Black Box ME0001C-10BT User Manual
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Black Box ME0001C-10BT User Manual

Black Box ME0001C-10BT User Manual

2-wire idsl line driver rack cards
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2-Wire IDSL Line Driver Rack Cards
CUSTOMER
SUPPORT
INFORMATION
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
NOVEMBER 2001
ME0001C-10BT
ME0001C-G703
ME0001C-RS530
ME0001C-V24
ME0001C-V35
ME0001C-X21

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  • Page 1 Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) SUPPORT FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 INFORMATION Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com...
  • Page 2 FCC AND IC RFI 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 B of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference when the equipment is...
  • Page 3 2-WIRE IDSL LINE DRIVER RACK CARDS 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 2-WIRE IDSL LINE DRIVER RACK CARDS TRADEMARKS USED IN THIS MANUAL DECnet™ is a trademark of Digital Equipment Corporation. IPX™ is a trademark of Novell Incorporated. NetBIOS ® is a registered trademark of International Business Machines Corporation. VT100™ is a trademark of Compaq. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.

  • Page 6: Table Of Contents

    CONTENTS Contents Chapter Page 1. Specifications ........... . 7 2.

  • Page 7: Chapter Page

    2-WIRE IDSL LINE DRIVER RACK CARDS Chapter Page Appendix D G.703 Rear Card Module ....... . 49 D.1 Description .

  • Page 8: Specifications

    CHAPTER1: Specifications 1. Specifications Transmission Format: Synchronous or asynchronous Transmission Line: One- or two-pair unconditioned twisted wire Clocking: Internal, External, or Receive Recover Table 1-1. Maximum distance for all data rates. Distance Cable 10.8 mi (17.4 km) 19 AWG (0.9 mm) 7.2 mi (11.6 km) 22 AWG (0.64 mm) 5 mi (8 km)

  • Page 9: Introduction

    2-WIRE IDSL LINE DRIVER RACK CARDS 2. Introduction 2.1 Description The 2-Wire IDSL Line Driver Rack Card allows synchronous or asynchronous data to be transmitted up to 11 miles (17.7 km) over one or two twisted pair (2- or 4-wire). Supporting synchronous speeds up to 128 kbps and asynchronous speeds up to 38.4 kbps, the Card is perfect for LAN interconnection or high-speed Internet links.

  • Page 10: Snmp Management

    CHAPTER 2: Introduction 2.3 SNMP Management The QuikConnect IDSL Line Driver (ME0009A) is SNMP manageable when connected to a rackmounted 2-Wire IDSL Line Driver Rack Card (ME0001C). SNMP management is enabled through a Managed Micro Rack SNMP/HTTP Card (RM261C-SNMP) located in the 16-Port Managed Micro Rack (RM260). HTTP/HTMP M ANAGEMENT The SNMP/HTTP Card maintains HTML pages that can be viewed through a Web...

  • Page 11: Configuration

    2-WIRE IDSL LINE DRIVER RACK CARDS 3. Configuration This chapter describes the hardware and software configuration switches and jumpers. Refer to the Managed Micro Rack SNMP/HTTP Card (RM261C-SNMP) users’ manual for SNMP options. 3.1 Hardware Setup The 2-Wire IDSL Line Driver front card defaults to the use of hardware switches for configuration.

  • Page 12: Reversible Interface Driver Board

    CHAPTER 3: Configuration Figure 3-2 shows the orientation of the DIP switches with respect to the ON and OFF positions. Figure 3-2. Closeup of configuration switches. NOTE The ON position is oriented toward the front of the Card. 3.1.1 R EVERSIBLE NTERFACE RIVER...

  • Page 13: Configuration Switch S1

    2-WIRE IDSL LINE DRIVER RACK CARDS Follow the instructions below to select the correct interface for your application: 1. With the 2-Wire IDSL Line Driver Rack Card pulled out of the rack chassis, locate the driver board on the top of the front card. 2.
  • Page 14 CHAPTER 3: Configuration Switches S1-1 and S1-2: Data Rate Use Switches S1-1 and S1-2 with Switch S5-1 to determine the operable sync or async bit rate for the 2-Wire IDSL Line Driver Rack Card. The settings shown in Table 3-2 are the only applicable bit rate settings. Table 3-2.
  • Page 15 2-WIRE IDSL LINE DRIVER RACK CARDS Switch S1-4: Management Setting When setting the SNMP management, the DTE rate switches (S1-1, S1-2, and S2-1) need to be in the ON position. Therefore, to set a Rack Card to SNMP management mode, the following switches have to be at the ON position: S1-1, S1-2, S5-1, and S1-4.

  • Page 16: Configuration Switch S2

    CHAPTER 3: Configuration Table 3-5. Remote Digital Loopback Test. S1-8 Setting Response to RDL request enabled Response to RDL request disabled 3.1.3 C ONFIGURATION WITCH The 2-Wire IDSL Line Driver Rack Cards may be configured by a menu-driven software system when used with the Managed Micro Rack Control Module, VT100™...

  • Page 17: Configuration Switch S5

    2-WIRE IDSL LINE DRIVER RACK CARDS Switches S2-1 through S2-4: Control Port Address— LSD Use Switches S2-1 through S2-4 to set the least-significant digit of the ME0001C control port address. For example, using Table 3-6, if the desired address is “63”, the “3”...

  • Page 18: Configure The Software Switches

    CHAPTER 3: Configuration Table 3-8. 2-wire or 4-wire operation. S5-2 Setting Description 2-wire 2-wire operation 4-wire 4-wire operation Switch S5-3: Enable LAL and RDL from DTE Use Switch S5-3 to enable or disable the Local Analog Loopback and Remote Digital Loopback control from the DTE. Table 3-9.
  • Page 19 5. After the 2-Wire IDSL Line Driver Rack Card is powered on, the control port will send out this message: Model: ME0001C software version xx Black Box Corporation Copyright © 2000 6. Press [ESC] on the terminal. 7. The 2-Wire IDSL Line Driver Rack Card will then display the Main Menu screen.
  • Page 20 CHAPTER 3: Configuration IDSL L ONFIGURE THE OCAL RIVER To configure the local Card, make a selection from the following Main Menu. QUIKCONNECT IDSL LINE DRIVER LOCAL CONFIGURATION MAIN MENU 1. DISPLAY ACTIVE CONFIGURATION 2. DISPLAY HARDWARE CONFIGURATION 3. DISPLAY SOFTWARE CONFIGURATION 4.
  • Page 21 2-WIRE IDSL LINE DRIVER RACK CARDS Main Menu Option 2: Display Hardware Configuration Select Option 2 to display the configuration of the hardware DIP switches. To use the Hardware Configuration for the Active Configuration, select Main Menu Option 5. Then select “Use Hardware DIP-Switches.” Finally, select Main Menu Option 8 to save.
  • Page 22 CHAPTER 3: Configuration Main Menu Option 4: Setup Software Configuration Select Option 4 to edit the software configuration of the 2-Wire IDSL Line Driver Rack Card. To save changes after editing the software configuration, select Main Menu Option 5, then select “Use Software Switches” and then select Main Menu Option 8 to save.
  • Page 23 2-WIRE IDSL LINE DRIVER RACK CARDS 2. Data Format Select Option 2 in the Software Configuration menu to select the sync data format. DATA FORMAT—ESC TO SOFTWARE CONFIG MENU 1. SYNCHRONOUS/ASYNCHRONOUS Figure 3-10. Data format. 3. Clock Mode Select Option 3 in the Software Configuration menu to select the sync clock mode. Figure 3-11.
  • Page 24 CHAPTER 3: Configuration 4. DSR During Local Line Loop Select Option 4 in the Software Configuration menu to configure the behavior of the local Data Set Ready (DSR) signal during the Local Line Loop test mode. Figure 3-12. DSR during local line loop. 5.
  • Page 25 2-WIRE IDSL LINE DRIVER RACK CARDS 6. DTE Controlled Local Line Loop Select Option 6 in the Software Configuration menu to instruct the 2-Wire IDSL Line Driver Rack Card to either respond or ignore Local Line Loop requests from the DTE. To instruct the Card to respond to Local Line Loop requests from the DTE, select Enable (Option 1).
  • Page 26 CHAPTER 3: Configuration 8. 2-Wire/4-Wire Selection Select Option 8 in the Software Configuration menu to configure 2-Wire or 4-Wire operation. 2-Wire/4-Wire Selection 1. 4-Wire Mode 2. 2-Wire Mode Figure 3-16. 2-Wire/4-Wire selection. Main Menu Option 5: Select Hardware/Software Control Option 5 from the Main Menu selects whether the 2-Wire IDSL Line Driver Rack Card will use the hardware switch settings or the software switch settings for its active configuration.
  • Page 27 2-WIRE IDSL LINE DRIVER RACK CARDS Main Menu Option 6: Display Modem Status Select Option 6 from Main Menu to display the Modem Status. Press Return on the keyboard to update and redisplay the screen. Valid 2-Wire IDSL Line Driver Rack Card Handshake status conditions are listed following Figure 3-18.
  • Page 28 CHAPTER 3: Configuration Main Menu Option 7: Test Modes Select Option 7 from the Main Menu to select the test mode status of the ME0001C. The 2-Wire IDSL Line Driver test mode settings help to verify the integrity of the data link and isolate communication difficulties. Figure 3-19.

  • Page 29: Configure The Rear Interface Card

    2-WIRE IDSL LINE DRIVER RACK CARDS • Remote Digital Loop and 511: Initiates the Remote Digital Loopback test and starts the internal 511 generator and detectors. • Remote Digital Loop and 511 with errors: Initiates the Remote Digital Loopback test and starts the 511 test patterns. In this test, the 511 pattern generator will inject initial errors into the data stream.
  • Page 30 CHAPTER 3: Configuration Figure 3-21. DB25/RJ-45 strap locations. Table 3-11 provides an overview of interface strap functions for the rear interface cards. Following the table overview are detailed descriptions of each strap’s function. Table 3-11. Interface card strap summary. Strap Function Position 1 &...

  • Page 31: M/34/Rj-45 Rear Card (V.35) Strap Settings

    2-WIRE IDSL LINE DRIVER RACK CARDS Position 1 & 2 = DTE Shield (Pin 1) and FRGND connected Position 2 & 3 = DTE Shield (Pin 1) and FRGND not connected SGND and FRGND (JB4) In the connected position, this strap links DB25 pin 7 (signal ground) and frame ground.

  • Page 32: Db15 Rear Card (X.21) Strap Settings

    CHAPTER 3: Configuration SGND and FRGND (JB4) In the connected position, this strap links signal ground and frame ground. In the open position, signal ground is disconnected from frame ground. Position 1 & 2 = SGND and FRGND Connected* Position 2 & 3 = SGND and FRGND Not Connected *Default setting 3.3.3 DB15 R (X.21) S...
  • Page 33 2-WIRE IDSL LINE DRIVER RACK CARDS Table 3-12. Interface card strap summary. Strap Function Position 1 & 2 Position 2 & 3 DTE Shield (Pin 1) and FRGND Connected* Open SGND and FRGND (Pin 8) Connected* Open *Default setting DTE Shield (DB15 Pin 1) and FRGND (JB3) In the connected position, this strap links DB15 pin 1 and frame ground.
  • Page 34 CHAPTER 3: Configuration Installing the X.21 Daughterboard onto the X.21 Line Driver Card Figure 3-24 shows the X.21 daughterboard, DCE/DTE selector, and jumper (JP1) location with respect to the rack card. Following Figure 3-24 are guidelines for the installation of the X.21 daughterboard, setting for DCE/DTE, and a brief description of Jumper JP1.
  • Page 35 2-WIRE IDSL LINE DRIVER RACK CARDS DCE/DTE Selector for the X.21 Daughterboard The X.21 daughterboard can be set up as a DCE (default) or DTE device. The DCE/DTE selector must be installed in the X.21 daughterboard for any configuration. The following information describes the setting for DCE/DTE. •...

  • Page 36: Installation

    WARNING There are no user-serviceable parts in the power-supply section of the Managed Micro Rack Chassis. Only qualified service personnel should change the voltage settings and replace the fuses. Contact Black Box Technical Support at 724-746-5500 for more information.

  • Page 37: Installing The Card Into The Chassis

    2-WIRE IDSL LINE DRIVER RACK CARDS 4.2 Installing the Card into the Chassis The 2-Wire IDSL Line Driver Rack Card is comprised of a front card and a rear card. The two cards meet inside the rack chassis and plug into each other via mating 50-pin card-edge connectors.

  • Page 38: Connect To The Twisted-Pair Interface

    CHAPTER 4: Installation 4.3.3 C ONNECT THE WISTED NTERFACE The 2-Wire IDSL Line Driver Rack Card supports communication between two DTE devices at distances to 5 miles (8 km) over 24-AWG (0.5-mm) twisted-pair wire. There are two essential requirements for installing the Card: 1.

  • Page 39: Connect To The Control Port Interface

    2-WIRE IDSL LINE DRIVER RACK CARDS 4. Proper 4-wire pairing between the two Line Drivers is as follows: Signal Pin # Pin # Signal 4 - - - - - - - - - - - - - - - - - - 3 5- - - - - - - - - - - - - - - - - - - 6 3 - - - - - - - - - - - - - - - - - - 4 6 - - - - - - - - - - - - - - - - - - 5...

  • Page 40: Operation

    CHAPTER 5: Operation 5. Operation Once the 2-Wire IDSL Line Driver Rack Card is properly configured and installed, it should operate transparently. This chapter describes functions of the LED status indicators and the use of the built-in loopback test modes. 5.1 LED Status Indicators The 2-Wire IDSL Line Driver Rack Card features twelve front-panel LEDs that monitor power, the DTE signals, network connection, and test modes.

  • Page 41: Test Modes

    2-WIRE IDSL LINE DRIVER RACK CARDS • ER glows red to indicate the likelihood of a bit error in the received signal. During the 511 or 511E test, ER flashes to indicate that the test-pattern detector has detected a bit error. •...

  • Page 42: Remote Digital Loopback (Rdl)

    CHAPTER 5: Operation Once LLB is activated, the Card’s transmitter output is connected to its own receiver. Data is also looped back to the line. The TM LED should be lit. 2. Verify that the data terminal equipment is operating properly and can be used for a test.

  • Page 43: Ber) Test-Pattern Generator

    2-WIRE IDSL LINE DRIVER RACK CARDS 2. Perform a V.52 BER test as described in Section 5.2.3. If the BER test equipment indicates a fault and the local line loopback test was successful for both Cards, you may have a problem with the twisted-pair line between the modems.

  • Page 44: Appendix A. Terminal Interface Pin Assignments

    APPENDIX A: Terminal Interface Pin Assignments Appendix A. Terminal Interface Pin Assignments Table A-1. M/34 female connector—DCE (V.35 interface). Pin # Signal B - - - - - - - - - - - - - - - - - - SGND (Signal Ground) C - - - - - - - - - - - - - - - - - - RTS (Request to Send) D - - - - - - - - - - - - - - - - - - CTS (Clear to Send) E - - - - - - - - - - - - - - - - - - DSR (Data Set Ready)
  • Page 45 2-WIRE IDSL LINE DRIVER RACK CARDS Table A-2. DB25 female connector—DCE (RS-232 interface). Pin # Signal 1 ........FC (Frame Ground) 2 ........TD (Transmit Data) 3 ........RD (Receive Data) 4 ........RTS (Request to Send) 5 ........CTS (Clear to Send) 6 ........DSR (Data Send Ready) 7 ........SGND (Signal Ground) 15 ........TC (Transmit Timing-A) 17 ........RC (Receive Timing)
  • Page 46 APPENDIX A: Terminal Interface Pin Assignments Table A-3. G.703, RJ-45 interface. G.703 Number Network Signal 1 ......1 (RX+) 2 .
  • Page 47 2-WIRE IDSL LINE DRIVER RACK CARDS Table A-5. X.21 interface pin description, DB15 female connector (DTE/DCE configuration). Pin # Interface 1- - - - - - - - - - - - - - - - - - - - - Frame Ground 2- - - - - - - - - - - - - - - - - - - - - T (Transmit Data-A) 3- - - - - - - - - - - - - - - - - - - - - C (Control-A) 4- - - - - - - - - - - - - - - - - - - - - R (Receive Data-A)

  • Page 48: Appendix B. Control Port Pin Assignment

    APPENDIX B: Control Port Pin Assignment Appendix B. Control Port Pin Assignment (RJ-45 Connector on RM262C Card) Pin Function RJ-45 Pin Number Transmit Data (from DTE)........7 Receive Data (to DTE)........6 Ground.............5...

  • Page 49: Appendix C. Line Interface Pin Assignment (Rj-45 Connector)

    2-WIRE IDSL LINE DRIVER RACK CARDS Appendix C. Line Interface Pin Assignment (RJ-45 Connector) Pin Number Signal 1...........N/C (No Connection) 2...........N/C (No Connection) 3...........4 Wire Tip 4...........Tip 5............Ring 6............4 Wire Ring 7............N/C (No Connection) 8............N/C (No Connection)

  • Page 50: Appendix D G.703 Rear Card Module

    APPENDIX D: G.703 Rear Card Module Appendix D. G.703 Rear Card Module D.1 Description The G.703 Rear Card Module provides IDSL Line Drivers and Rack Cards with an interface to the G.703 PCM network. With the G.703 Rear Card Module, you can achieve high-speed G.703 network extension, dedicated high-speed Internet access, or remote LAN access.

  • Page 51: Dip-Switch Configuration

    2-WIRE IDSL LINE DRIVER RACK CARDS D.3 DIP-Switch Configuration The module features an eight-position DIP switch mounted on the rear of the printed circuit board. Use these switches to configure G.703 operational and timing modes. Figure D-2 shows the position of the DIP switches on the board. DIP switches Figure D-2.
  • Page 52 APPENDIX D: G.703 Rear Card Module Table D-1. Operation mode. Setting Clear Channel Mode Octet Timing Mode Switch S3: Timing Mode The setting of Switch S3 determines the source of the system timing. The system timing may be provided by: 1.

  • Page 53: Installing The Rear Card And Front Function Card

    2-WIRE IDSL LINE DRIVER RACK CARDS Switch S6: Operation Mode In some cases, you must include bi-polar violations in the AMI structure when operating in clear channel (64 kbps) mode. This is determined by communications or terminal equipment external to the Card. Use Switch S6 to configure the unit to transmit G.703 data to the network with or without BPVs.

  • Page 54: Making Interface Connections

    APPENDIX D: G.703 Rear Card Module D.5 Making Interface Connections The module provides access to a 64-kbps co-directional G.703 PCM network. Figure D-3 shows the position of the G.703 interface and the line interface of the G.703 rear card. This section describes how to connect the G.703 interface and the line interface.

  • Page 55: Connecting To A G.703 Pcm Network Channel

    2-WIRE IDSL LINE DRIVER RACK CARDS D.5.1 C G.703 PCM N ONNECTING TO A ETWORK HANNEL The 120-ohm RJ-45 port on a G.703 rear card is pre-wired for direct connection to the G.703 PCM network. Connect the RJ-45 jack provided by your digital service carrier to the 120-ohm G.703 interface on the card using a straight-through twisted-pair cable between 19 and 26 AWG (0.4 mm to 0.9 mm, inversely).

  • Page 56: Connecting The Line Interface

    APPENDIX D: G.703 Rear Card Module D.5.2 C ONNECTING THE NTERFACE Two essential requirements for connecting the line interface on the G.703 rear card include: 1. These units work in pairs. Both units at the end of the twisted pair must have the proper 2-wire/4-wire setting.

  • Page 57: Two-Wire Cable Connection Via Rj-45

    2-WIRE IDSL LINE DRIVER RACK CARDS D.5.3 T RJ-45 ABLE ONNECTION VIA The line interface port on the Card’s twisted-pair interface is polarity insensitive and is wired for a two-wire interface. Proper two-wire pairing between the two line drivers is shown in Table D-3. Table D-3.

  • Page 58: Appendix E. 10Base-T Ethernet Bridge Module

    APPENDIX E: 10BASE-T Ethernet Bridge Module Appendix E. 10BASE-T Ethernet Bridge Module E.1 Description The Ethernet Bridge Module installs in the Managed Micro Rack system to provide seamless Ethernet LAN extension. The Module bridges two physically separate Ethernet LANs at the MAC level. Operation of the Module is transparent to higher network level protocols such as TCP/IP, DECnet™, NetBIOS ®...

  • Page 59: Configuration

    2-WIRE IDSL LINE DRIVER RACK CARDS E.2 Configuration The 10BASE-T Ethernet Rear Card Module plugs into the ME0001C and ME0004C Line Drivers to provide Ethernet LAN extension. The Ethernet Card has no switches or jumpers and does not need to be configured. However, factors such as the type of medium, throughput across the link, and clocking mode must be determined by the settings of the baseband Line Drivers (ME0001C and ME0004C).

  • Page 60: Connecting The Interface Driver Board

    APPENDIX E: 10BASE-T Ethernet Bridge Module E.3 Connecting the Interface Driver Board Included in your 10BASE-T Ethernet Bridge Module package is an interface driver board that allows you to configure your front function card for Ethernet operation. Figure E-2 shows the interface driver board connected to a ME0003C or ME0004C front function card.

  • Page 61: Installing The Rear Interface Card And The Front Function Card

    2-WIRE IDSL LINE DRIVER RACK CARDS E.4 Installing the Rear Interface Card and the Front Function Card See Section 4.2. E.5 Connecting to the 10BASE-T Ethernet Port The 10BASE-T Ethernet Rear Card module provides line side connections through an RJ-45 connector. Figure E-3 shows the rear panel and the locations of the connectors.

  • Page 62: Connecting The 10Base-T Ethernet Port To A Hub

    APPENDIX E: 10BASE-T Ethernet Bridge Module - - - - - - - - - - - - - - - - - 1 TD+ (data output from ME0001C) - - - - - - - - - - - - - - - - - 2 TD- (data output from ME0001C) - - - - - - - - - - - - - - - - - 3 RD+ (data input to ME0001C) - - - - - - - - - - - - - - - - - 4 Not connected - - - - - - - - - - - - - - - - - 5 Not connected...

  • Page 63: Connecting The 10Base-T Ethernet Port To A Pc (Dte)

    2-WIRE IDSL LINE DRIVER RACK CARDS E.5.2 C 10BASE-T E PC (DTE) ONNECTING THE THERNET ORT TO A The rear card interface is configured as DTE (Data Terminal Equipment). If you want to connect the rear card to another DTE device such as a 10BASE-T network interface card in a PC, you must construct a 10BASE-T crossover cable as shown in Figure E-6.

  • Page 64: Operation

    APPENDIX E: 10BASE-T Ethernet Bridge Module - - - - - - - - - - - - - - - - - 1 Not connected - - - - - - - - - - - - - - - - - 2 Not connected - - - - - - - - - - - - - - - - - 3 (4-wire RX-) - - - - - - - - - - - - - - - - - 4 (2-wire Tip) (4-wire TX+) - - - - - - - - - - - - - - - - - 5 (2-wire Ring) (4-wire TX-)

  • Page 65: Status Indicators

    2-WIRE IDSL LINE DRIVER RACK CARDS E.6.2 LED S TATUS NDICATORS The 10BASE-T Ethernet rear card features two LEDs that monitor general operating status and the 10BASE-T twisted-pair link integrity. Figure E-8 shows the LEDs located directly beneath the RJ-45 jack. Following Figure E-8 is a description of each LED’s function.
  • Page 66 APPENDIX E: 10BASE-T Ethernet Bridge Module 7 pulses = WAN receive frame(s) aborted 8 pulses = Detected WAN receive frame(s) with bad CRC 9 pulses = Detected LAN receive frame(s) too large 10 pulses = Detected LAN receive frame(s) not Octet aligned 11 pulses = Detected LAN receive frame(s) with bad CRC After a status code is displayed eight times and the associated condition is...
  • Page 67 © Copyright 2001. 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:

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