Black Box 39004 User Manual
  1. Manuals
  2. Brands
  3. Black Box Manuals
  4. Extender
  5. 39004
  6. User manual
Black Box 39004 User Manual

Black Box 39004 User Manual

T1 fiber optic line extender/simulator
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
T1 Fiber Optic Line Extender/Simulator
CUSTOMER
SUPPORT
INFORMATION
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
F O
R X
T X
R X
F O / S
C
I / F
D L
L L
P
L O O
MARCH 2000
39004
39005
T X

Advertisement

Table of Contents
loading

Related Manuals for Black Box 39004

Summary of Contents for Black Box 39004

  • Page 1 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 2 FCC INFORMATION 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 such interference when the equipment is...
  • Page 3 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR 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 4 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 5 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR General Safety Precautions Transport, Installation, and Operation • Avoid excessive vibration and shocks. • Avoid contact with water and dust. • Avoid excessive direct sunlight. • Ensure sufficient cooling. • Prevent loose items from falling into the device. Fiber Optics •...
  • Page 6 TRADEMARKS TRADEMARKS USED IN THIS MANUAL ® is a registered trademark of American Telephone and Telegraph Company. Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.

  • Page 7: Table Of Contents

    T1 FIBER OPTIC LINE EXTENDER/SIMULATOR Contents 1. Specifications ..........7 2.

  • Page 8: Specifications

    CHAPTER 1: Specifications 1. Specifications Maximum Distance—39004: 3 mi. (4.8 km) @ 16 dB; 39005: 24 mi. (38.6 km) @ 16 dB Speed—1.544 Mbps Interface—DTE: T1, G.703/DS1; Fiber: Dual ST ® multimode or single-mode Connectors—DB15 for DTE, dual ST for fiber Indicators and Buttons—(6) LEDs: TX, RX, FO/S, C, LL, DL;...

  • Page 9: Introduction

    T1 FIBER OPTIC LINE EXTENDER/SIMULATOR 2. Introduction 2.1 Description The T1 Fiber Optic Line Extender/Simulator lets you combine fiber optic technology with standard interfaces at 1.544 Mbps. The advantages are increased transmission distances and immunity to electrical interference. Connections between buildings become possible since no lightning currents can arise. 2.2 Features •...

  • Page 10: Connectors, Indicators, And Controls

    CHAPTER 3: Connectors, Indicators, and Controls 3. Connectors, Indicators, and Controls TX RX FO/S LL DL LOOP Figure 3-1. Front and Rear Panels. Table 3-1. Connectors, Indicators, and Controls Connector, Indicator, or Control TX LED: Transmitting binary 0 via fiber optic G.703 connector FO/S LED: Power/FO Link/sync LL LED: Unit in line loop mode*...

  • Page 11: Setup

    T1 FIBER OPTIC LINE EXTENDER/SIMULATOR 4. Setup Main board Figure 4-1. Location of Jumpers on the Printed Circuit Board.
  • Page 12 CHAPTER 4: Setup Table 4-1. Key, Jumper, and Switch Settings Number Setting Description Loop Mode Key: Press the key switches through the following operating modes: Normal operation, Digital loop, Remote loop. The unit enters loop mode when the distant modem gets switched to remote loop. Clock Source Internal Remote...
  • Page 13 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR Table 4-1 (continued). Key, Jumper, and Switch Settings Number Setting Description Sample mode for incoming intermediate frequency (I/F) data Data sampled on positive clock edge (std.) Data sampled on negative clock edge Interface Mode NT (Network Termination) TE (Terminal Equipment) Interface Pin 1 Potential Floating...
  • Page 14 CHAPTER 4: Setup Clock Mode Comments: • Internal: The clock is generated by the internal clock generator. • External: The clock is provided by the local equipment. • Remote: The local modem receives the clock via the link from the distant modem.

  • Page 15: Data Signals

    T1 FIBER OPTIC LINE EXTENDER/SIMULATOR 5. Data Signals Local fiber optic modem in normal mode Distant fiber optic modem Figure 5-1. Data Signals at Normal Mode. Local fiber optic modem in digital loop mode Distant fiber optic modem Figure 5-2. Data Signals at Digital Loop Mode.
  • Page 16 CHAPTER 5: Data Signals Local fiber optic modem switched Fiber optic modem forced to loop to remote loop mode mode by other modem Figure 5-3. Data Signals at Remote Loop/Line Loop Mode. Table 5-1. G.703 Pinout (Female) Signal Terminal End Network Termination Input Output...

  • Page 17: Appendix: Fiber Optic Planning Guidelines

    T1 FIBER OPTIC LINE EXTENDER/SIMULATOR Appendix: Fiber Optic Planning Guidelines A.1 Introduction Designing a fiber optic link means considering two main physical limitations: System attenuation and fiber optic dispersion. Attenuation results when properties of the fiber optic link reduce the intensity of the fiber optic signals.

  • Page 18: Fiber Optic Calculation

    APPENDIX: Fiber Optic Planning Guidelines A.2 Fiber Optic Calculation 1: A TTENUATION ONSIDERATIONS Figure A-1 shows the various elements of the fiber optic link that decrease light intensity. Depending on the real installation, you must subtract a series of attenuation (att.) values from the raw optic output level of the fiber optic transmitter.
  • Page 19 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR (max, cable [2] att.)=(fiber optic power budge) - (right part att.) = 17 dB - 12 dB = 5 dB. (max. cable [2] length) = (max.cable [2] att.)/(cable [2] att. factor) = 5 dB/3 dB/km = 5.6 km Example 2: Maximum length of cable [2] when connected directly (without splices, etc.): (max.

  • Page 20: Operation Diagram

    APPENDIX: Fiber Optic Planning Guidelines 2: O VERALL PERATION ONSIDERATIONS The operation diagram (Figure A-2) shows one example diagram and one blank diagram to be completed based on real values: 1. Draw horizontal lines at the min. and max. value of the fiber optic pulse width* of the affected units.
  • Page 21 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR Figure A-2. Operation Diagram...
  • Page 22 APPENDIX: Fiber Optic Planning Guidelines Use the example on the previous page as a reference when filling in information for your application below. Figure A-3. Your Application.
  • Page 23 © Copyright 2000. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...

This manual is also suitable for:

39005

Table of Contents