On FOM-E1/T1 starts operating as soon as it is connected to the power source.
Chapter 3 Operation Installation and Operation Manual Table 3-1. FOM-E1/T1 Front Panel Controls and Indicators Name LED Color Function PWR Green ON – FOM-E1/T1 is powered up LLB Yellow ON – A local loopback is active RLB Yellow ON – A remote loopback is active ELEC LOSS Red ON – E1/T1 electrical input is below G.
Chapter 4 Troubleshooting and Diagnostics This chapter describes the following FOM-E1/T1 diagnostic functions: • Front panel LED indicators • Alarm relays • Diagnostic loopbacks. The chapter also provides tips on troubleshooting and frequently asked questions. 4.1 Detecting Errors Front Panel LEDs The front panel LED indicators indicate the status of the FOM-E1/T1. For a description of LED indicators and their functions, see Chapter 3. Alarm Relays FOM-E1/T1 has dry contact alarm relays.
Chapter 4 Troubleshooting and Diagnostics 4.2 Installation and Operation Manual Troubleshooting Table 4-1 gives details on troubleshooting. Perform the actions listed under Corrective Measures in the order given in the table until the problem is corrected. Table 4-1. Troubleshooting Chart Symptom Probable Cause(s) Corrective Measures PWR LED is OFF No AC power Verify that the power outlet is providing the required power. Ensure that both ends of the AC power cord are connected properly.
Installation and Operation Manual 4.3 Chapter 4 Troubleshooting and Diagnostics Testing FOM-E1/T1 Local Loopback (LLB) FOM-E1/T1 supports local loopbacks that test the electrical interface of the local unit, the performance of the E1/T1, and equipment attached to the interface. Data received at the E1/T1 electrical interface is returned (looped back) to the attached equipment. Also, if the AIS switch is set ON, the AIS is sent to the remote unit (see Figure 4-1).
Chapter 4 Troubleshooting and Diagnostics Installation and Operation Manual To activate remote loopback: 1. Set SW2 (RLB/LLB) of the rear panel DIP switch to the ON (RLB) position. 2. Set SW1 of the rear panel DIP switch to the ON (LOOP ENABLE) position. The TEST REM indicator lights up and remains lit as long as the remote loopback is active. 4.4 Frequently Asked Questions Q: Does FOM-E1/T1 operate opposite FOM-40? A: No. The fiber optic interfaces of these modems are not compatible.
Chapter 5 FOM-E1/T1/R Card Version This chapter describes the card cage version of FOM-E1/T1 and discusses the following topics: • ASM-MN-214 card cage • FOM-E1/T1/R plug-in card for the ASM-MN-214 cage • Cage and card power supply • Installation of cage and card. 5.1 ASM-MN-214 Card Cage The ASM-MN-214 card cage contains one or two power supplies and up to 14 plug-in cards.
Chapter 5 FOM-E1/T1/R Card Version Installation and Operation Manual Terminal Block Terminal Block CIA/TB-BNC/214 Figure 5-1 ASM-MN-214 Rear Panel 5.2 Power Supply The FOM-E1/T1/R card is powered from the ASM-MN-214 power supply through the chassis. Each FOM-E1/T1/R card has two fuses that protect the entire system against power failure due to a short circuit in one card (see Figure 5-4). The ratings of the fuses are 1A, 250V and 50 mA, 250V.
Installation and Operation Manual Chapter 5 FOM-E1/T1/R Card Version DC Supply The DC power supply is -48 VDC (-36 to -72 VDC) or 24 VDC (18 to 32 VDC). It uses a DC/DC converter module to provide the power required for the cards. Power Supply Redundancy Optional power supply redundancy provides two separate power supplies that operate together and share the load of the whole card cage. If either of the power supplies fails, the other one will continue to supply full power to the card cage.
Chapter 5 FOM-E1/T1/R Card Version 5.3 Installation and Operation Manual FOM-E1/T1/R Front Panel Figure 5-3 shows the FOM-E1/T1/R card front panel. The front panel of FOM-E1/T1/R includes fiber optic connectors, loopback initiation switch, and LED indicators. The front panel LEDs of the card version are functionality identical to those in the standalone device. For information on the LED indicators, see Front Panel Controls and Indicators in Chapter 3.
Installation and Operation Manual 5.4 Chapter 5 FOM-E1/T1/R Card Version Installing the FOM-E1/T1/R Card Setting the Jumpers and Switches The FOM-E1/T1/R internal jumpers and switches are described in Table 5-1. Figure 5-4 illustrates the FOM-E1/T1/R PCB layout. INPUT OUTPUT GROUNDED GROUNDED FLOATING FLOATING 25 0 V SW3 FUSE SW1 50 JP6 250V FUSE 1A mA JP5 JP4 JP3 JP2 JP1 AIS 100 ohm 120 ohm 75 ohm BAL BAL UNBAL T1 CEPT ON OFF SW4 Figure 5-4 FOM-E1/T1/R PCB Layout FOM-E1/T1 Ver. 2.
Chapter 5 FOM-E1/T1/R Card Version Installation and Operation Manual Table 5-1. FOM-E1/T1/R Internal Jumpers and Switches Jumper/Switch Function Possible Settings (factory setting in bold) SW4, AIS When a major alarm is detected, AIS is transmitted to either the electrical or optical interface.
Installation and Operation Manual Chapter 5 FOM-E1/T1/R Card Version Fiber Optic The ST, SC, or FC fiber optic connectors are located on the front panel of the modem card. Alarm Relay The ASM-MN-214 DB-25 connector serves as an alarm relay port (see Appendix A for the connector pinout). FOM-E1/T1 Ver. 2.
Chapter 5 FOM-E1/T1/R Card Version 5-8 Installing the FOM-E1/T1/R Card Installation and Operation Manual FOM-E1/T1 Ver. 2.
Appendix A Pinouts A.1 Standalone FOM-E1/T1 Balanced RJ-45 Connector A balanced E1/T1 interface terminates in an RJ-45 connector. Table A-1 describes the RJ-45 connector pinout. Table A-1.
Appendix A Pinouts Installation and Operation Manual A.2 FOM-E1/T1 /R Modem Card The 25-pin D-type female connector on the rear panel of the ASM-MN-214 modem rack serves as an alarm relay port. Table A-3 lists the functions of the DB-25 pins. Table A-3 ASM-MN-214, DB-25 Pin Assignment Pin Contact 10, 22 Normally Closed 10, 21 Normally Open 13, 25 Normally Closed 13, 24 Normally Open Alarm Type Minor Major The relay positions are shown in the non-energized (alarm active) state.
24 Raoul Wallenberg Street, Tel Aviv 69719, Israel Tel: +972-3-6458181, Fax +972-3-6483331, +972-3-6498250 E-mail: erika_y@rad.com, Web site: http://www.rad.com Customer Response Form RAD Data Communications would like your help in improving its product documentation. Please complete and return this form by mail or by fax or send us an e-mail with your comments. Thank you for your assistance! Manual Name: FOM-E1/T1 version 2.
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Publication No. 284-200-09/08 International Headquarters 24 Raoul Wallenberg Street Tel Aviv 69719, Israel Tel. 972-3-6458181 Fax 972-3-6498250, 6474436 E-mail market@rad.com North America Headquarters 900 Corporate Drive Mahwah, NJ 07430, USA Tel. 201-5291100 Toll free 1-800-4447234 Fax 201-5295777 E-mail market@radusa.com www.rad.
