FOMi-E1/T1 High Speed Fiber Optic Modem Installation and Operation Manual Notice This manual contains information that is proprietary to RAD Data Communications. No part of this publication may be reproduced in any form whatsoever without prior written approval by RAD Data Communications. No representation or warranties for fitness for any purpose other than what is specifically mentioned in this manual is made either by RAD Data Communications or its agents.
Warranty This RAD product is warranted against defects in material and workmanship for a period of one year from date of shipment. During the warranty period, RAD will, at its option, either repair or replace products which prove to be defective. For warranty service or repair, this product must be returned to a service facility designated by RAD. Buyer shall prepay shipping charges to RAD and RAD shall pay shipping charges to return the product to Buyer.
Telecommunication Safety The safety status of each of the ports on the FOMi-E1/T1 is declared according to EN 41003 and is detailed in the table below: Ports Safety Status E1, T1 (electrical) SELV Circuit operating with Safety Extra-Low Voltage Regulatory Information 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.
Declaration of Conformity Manufacturer’s Name: RAD Data Communications Ltd. Manufacturer’s Address: 12 Hanechoshet St. Tel Aviv 69710 Israel declares that the product: Product Name: FOMi-E1/T1 Conforms to the following standard(s) or other normative document(s): EMC: Safety: EN 55022 (1994) Limits and methods of measurement of radio disturbance characteristics of information technology equipment.
Quick-Start Guide If you are familiar with fiber optic modems, use this guide to prepare FOMi-E1/T1 for operation. QS.1 Installing FOMi-E1/T1 For most normal installations, setup of FOMi-E1/T1 should be performed in the following order (see Chapters 2 and 3 for details of each procedure): Warning Jumper Setting Setup Configuration via Front Panel Alarms Check Make sure that the AC power cord is disconnected before removing the unit's cover. 1. Remove the internal board. 2.
Quick-Start Guide 2 Operating FOMi-E1/T1 FOMi-E1/T1 Installation & Operation Manual
Preface Foreword This manual provides information on the technical characteristics, installation and operating instructions of FOMi-E1/T1. The manual contains the following information: Chapter 1. Introduction Describes the FOMi-E1/T1, the versions available, features and options. Briefly describes the Front Panel, LEDs, jumpers, connectors and fuses. This chapter also provides a basic functional description of the FCD-T1 and a short description of some of the main operations and options. Chapter 2.
Contents QUICK-START GUIDE QS.1 Installing FOMi-E1/T1......................................................................................................1 Jumper Setting ......................................................................................................................... 1 Setup....................................................................................................................................... 1 Configuration via Front Panel ...........................................
Contents Power-On Procedure ............................................................................................................ 2-6 Normal Operating Indications ............................................................................................... 2-6 Power-Off Procedure ............................................................................................................ 2-6 CHAPTER 3. OPERATION 3.1 Controls and Indicators ..........................................................
List of Figures Figure 1-1 Application Diagram .................................................................................................... 1-1 Figure 1-2 FOMi-E1/T1 Simplified Block Diagram.......................................................................... 1-3 Figure 1-3 FOMi-E1/T1 Simplified Block Diagram.......................................................................... 1-5 Figure 2-1 FOMi-E1/T1 Stand Alone PCB Layout .................................................................
List of Tables List of Tables Table 1-1 Power Coupled into Fiber and Approximate Application Range ..................................... 1-6 Table 2-1 DB-15 Pin Assignment ................................................................................................... 2-5 Table 2-2 FOMi-E1/T1 Indicator Status .......................................................................................... 2-6 Table 3-1 FOMi-E1/T1 Controls and Indicators .........................................................
Chapter 1 Introduction This chapter: • Describes FOMi-E1/T1, the versions available, features and options. • Briefly describes the Front Panel. • Provides a basic functional description of FOMi-E1/T1 and a short description of some of the main operations and options. • Details FOMi-E1/T1 technical specifications. 1.1 Overview General Description FOMi-E1/T1 is a fiber-optic modem for transmission of E1 (2048 Mbps) and T1 (1544 Mbps) signals over multimode or single-mode fiber-optic media.
FOMi-E1/T1 Installation & Operation Manual Chapter 1. Introduction Features FOMi-E1/T1 extends the range of E1/T1 signals over fiber optic links. It is available as a standalone unit or as a card version for the LRS-12 19" modem rack with SNMP management. FOMi-E1/T1 supports E1 balanced and unbalanced (coax) interfaces and is transparent to framing. Operating over multimode or single mode fibers, FOMi-E1/T1 has a transmission range up to 100 km using the laser diode option.
FOMi-E1/T1 Installation & Operation Manual Chapter 1. Introduction 1.2 Physical Description FOMi-E1/T1 is a compact unit, intended for installation on desktops or shelves. The unit height is 4.4 cm (1.7") (see Figure 1-2). Figure 1-2 FOMi-E1/T1 Simplified Block Diagram Front Panel All controls (buttons and LCD) and LED indicators are located on the FOMi-E1/T1 front panel. On the master unit of FOMi-E1/T1 and on the PCU there are three buttons on the front panel – "SCROLL," "CURSOR," and "ENTER.
FOMi-E1/T1 Installation & Operation Manual Chapter 1. Introduction 1.3 Functional Description General This section describes the functional circuitry of FOMi-E1/T1 and focuses on the requirements for setting the correct configuration of the modem. See Figure 1-3 for a block diagram of FOMi-E1/T1 circuitry. Main Principles of Operation FOMi-E1/T1 is a high speed data link between computers, routers or multiplexers.
FOMi-E1/T1 Installation & Operation Manual Chapter 1. Introduction BERT The pattern generator sends a standard 511-bit pseudo-random pattern to the remote unit when the user activates the modem diagnostic. At the same time, the pattern receiver checks the data received from the remote unit and compares it with the standard 511-bit pattern. If errors are detected, the ERR LED indicator flashes or remains ON. The errors are also displayed on the LCD.
FOMi-E1/T1 Installation & Operation Manual Chapter 1. Introduction 1.4 Technical Specifications Electrical Interface The electrical interface meets requirements of ITU G.703, G.921 and G.956 standards for E1 and T1. Transmission rates 2.048 Mbps for E1 standards 1.
FOMi-E1/T1 Installation & Operation Manual General Indicators Diagnostics Chapter 1. Introduction Dynamic range 28 dB for all types of optical interfaces Budget (Max) 20 dB for 850 nm over 62.5/125 22 dB for 1300 nm over 9/125 28 dB for 1300 nm laser over 9/125 POWER (green) On when the unit is powered. ELECTRICAL LOW (red) On when the electrical interface input is below G.703 electrical levels. ELECTRICAL AIS (yellow) On when an all "1" string is received at the electrical interface.
FOMi-E1/T1 Installation & Operation Manual Chapter 1. Introduction Controls and Displays LCD Two rows of 16 characters (Master Unit) Buttons CURSOR, SCROLL, ENTER (Master and PCU units) Indicators See Section 3.1 Physical Dimensions Environment 1-8 Height Width Depth Weight Operating Temperature Humidity Technical Specifications 4.4 24 19.3 1.4 cm cm cm kg / 1.7 in (1U) / 9.6 in / 7.6 in / 3.
Chapter 2 Installation & Setup This chapter provides mechanical and electrical installation procedures for FOMi-E1/T1. If a problem is encountered, refer to Chapter 4 for troubleshooting instructions. FOMi-E1/T1 is supplied as a fully assembled standalone unit. FOMi-E1/T1 can be adapted to fit into a 19" rack (to order the rack mount adapter kit, see Ordering Options on the FOMi-E1/T1 data sheet). See Appendix A for rack mount adapter installation instructions. 2.
Chapter 2. Installation & Setup FOMi-E1/T1 Installation & Operation Manual 2.3 Equipment Needed To operate the standalone version of the FOMi-E1/T1 modem on a desktop or shelf, no additional equipment is needed. To install the standalone version of the FOMi-E1/T1 modem in a 19" rack (either single or in a side by side configuration when a couple is needed), a rack adapter kit, RM-9, is required (for rack installation instructions refer to Appendix A). 2.
FOMi-E1/T1 Installation & Operation Manual Chapter 2. Installation & Setup 120 E1 100 T1 75 E1 Cable Type Jumper Figure 2-1 FOMi-E1/T1 Stand Alone PCB Layout ➤ To return FOMi-E1/T1 to its case: 1. Insert the board firmly into the FOMi-E1/T1 case. 2. Insert the FOMi-E1/T1 top cover by pushing it straight down. 3. Insert and tighten the four cover screws.
Chapter 2. Installation & Setup FOMi-E1/T1 Installation & Operation Manual Figure 2-2 FOMi-E1/T1 Rear Panel, AC Power Connection Figure 2-3 FOMi-E1/T1 Rear Panel, DC Power Connection Connecting the Fiber-Optic Cables Two fiber-optic SC, ST or FC-PC connectors are located on the rear panel and marked TX and RX. ➤ To connect the fiber-optic cables: 1. Remove the protective caps from the connectors and store them in a safe place for later use. 2.
FOMi-E1/T1 Installation & Operation Manual Chapter 2. Installation & Setup Table 2-1 RJ-45 Pin Assignment Pin No. Designation/ Function 1 TTIP 2 TRING 3 Frame Ground 4 RTIP 5 RRING 6 Frame Ground 7, 8 Not connected The E1 and T1 ports should be connected to SELV (Safety Extra Low Voltage) links only. Warning Dry Contact Alarm The supervisory port is a 9-pin, D-type connector which provides dry contact for major and minor alarms. For more information and pinout, see Chapter 4, Table 4-4.
FOMi-E1/T1 Installation & Operation Manual Chapter 2. Installation & Setup AC Power Connection AC power should be supplied to FOMi-E1/T1 through the 5 ft (1.5m) standard power cable terminated by a standard 3-prong plug (see Figure 2-2). The cable is provided with the unit. ➤ To connect AC power to FOMi-E1/T1: • Connect the power cable to the connector on the FOMi-E1/T1 rear panel and then to the mains outlet. The unit turns on automatically upon connection to the mains.
FOMi-E1/T1 Installation & Operation Manual Chapter 2. Installation & Setup 2.5 Initial Operation and Basic Checks Power-On Procedure FOMi-E1/T1 is turned on as soon as power is connected. When power is connected, the PWR LED lights up to indicate that the FOMi-E1/T1 is on. When the unit is powered ON, operating personnel are not exposed to voltage in excess of 30 volts on any card or accessible area of the DC power supply.
Chapter 2.
Chapter 3 Operation This chapter describes FOMi-E1/T1 front panel controls and indicators and their functions. It also explains how to configure and operate the modem LCD menu. All the installation procedures described in Chapter 2 must be completed and checked out successfully before you attempt to operate FOMi-E1/T1. 3.1 Controls and Indicators All controls and indicators are located on the front panel of FOMi-E1/T1.
FOMi-E1/T1 Installation and Operation Manual Chapter 3. Operation FOMi-E1T1 PWR ELECTRICAL LOW 5 OPTICAL AIS LOW 7 CONTROL TEST ERR AIS 8 9 11 13 Figure 3-2 FOMi-E1/T1 Slave Front Panel PCU CONTROL UNIT REV X.
FOMi-E1/T1 Installation and Operation Manual Chapter 3. Operation Table 3-1 FOMi-E1/T1 Controls and Indicators Item Name Type Function 1 CURSOR Button Moves the cursor between the LCD fields. 2 SCROLL Button Moves between options of the current menu. 3 ENTER Button Selects the current option and updates both local and remote modem data bases. 4 LCD display LCD display Displays the current menu screen and cursor position. 5 PWR (green) LED indicator On when power is on.
FOMi-E1/T1 Installation and Operation Manual Chapter 3. Operation The function of the data fields is as follows: Menu Type Displays the available control menus LOC/REM Toggles between controlling and monitoring the local modem or the remote modem Menu Options Contains the control and monitoring options of each control menu Parameters Displays the current parameter for the controllable menu options Menu operations are selected by the three front-panel buttons and displayed on the LCD display.
FOMi-E1/T1 Installation and Operation Manual Chapter 3. Operation ALARM BUFFER LINE CONFIG INTERFACE MAJOR ELEC REM. M BITRATE MAJOR OPTICAL RLB CABLE NO MANAGEMENT BERT TESTS AIS LLB FO INTERFACE RLB + BERT TESTS LED TEST Figure 3-5 FOMi-E1/T1 Menu Option Menu If a menu option is left unchanged for more than one minute, the unit automatically returns to the STATUS menu; if there is an alarm stored in the ALARM BUFFER, the unit displays the ALARM BUFFER menu.
FOMi-E1/T1 Installation and Operation Manual Chapter 3. Operation parameters.
FOMi-E1/T1 Installation and Operation Manual Chapter 3. Operation STATUS Menu Options Table 3-3 Menu Options Indicates Parameter Values Description Interface Current electrical interface G.703 Bit Rate Line Bit Rate 2048 kbps 1544 kbps Electrical interface rate 75 120 100 E1 75Ω unbalanced, 120Ω balanced; T1 100Ω balanced SC85 ST85 FC85 SC13 ST13 FC13 SC13L ST13L FC13L SC15L FC15L ST15L SC, ST, FC optical connectors: This option is displayed only if management is active.
FOMi-E1/T1 Installation and Operation Manual Chapter 3. Operation STATUS ALARM BUFFER LINE CONFIG DTE CONFIG TESTS STATUS REM LOC REM BITRATE BITRATE CABLE INTRF FO-INTRF REM. M TEST Figure 3-6 STATUS Menu Options Viewing Active Alarms (ALARM BUFFER) FOMi-E1/T1 contains a buffer which stores the system alarms. When alarms are stored in the alarm buffer, the ERR LED indicator is set to ON. Once the alarm buffer is cleared, the ERR LED turns off.
FOMi-E1/T1 Installation and Operation Manual Chapter 3. Operation You will only be able to modify the configuration once the other party has finished its modifications and: • a minute has passed since the other party finished and the system returns back to STATUS, or • the other party scrolled out of LINE CONFIG. Setting the Remote Modem (REM.M) FOMi-E1/T1 allows you to select the mode of operation to fit to the remote modem type.
FOMi-E1/T1 Installation and Operation Manual Chapter 3. Operation ➤ To set the AIS 1. Press CURSOR to move to the Menu Type field. 2. Press SCROLL until DTE CONFIG is displayed. AIS is displayed in the Menu Options field. 3. Press CURSOR to move to the LOC/REM field. 4. Press SCROLL to select the local modem or the remote modem. 5. Press CURSOR to move to the Parameters field. 6. Use SCROLL to toggle between ENABLE and DISABLE. 7. Press the ENTER button to set your choice.
Chapter 4 Troubleshooting and Diagnostics This chapter: • Provides troubleshooting tips for FOMi-E1/T1. • Describes FOMi-E1/T1 messages and alarms. • Details FOMi-E1/T1 Diagnostic tests. 4.1 Troubleshooting This section lists some possible failures and describes the symptoms and the corrective actions the user has to take in order to overcome these failures. Perform the corrective actions listed in Table 4-1 in the order given until the problem is corrected.
Chapter 4. Troubleshooting & Diagnostics FOMi-E1/T1 Installation & Operation Manual Table 4-1 Troubleshooting Symptom Possible Cause Corrective Action PWR LED is off. Blown fuses Replace the fuses. On a stand alone AC unit the fuse is on the rear panel. On a stand alone DC unit, the fuses are on the PCB, close to the power input connector. ERR and OPTICAL LOW LEDs are on. The line between the modems is not connected properly. Check that the line is properly connected.
FOMi-E1/T1 Installation & Operation Manual Chapter 4. Troubleshooting & Diagnostics 4.2 Status Indicators and Alarms Messages FOMi-E1/T1 responds in real time to changes in system status, dictated by the user. The messages described in Table 4-2 override the current menu display for a period of approximately two seconds on the FOMi-E1/T1 front panel LCD or on the PCU LCD.
FOMi-E1/T1 Installation & Operation Manual Chapter 4. Troubleshooting & Diagnostics ➤ To view active alarms: 1. Press the CURSOR button to move to the Menu Type field. 2. Press the SCROLL button until ALARM BUFFER is displayed. 3. Press the CURSOR button to move to the LOC/REM field. 4. Press the SCROLL button, toggle between the local and the remote modem (if management is not active, the remote modem will not be displayed). 5.
FOMi-E1/T1 Installation & Operation Manual Chapter 4. Troubleshooting & Diagnostics 4.3 Diagnostic Tests FOMi-E1/T1 supports several types of loopbacks for checking the communication between the attached equipment and the local modem as well as the communication between the modems. Use the test procedures provided in this chapter to verify normal system operation and to isolate faulty equipment and lines in the event of failure. Do not perform tests with faulty equipment.
Chapter 4. Troubleshooting & Diagnostics FOMi-E1/T1 Installation & Operation Manual Figure 4-2 Local FOMi-E1/T1 in Analog Loopback (LLB) ➤ To perform a Local Analog Loopback test: 1. Press the CURSOR button to move to the Menu Type field. 2. Press the SCROLL button until Tests is displayed. 3. Press the CURSOR button to move to the LOC/REM field. 4. Press the SCROLL button to select the local modem or the remote modem. 5. Press the CURSOR button to move to the Menu Options field. 6.
FOMi-E1/T1 Installation & Operation Manual Chapter 4. Troubleshooting & Diagnostics STATUS ALARM BUFFER LINE CONFIG DTE CONFIG TESTS REM LOC REM TESTS ON LLB ON OFF LLB RLB RLB+BERT BERT LEDS CHECK Figure 4-3 FOMi-E1/T1 Tests Menu - LLB The TEST indicator lights up. FOMi-E1/T1 digital interface is now connected to its own DTE data output via most of the modem circuits. 10. Perform this procedure at both ends. 11.
FOMi-E1/T1 Installation & Operation Manual Chapter 4. Troubleshooting & Diagnostics ➤ To perform a Remote Loopback test: 1. Press the CURSOR button to move to the Menu Type field. 2. Press the SCROLL button until Tests is displayed. 3. Press the CURSOR button to move to the LOC/REM field. 4. Press the SCROLL button to select the local modem or the remote modem. 5. Press the CURSOR button to move to the Menu Options field. 6. Press the SCROLL button until RLB is displayed. 7.
FOMi-E1/T1 Installation & Operation Manual Activation by a Remote User Chapter 4. Troubleshooting & Diagnostics Both LLB and RLB loopbacks can be operated from the local modem and performed on the local and on the remote modems (see Figures 4-6 and 4-7). This option is especially useful when there is an authorized technician at the local site and an unskilled user on the other side. Local FOMi-E1/T1 XMTR FIBER Remote FOMi-E1/T1 FIBER G.703 DATA RCVR LOCAL DATA TERMINAL RCVR FIBER FIBER G.
FOMi-E1/T1 Installation & Operation Manual Chapter 4. Troubleshooting & Diagnostics 8. To stop the test, press the SCROLL button until OFF is displayed and then press the ENTER button. The message WAIT... is displayed on the local modem LCD and the test is terminated. Internal BER Tester and Pattern FOMi-E1/T1 has a built-in BER Tester and Pattern Generator which, together Generator with the V.
FOMi-E1/T1 Installation & Operation Manual Chapter 4. Troubleshooting & Diagnostics 3. Press the CURSOR button to move to the LOC/REM field. 4. Press the SCROLL button to select the local modem or the remote modem. 5. Press the CURSOR button to move to the Menu Options field. 6. Press the SCROLL button until BERT is displayed. 7. Press the CURSOR button to move to the Parameters field. 8. Use the SCROLL button to toggle to ON. 9. To start the LLB test, press the ENTER button. The message WAIT...
Chapter 4. Troubleshooting & Diagnostics FOMi-E1/T1 Installation & Operation Manual 9. To start the LLB test, press the ENTER button. The message WAIT... is displayed on the local modem LCD, and then an asterisk appears next to the ON indication. 10. To start the RLB + BERT test, when the parameters field is set to ON press ENTER. The message WAIT... is displayed on the local modem LCD and then an asterisk appears next to the ON indication.
FOMi-E1/T1 Installation & Operation Manual Chapter 4. Troubleshooting & Diagnostics 8. Use the SCROLL button to toggle to ON. 9. To start the LEDS CHECK, press the ENTER button. The message WAIT... is displayed on the local modem LCD, and then an asterisk appears next to the ON indication. All the LEDs on the front panel should light. If management is inactive, the LOC CONFIG ONLY message will appear on the LCD. 10. A few seconds after completion of the check the LEDs will turn off. 11.
Chapter 4.
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