INSTALLATION AND OPERATION MANUAL FOM-E3, FOM-T3 E3/T3 Fiber Optic Modem Version 1.
FOM-E3, FOM-T3 E3/T3 Fiber Optic Modem Version 1.0 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-E3, FOM-T3 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 (20A for USA and Canada). The circuit breaker in the building installation should have high breaking capacity and must operate at short-circuit current exceeding 35A (40A for USA and Canada). 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 grounding 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.
Français Mise au rebut du produit Afin de faciliter la réutilisation, le recyclage ainsi que d'autres formes de récupération d'équipement mis au rebut dans le cadre de la protection de l'environnement, il est demandé au propriétaire de ce produit RAD de ne pas mettre ce dernier au rebut en tant que déchet municipal non trié, une fois que le produit est arrivé en fin de cycle de vie.
• Avant la mise en marche de l'équipement, assurez-vous que le câble de fibre optique est intact et qu'il est connecté au transmetteur. • Ne tentez pas d'ajuster le courant de la commande laser. • N'utilisez pas des câbles ou connecteurs de fibre optique cassés ou sans terminaison et n'observez pas directement un rayon laser. • L'usage de périphériques optiques avec l'équipement augmentera le risque pour les yeux.
Français Connexion au courant du secteur Assurez-vous que l'installation électrique est conforme à la réglementation locale. Branchez toujours la fiche de secteur à une prise murale équipée d'une borne protectrice de mise à la terre. La capacité maximale permissible en courant du circuit de distribution de la connexion alimentant le produit est de 16A (20A aux Etats-Unis et Canada).
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-E3, FOM-T3 conforms to the following standard(s) or other normative document(s): EMC: EN 55022:1998 + Information technology equipment – Radio disturbance A1:2000, A2:2003 characteristics – Limits and methods of measurement.
Quick Start Guide If you are familiar with FOM-E3 and FOM-T3 fiber optic modems, use this guide to prepare the units for operation. 1. Installing FOM-E3 and FOM-T3 Open the FOM-E3 and FOM-T3 case by releasing the two rear panel screws and sliding out the PCB interior of the unit.
Quick Start Guide Installation and Operation Manual Connecting the Cables To connect the cables: 1. Connect the E3 or T3 electrical interface. 2. Connect the fiber optic interface. 3. Connect the power cable (first to the modem, then to the mains supply). Operation starts when the power is applied to the rear panel power connector. 2. Operating FOM-E3 and FOM-T3 1. Check that the TEST switch is set to the NORM position. 2. Verify LED status.
Contents Chapter 1. Introduction 1.1 1.2 1.3 1.4 Overview....................................................................................................................1-1 Versions .................................................................................................................1-1 Application .............................................................................................................1-2 Features ........................................................................
Table of Contents ii Installation and Operation Manual FOM-E3, FOM-T3 Ver. 1.
Chapter 1 Introduction 1.1 Overview FOM-E3 and FOM-T3 are fiber optic modems for transmission of E3 (34.368 Mbps) or T3 (44.736 Mbps) over multimode- or single-mode fiber optic media. The units are transparent to framing, and can transmit data using any framing pattern with HDB3 or B3ZS coded signals. The electrical signal is converted into an optical signal using an infrared light emitting diode or laser diode transmitter.
Chapter 1 Introduction Installation and Operation Manual Fiber Optic Interface FOM-E3 and FOM-T3 supports different fiber optic interfaces, as detailed in Table 1-1. Power Supply • AC source: 100 to 240 VAC • DC source: 40 to 72 VDC Application In the application illustrated in Figure 1-1, each FOM-E3 or FOM-T3 receives E3 or T3 signals, which are equalized to overcome electrical link distortion. FOM-E3 or FOM-T3 then converts the E3 or T3 signals into an optical signal.
Installation and Operation Manual Chapter 1 Introduction FOM-E3 and FOM-T3 operates with several different grades and sizes of fiber optic cable and provide the user with: • Extended high-rate range transmission • Immunity to electrical interference such as EMI, RFI, spikes, and differential ground loops • Secure data transfer (transmitted information cannot be tapped) • Protection from sparks and lightning • Secure link in hazardous or hostile environment. Table 1-1.
Chapter 1 Introduction Installation and Operation Manual 1.2 Physical Description Figure 1-2 illustrates the FOM-E3 and FOM-T3 fiber optic modems. Figure 1-2. FOM-E3 and FOM-T3, 3D View The front panels of FOM-E3 and FOM-T3 contain LEDs, which display the power, E3/T3 electrical and fiber optic interface status. The front panel also includes the TEST slide switch for the local and remote loopbacks activation. For details, refer to Chapter 3.
Installation and Operation Manual Chapter 1 Introduction Signal Conversion An infrared light emitting diode or laser transmitter converts the electrical NRZ signal into an optical CDP signal. At the opposite end of the fiber, the optical signal is converted back into an electrical signal and amplified to the required level. Data/Clock Recovery A phase locked loop (PLL) circuit recovers data and clocking from the signal.
Chapter 1 Introduction Diagnostics Installation and Operation Manual Range See Table 1-1 Loopbacks • Local loopback (LLB), activated via front panel slide switch • Remote loopback (RLB), activated via front panel slide switch Alarm Relay Port AIS Signaling Frequency of ±25 ppm is sent to the electrical interface at the local unit in the event of an optical signal loss.
Chapter 2 Installation and Setup This chapter describes installation procedures for the standalone FOM-E3 and FOM-T3 devices. After installing the unit, refer to Chapter 3 for the system operation information. Refer to Chapter 4 for troubleshooting and diagnostics information. Internal settings, adjustment, maintenance, and repairs may be performed only by a skilled technician who is aware of the hazards involved.
Chapter 2 Installation and Setup 2.3 Installation and Operation Manual Installation and Setup FOM-E3 and FOM-T3 are standalone devices intended for tabletop or bench installation. They are delivered completely assembled. No provision is made for bolting the unit on the tabletop. To install FOM-E3 or FOM-T3: 1. Determine the required configuration of FOM-E3 or FOM-T3, according to your application, and set the internal jumpers and switches accordingly. 2. Connect the E3/T3 electrical interface. 3.
Installation and Operation Manual Chapter 2 Installation and Setup Caution FOM-E3 and FOM-T3 contain components sensitive to electrostatic discharge (ESD). To prevent ESD damage, avoid touching the internal components. Before moving jumpers, touch the FOM-E3 or FOM-T3 frame. To open the FOM-E3 or FOM-T3 case: 1. Disconnect all the cables connected to FOM-E3 or FOM-T3. 2. Release the two rear panel screws and use them as levers to slide out the PCB interior of the unit.
Chapter 2 Installation and Setup Installation and Operation Manual Table 2-1. Main Board Jumper Settings Jumper Description Values (factory setting in bold) AIS, JP5 Controls the AIS transmission to the electrical or optical interface, when a minor alarm is detected ON – AIS is transmitted OFF – AIS is not transmitted Setting the E3/T3 Interface Board Jumpers Use the JP2 jumper on the E3 interface board to select the E3 cable length (see Figure 2-2 and Table 2-2). JP2 1 2 3 Figure 2-2.
Installation and Operation Manual Chapter 2 Installation and Setup Table 2-3. Selecting the T3 Interface Cable T3 Cable Length Jumper Positions (factory setting in bold) JP1 JP2 JP3 0 ft – 225 ft Pins 2, 3 Pins 1, 2 Pins 2, 3 225 ft – 300 ft Pins 1, 2 Pins 1, 2 Pins 1, 2 More than 300 ft Pins 1, 2 Pins 2, 3 Pins 1, 2 Note: The maximum cable length complies with ITU-T G.703. Closing the Case After making the internal settings, close the FOM-E3 and FOM-T3 case.
Chapter 2 Installation and Setup Installation and Operation Manual Connecting the Fiber Optic Interface This module includes Class 1 lasers. For your safety: Warning • Do not look directly into the optical connectors while the module is operating. Remember that the module starts operating as soon as it is inserted in an operating DXC system. • Do not attempt to adjust the laser drive current. The use of optical instruments with this product will increase eye hazard.
Installation and Operation Manual Chapter 2 Installation and Setup Connecting the AC Power Note Before installing the product, review Handling Energized Products at the beginning of the manual. To connect AC power, use the standard 5 ft (1.5m) power cable supplied with the unit. (See Figure 2-4). To connect AC power: • Connect the power cable first to the connector on the FOM-E3 or FOM-T3 rear panel, and then to the mains outlet.
Chapter 2 Installation and Setup 2-8 Installation and Setup Installation and Operation Manual FOM-E3, FOM-T3 Ver. 1.
Chapter 3 Operation 3.1 Turning FOM-E3 and FOM-T3 On FOM-E3 and FOM-T3 operate as soon as they are connected to the power source. The PWR LED turns ON and remains lit as long as the units are connected to the mains. 3.2 Controls and Indicators Figure 3-1 shows the front panel of FOM-E3. Table 3-1 lists the functions of the FOM-E3 controls, connectors, and indicators located on the front panel. TEST ELECTRICAL OPTICAL NORM LOC PWR REM LOW AIS ERR AIS Figure 3-1. FOM-E3 Front Panel Table 3-1.
Chapter 3 Operation 3.3 Installation and Operation Manual Normal Operation During normal operation all indicators should be OFF, except for the PWR indicator. Note Some of LEDs may turn on upon the FOM-E3 or FOM-T3 power-up, indicating that other communication equipment is not functioning properly. 3.4 Turning Off Turn FOM-E3 and FOM-T3 off by disconnecting the power cord from the mains. 3-2 Turning Off FOM-E3, FOM-T3 Ver. 1.
Chapter 4 Diagnostics and Troubleshooting 4.1 Alarm Relay FOM-E3 and FOM-T3 include a dry contact alarm relay port with a 9-pin connector for sensing major and minor alarms. • • Major alarms are initiated when E3/T3 electrical input becomes lower than G.703 electrical levels, or bit error rate at the fiber optic interface is 10-6 or worse. Minor alarms occur when an alarm indication signal (AIS) is received at the E3/T3 electrical or fiber optic interfaces.
Chapter 4 Diagnostics and Troubleshooting 4.2 Installation and Operation Manual Diagnostic Loopbacks Local Loopback (LLB) FOM-E3 and FOM-T3 support activation of a local loopback, which tests the performance of E3/T3 electrical interface of the local unit and equipment attached to it. The data received at the E3/T3 electrical interface is looped back to the equipment attached to it (see Figure 4-2 ). LOC Position Coax FOM-E3 or FOM-T3 E3 or T3 BERT Figure 4-2.
Installation and Operation Manual 4.3 Chapter 4 Diagnostics and Troubleshooting Troubleshooting Instructions In case a problem occurs, refer to Table 4-1 for the troubleshooting procedures. Perform the actions listed under Corrective Measures in the order given in the table, until the problem is corrected. Table 4-1. Troubleshooting Chart Trouble Symptoms Probable Cause Corrective Measures PWR indicator is OFF No AC power • Verify that the power outlet is providing the required power.
Chapter 4 Diagnostics and Troubleshooting 4-4 Technical Support Installation and Operation Manual FOM-E3, FOM-T3 Ver. 1.
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-E3, FOM-T3 Ver. 1.
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Publication No. 282-200-12/08 Order this publication by Catalog No. 803578 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@rad.com www.rad.
