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Black Box ME0005A-10BT Manual

Black Box ME0005A-10BT Manual

2-wire short-range dsl line driver (mdsl)
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NOVEMBER 2001
ME0005A-10BT
2-Wire Short-Range DSL Line Driver
(mDSL)
CUSTOMER
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

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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/CE NOTICE 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.
  • Page 3 2-WIRE SHORT-RANGE DSL LINE DRIVER (MDSL) 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 SHORT-RANGE DSL LINE DRIVER (MDSL) TRADEMARKS USED IN THIS MANUAL Cisco is a registered trademark of Cisco Systems. ® DECnet™ is a trademark of Digital Equipment Corporation. Novell ® is a registered trademark, and IPX™ is a trademark, of Novell Incorporated.

  • Page 6: Table Of Contents

    CONTENTS Contents Chapter Page 1. Specifications ........... . 6 1.1 General .

  • Page 7: Specifications

    2-WIRE SHORT-RANGE DSL LINE DRIVER (MDSL) 1. Specifications 1.1. General Clocking Modes: Internal or Receive Recovered DTE Rate: All 64-kbps increments from 64 to 2304 kbps Diagnostics: V.52-compliant (511/511E) pattern generator and detector with error injection mode and Remote Loopback control by a single front-panel switch Configuration: Externally accessible DIP switches or SNMP/HTTP managed through the Managed Micro Rack SNMP/HTPP Card (part number RM261C-SNMP)

  • Page 8: Ethernet Specifications

    CHAPTER 1: Specifications 1.2 Ethernet Specifications Connector: RJ-45, 10BASE-T 802.3 Ethernet Protocol: PPP (RFC 1661) with Bridging Control (RFC 1638) Address Aging: Entries are deleted after 8 minutes of inactivity Frame Latency: 1 frame Frame Buffer: 512 frames Ethernet Physical Connection: Pin 1 TD Data +, Pin 2 TD Data -, Pin 3 RD Data +, Pin 6 RD Data +, Pins 4, 5, 7, 8 no connection...

  • Page 9: Introduction

    2-WIRE SHORT-RANGE DSL LINE DRIVER (MDSL) 2. Introduction 2.1 Description The 2-Wire Short-Range Line Driver (mDSL) is a multi-rate DSL modem that provides seamless MAC Layer connectivity between two peered 10BASE-T LANs. Enterprise users no longer need to hassle with a bridge and a CSU/DSU or recurring leased-line costs.

  • Page 10: Ppp Operational Background

    CHAPTER 3: PPP Operational Background 3. PPP Operational Background PPP is a protocol used for multiplexed transport over a point-to-point link. PPP operates on all full-duplex media. It’s a symmetric peer-to-peer protocol, which can be broken into three main components: 1.
  • Page 11 2-WIRE SHORT-RANGE DSL LINE DRIVER (MDSL) Figure 3-1 shows a typical Cisco router with a serial interface configured as a PPP ® half-bridge. The router serial interface uses a remote device that supports PPP bridging to function as a node on the remote Ethernet network. The serial interface on the Cisco router will have an IP address on the same Ethernet subnet as the bridge.
  • Page 12 CHAPTER 3: PPP Operational Background For example, the customer site is assigned the addresses 192.168.1.0/24 through 192.168.1.1/24. The address 192.168.1.1/24 is also the default gateway for the remote network. The above settings remove any routing/forwarding intelligence from the CPE. The associated Cisco configuration will set serial interface (s0) to accommodate half-bridging for the example in Figure 3-1.

  • Page 13: Configuration

    Other configuration parameters remain in the default setting. Follow the instructions below to activate Plug-and-Play between CO (mDSL Rack Card, ME0004C) and CP (mDSL Line Driver, ME0005A-10BT) units: 1. Set the mDSL Rack Card (CO) to either Internal or External clocking mode as defined by the application.

  • Page 14: Configuring The Hardware Dip Switches

    CHAPTER 4: Configuration When the CO and CP units connect over DSL, the CP will enter a predefined default configuration (Receive Recovered Clocking). During the negotiation process between the units, the CO unit will configure the DTE rate/line rate on the CP unit as defined by the settings of the CO unit.

  • Page 15: Configuration Dip-Switch S2

    2-WIRE SHORT-RANGE DSL LINE DRIVER (MDSL) The two sets of DIP switches on the underside of the mDSL Line Driver are called S2 and S3. As Figure 4-3 shows, the orientation of all DIP switches is the same with respect to ON and OFF positions. Figure 4-3.

  • Page 16: Configuration Dip-Switch S3

    CHAPTER 4: Configuration Switches S2-6 and S2-7: Clock Mode Use Switches S2-6 and S2-7 to configure internal or receive recover (clocking derived from the remote mDSL Line Driver across the DSL span) settings. One Line Driver (typically the CO, or “Central Office” unit) will be set for internal clock.
  • Page 17 2-WIRE SHORT-RANGE DSL LINE DRIVER (MDSL) Switch S3-1 through S3-6: DTE Rate Use Switch S3-1 through S3-6 to provision bandwidth to the LAN in 64-kbps increments up to 2.304 Mbps. Peak bandwidth utilization on the local domain on an Ethernet LAN runs typically between 15% to 20% (1.5 Mbps to 2 Mbps) of the maximum bit rate of 10 Mbps.
  • Page 18 CHAPTER 4: Configuration Table 4-4 (continued). Bandwidth settings. S3-1 S3-2 S3-3 S3-4 S3-5 S3-6 DTE Rate (kbps) 1408 1472 1536 1600 1664 1728 1792 1856 1920 1984 2048 2112 2176 2240 2304 NOTE The actual line rate of the Line Driver is determined by the selection of the DTE rate.
  • Page 19 2-WIRE SHORT-RANGE DSL LINE DRIVER (MDSL) Switch S3-8: Reserved Switch S3-8 is reserved for factory use and must remain in the On position.

  • Page 20: Installation

    CHAPTER 5: Installation 5. Installation When the mDSL Line Driver has been properly configured, it may be connected to the DSL twisted-pair interface, the 10BASE-T Ethernet Interface, and the power source. This section describes these connections. 10BASE-T interface interface Power Interface Figure 5-1.

  • Page 21: Connecting The 10Base-T Ethernet Port To A Pc (Dte)

    2-WIRE SHORT-RANGE DSL LINE DRIVER (MDSL) 1 - - - - - - - - - - - - - - - - 1 Not connected 2 - - - - - - - - - - - - - - - - 2 Not connected 3 - - - - - - - - - - - - - - - - 3 Not connected 4 - - - - - - - - - - - - - - - - 4 (2-wire Tip) 5 - - - - - - - - - - - - - - - - 5 (2-wire Ring)

  • Page 22: Connecting The 10Base-T Ethernet Port To A Hub (Dce)

    5 - - - - - - - - - - - - - - - - 5 Not connected 6 - - - - - - - - - - - - - - - - 6 RD - (data input to ME0005A-10BT)

  • Page 23: Operation

    2-WIRE SHORT-RANGE DSL LINE DRIVER (MDSL) 6. Operation When the mDSL Line Driver has been properly configured and installed, it should operate transparently. This section describes power-up, LED status monitors, and the built-in loopback test modes. 6.1 Power-Up Before applying power to the Line Driver, please read Section 5.4 and make sure that the unit is connected to the appropriate power source.
  • Page 24 CHAPTER 6: Operation 4 pulses = Line Driver’s buffer is saturated 5 pulses = WAN receive frame(s) too large 6 pulses = WAN receive frame(s) not octet aligned 7 pulses = WAN receive frame(s) aborted 8 pulses = Detected WAN receive frame(s) with CRC 9 pulses = Detected LAN receive frame(s) too large 10 pulses =...
  • Page 25 2-WIRE SHORT-RANGE DSL LINE DRIVER (MDSL) Table 6-1. LED status, local Line Driver. Local 10BASE-T DSL Status Power On Green* Flashing DSL Link Green* Green Flashing Link Brk Green* Flashing Brk +10s Green* Flashing Green* Green Flashing RDL +511 Green* Flashing Table 6-2.

  • Page 26: Test Modes

    CHAPTER 6: Operation 6.3 Test Modes The mDSL Line Driver offers a proprietary Remote Loopback test mode. It also has a built-in V.52 BER test-pattern generator to evaluate the communication status between units. Activate this test mode by toggling the Test Mode switch on the unit’s front panel.

  • Page 27: Restart Procedures And Timeouts

    2-WIRE SHORT-RANGE DSL LINE DRIVER (MDSL) receiving unframed packets and assume that the line has gone down. During test modes, the pattern generator is forced to time out before it can cause the DSL link to go down. • Loop Control: This part of the processor is used to control Remote Loopback test mode.

  • Page 28: Loops And Patterns

    CHAPTER 6: Operation 6.3.3 L OOPS AND ATTERNS The following section describes the Remote Loopback/BER test modes. Remote Digital When Remote Loop/511 or Remote Loop/511/E is enabled via the front-panel switch, the remote unit’s restart timer is set to one minute. This is because when the 511/511E generator is initiated on the local unit, the remote framer begins seeing unframed packets.

  • Page 29: Using The V.52 (Ber) Test-Pattern Generator

    2-WIRE SHORT-RANGE DSL LINE DRIVER (MDSL) 6.3.4 U V.52 (BER) T SING THE ATTERN ENERATOR To use the V.52 BER tests in conjunction with the Remote Digital Loopback tests, follow these instructions: 1. Locate the Remote Loop/511 and Remote Loop/511E toggle switch on the Line Driver’s front panel and move it DOWN.

  • Page 30: Appendix: Transmission Distance Charts

    APPENDIX: Transmission Distance Charts Appendix. Transmission Distance Charts Table A-1. Transmission distance, 26 to 20 AWG. Line 26 AWG (0.4 mm) 24 AWG (0.5 mm) 22 AWG (0.6 mm) 20 AWG (0.8 mm) Rate Rates mi. km ft. mi. km mi.
  • Page 31 © Copyright 2002. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...

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