Related Manuals for Black Box ME550A-35
Summary of Contents for Black Box ME550A-35
- Page 1 © Copyright 1997. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...
- Page 2 Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX SUPPORT FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 INFORMATION Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com...
-
Page 3: Federal Communications Commission
FCC AND IC STATEMENTS FEDERAL COMMUNICATIONS COMMISSION INDUSTRY CANADA RADIO-FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection against... - Page 4 CAMPUS FIBER DRIVERS NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
- Page 5 NOM STATEMENT 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.
-
Page 6: Safety Warning
CAMPUS FIBER DRIVERS DISCLAIMERS This manual contains information proprietary to the manufacturer. No part of this publication may be reproduced in any form whatsoever without prior written approval. No representation or warranties for the fitness of these products for any purpose other than those specifically mentioned in this manual are made either by the manufacturer or its agents. -
Page 7: Table Of Contents
5.2 The Bit Error-Rate Tester (BERT) ........... 29 5.3 The Modem Self-Test ................ 30 5.4 Local Analog Loopback ..............30 5.5 Remote Digital Loopback ..............32 5.6 Local Digital Loopback ..............33 5.7 Contacting Black Box ............... 34 5.8 Shipping and Packaging ..............35... -
Page 8: Specifications
CAMPUS FIBER DRIVERS 1. Specifications Compliance — FCC Class A, IC Class/classe A Standards — Loopback tests: ITU-TSS V.54; BERT: ITU-TSS V.52 Interfaces — Line side: Fiberoptic: ME550 models: Multimode; ME551 models: LED-source single-mode; ME552 models: Laser-source single-mode; Device side: “–35”... - Page 9 CHAPTER 1: Specifications Receiver Sensitivity — ME550 models: –39 dBm; ME551 and ME552 models: –40 dBm 28 dBm Dynamic Range — Link Budget — ME550 models: 21 dBm; ME551 models: 22 dBm; ME552 models: 28 dBm Maximum Distance — Depends on quality of cable, how and where cable is installed, and (for Driver-to-DTE distance) interface and data rate: Between Driver and DTE: 50 ft.
- Page 10 CAMPUS FIBER DRIVERS 95,000 hours MTBF — Temperature Tolerance — 32 to 122˚F (0 to 50˚C) Humidity Tolerance — 0 to 90% noncondensing Power — From outlet through power cord and internal power supply: Models with just “A” in product code: Optimal Input: 115-VAC, 60 Hz, 43 mA;...
-
Page 11: Introduction
CHAPTER 2: Introduction 2. Introduction 2.1 General Overview The Campus Fiber Driver is a synchronous high-speed fiberoptic modem designed to enable communication between two V.35- or X.21-compliant data devices over a fiberoptic link. Pairs of Drivers extend the distance of high-speed transmission by creating a secure fiberoptic link that is immune to electrical interference and differential ground loops. -
Page 12: Features In Detail
CAMPUS FIBER DRIVERS 2.2 Features in Detail This section describes some of the main features of the Campus Fiber Driver, especially those involving uts configuration and its electronic circuitry. Refer to the block diagram in Figure 2-1 below. CDP to FIFOs BERT V.54 Circuits... -
Page 13: Sample Applications
CHAPTER 2: Introduction 2.2.2 D IAGNOSTICS If you need to test your Campus Fiber Driver system, you can activate various V.54-compliant loopbacks by pressing buttons on the Driver’s front panel or by toggling the signals on certain pins of the DTE interface. When you use the Campus Fiber Driver as a tail end to a digital network or multiplexor, set the V.54 DELAY jumpers ON in the Drivers located close to the digital network. - Page 14 CAMPUS FIBER DRIVERS Campus Fiber Campus Fiber Driver Set for Driver Set for External Clock External Clock Digital Service Network Computer Computer Fiber Fiber Link Link Campus Fiber Campus Fiber Driver Set for Driver Set for Recovered Clock Recovered Clock Figure 2-3.
-
Page 15: Installation
CHAPTER 3: Installation 3. Installation This chapter explains how to install your Campus Fiber Driver. After you install it, see Chapter 4 for how to operate it and Chapter 5 for how to test the system. 3.1 Placement Install the Campus Fiber Driver within 5 ft. (1.5 m) of an easily accessible, grounded AC outlet. - Page 16 CAMPUS FIBER DRIVERS Table 3-1. User-Configurable Options Element Function Possible Standard Settings Factory Setting Select the data rate in kilobits per second. Opt. 1 BIT RATE 0-1544 Dial 1-1536 2-768 3-384 4-2048 5-1024 6-512 7-256 8-128 9-64 64 Kbps A-112 B-56 Select the source of the Transmit timing signal: TIMING...
- Page 17 CHAPTER 3: Installation CHASS GND V.54 DELAY TIMING CARR PATT Figure 3-1. Circuit board of the Campus Fiber Driver.
- Page 18 CAMPUS FIBER DRIVERS (text continued from page 13) When you have everything at least tentatively decided, take these steps to set the unit’s internal controls: CAUTION! Make sure the Driver is disconnected from AC power before removing it from its housing. WARNING: HIGH VOLTAGE! Any adjustment, maintenance, and repair of the open instrument under voltage should be avoided as much as possible, and, when inevitable,...
-
Page 19: Installation In 19-Inch Racks (Optional)
CHAPTER 3: Installation 3.3 Installation in 19-Inch Racks (Optional) 3.3.1 O VERVIEW The Campus Fiber Driver can be installed in 19-inch racks. It is 1U (1.75", 4.4 cm) high and is slightly less than half as wide as the available mounting area. Two rack-adapter kits are available as special quotes: One kit provides the hardware necessary to install a single unit, and the other provides the hardware necessary to install two units side by side. - Page 20 CAMPUS FIBER DRIVERS 2. Using four included screws and flatwashers for each bracket, attach the two short brackets to the vacant sides of the Drivers. 3. Slide the two Drivers’ side rails into each other, fastening the two units together. 4.
- Page 21 CHAPTER 3: Installation Figure 3-3. Installing two units in a 19-inch rack.
-
Page 22: Cabling The Driver
CAMPUS FIBER DRIVERS 3.4 Cabling the Driver After you set the Campus Fiber Driver’s internal controls, the Driver is ready to be cabled for operation. Its electrical and optical connectors are located on its rear panel, as shown in Figures 3-4 and 3.5 below. These consist of a V.35 or X.21 female interface connector labeled “DTE,”... - Page 23 CHAPTER 3: Installation Table 3-2. Pinout of the V.35-Model Driver’s DTE Connector SIGNAL ITU-TSS LEAD V.35 NAME (ABBREV.) CIRCUIT TYPE Frame (Protective) Ground (FGND) Signal Ground (SGND) Send Data (SD) Receive Data (RD) Request to Send (RTS) Clear to Send (CTS) Data Set Ready (DSR) Data Terminal Ready (DTR) Received Line Signal Detector (RLSD),...
- Page 24 CAMPUS FIBER DRIVERS Table 3-3. Pinout of the X.21-Model Driver’s DTE Connector SIGNAL ITU-TSS LEAD X.21 NAME (ABBREV.) CIRCUIT TYPE Shield (Ga) Signal Ground (G) Transmit Data (T) Receive Data (R) Control (C) Indication (I) External Timing (E) Signal Timing (S) *In true standard X.21, these pins are earmarked for the Byte Timing (B) signal, which is not normally used.
- Page 25 V.36/EIA RS-449 (DB25 connector cabled to a DB37 connector), or ITU-TSS G.703 (5-screw terminal block). If you would like a Driver with one of these interfaces, call Black Box for technical support. To connect the Driver to a V.35 or X.21 DTE or DCE, use an appropriate cable that is pinned correctly (straight-through for DTE, properly crossed for DCE).
- Page 26 NOTE Versions of the Driver that operate from –48 VDC power are available as special quotes. If you would like such a Driver, call Black Box for technical support. After you have attached the power cord and have made sure that the cord is properly grounded, you can plug the power cord into a working mains outlet.
-
Page 27: Operation
CHAPTER 4: Operation 4. Operation This chapter contains a list of the Campus Fiber Driver’s controls and indi- cators and their functions, as well as a brief description of how to operate the unit. Installation procedures must be completed and checked before you attempt to operate the Driver. - Page 28 CAMPUS FIBER DRIVERS Table 4-1. The Controls The Item labels in this table correspond to those in Figure 4-1. ITEM CONTROL FUNCTION Pressing the local digital loopback button causes the local Driver to loop received data and clock to its transmitter. Data Set Ready goes low. Pressing the local analog loopback (V.54 Loop 3) button causes the local Driver to loop its transmitter output back to its receiver.
-
Page 29: Operating Procedure
CHAPTER 4: Operation 4.2 Operating Procedure The Campus Fiber Driver operates entirely unattended, although we recommend that you monitor its LEDs occasionally. To turn the unit off, you must unplug its power cord from the outlet—it has no power switch. If you want to reconfigure the Driver for a different type of operation, make very sure to unplug the unit first. -
Page 30: Troubleshooting
CAMPUS FIBER DRIVERS 5. Troubleshooting This chapter explains system-test and fault-isolation procedures. The Campus Fiber Driver provides local loopback and remote digital loopback in compliance with the V.54 standard. Unless you disable them, the unit’s loopback tests can be activated manually from the unit’s front panel, and the local analog and remote digital loopbacks can be activated electronically through the DTE connection. - Page 31 CHAPTER 5: Troubleshooting PATT DEPRESSED DEPRESSED PATTERN XMTR GENERATOR PATTERN RCVR TESTER ERROR Figure 5-1. BERT using loops (modem self-test shown). PATT DEPRESSED PATT (DISCONNECTS DEPRESSED EXTERNAL DTE) PATTERN PATTERN GENERATOR TESTER ERROR PATTERN PATTERN TESTER GENERATOR ERROR Figure 5-2. Two Drivers doing end-to-end BERT.
-
Page 32: The Modem Self-Test
CAMPUS FIBER DRIVERS 5.3 The Modem Self-Test To verify that the Campus Fiber Driver itself is operating correctly, initiate the modem self-test by pressing the PATT and ANA buttons (refer to Figure 5-1 on the previous page): 1. Press ANA to start local analog loopback. Both the TEST and DCD LEDs should light. - Page 33 CHAPTER 5: Troubleshooting • Use the Driver’s internal BERT. Press the PATT button.The ERR LED should light briefly just to confirm that the LED is working, and then the test will proceed. If errors are detected, the ERR LED will be continuously lit (if the errors are continuous) or will blink (for intermittent errors).
-
Page 34: Remote Digital Loopback
CAMPUS FIBER DRIVERS 5.5 Remote Digital Loopback Activate the remote digital loopback test by pressing the REM button or (on V.35 models) by raising the level of the Remote Loopback signal received by the Campus Fiber Driver’s DTE connector (Pin HH). This test involves creating an outbound loopback at the remote Driver (see Figure 5-5 on the next page). -
Page 35: Local Digital Loopback
CHAPTER 5: Troubleshooting DEPRESSED DATA XMTR RCVR LOCAL REMOTE DATA DATA TERMINAL TERMINAL RCVR XMTR DATA Figure 5--5. Remote digital loopback. 5.6 Local Digital Loopback Activate the local digital loopback test by pressing the DIG button on the Campus Fiber Driver’s front panel. This test involves creating an outbound loopback at the local Driver (see Figure 5-6 on the next page). -
Page 36: Contacting Black Box
If you determine that your Campus Fiber Driver is malfunctioning, do not attempt to alter or repair the unit. It contains no user-serviceable parts. Call Black Box Technical Support at 724- 746-5500. Before you do, make a record of the history of the problem. We will be... -
Page 37: Shipping And Packaging
• If you are shipping the Driver for repair, make sure you include its power cord. If you are returning the Driver, make sure you include everything you received with it. Before you ship, contact Black Box to get a Return Materials Authorization (RMA) number. - Page 38 NOTES...