Black Box ME0006A-10BT Manual de usuario

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INFORMATION

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Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com • E-mail: [email protected]

NOVEMBER 2001

ME0006A-10BT

2-Wire Short-Range DSL Line Driver

(HDSL with 10BASE-T)

FCC AND IC RFI STATEMENTS/CE NOTICE

FEDERAL COMMUNICATIONS COMMISSION

AND

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

operated in a commercial environment. Operation of this equipment in a

residential area is likely to cause interference, in which case the user at his own

expense will be required to take whatever measures may be necessary to correct the

interference.

Changes or modifications not expressly approved by the party responsible

for compliance could void the user’s authority to operate the equipment.

This digital apparatus does not exceed the Class A limits for radio noise emission from

digital apparatus set out in the Radio Interference Regulation of Industry Canada.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites

applicables aux appareils numériques de la classe A prescrites dans le Règlement sur le

brouillage radioélectrique publié par Industrie Canada.

EUROPEAN UNION DECLARATION OF CONFORMITY

This equipment complies with the requirements of the European EMC Directive

89/336/EEC.

2-WIRE SHORT-RANGE DSL LINE DRIVER (HDSL) WITH 10BASE-T

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.

3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de

operación deben ser respetadas.

4. Todas las instrucciones de operación y uso deben ser seguidas.

5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca

de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc..

6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que

sean recomendados por el fabricante.

7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea

recomendado por el fabricante.

8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá

a lo descrito en las instrucciones de operación. Todo otro servicio deberá ser

referido a personal de servicio calificado.

9. El aparato eléctrico debe ser situado de tal manera que su posición no

interfiera su uso. La colocación del aparato eléctrico sobre una cama, sofá,

alfombra o superficie similar puede bloquea la ventilación, no se debe colocar

en libreros o gabinetes que impidan el flujo de aire por los orificios de

ventilación.

10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor

como radiadores, registros de calor, estufas u otros aparatos (incluyendo

amplificadores) que producen calor.

11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del

tipo descrito en el instructivo de operación, o como se indique en el aparato.

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.

14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las

recomendaciones del fabricante.

15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas

de energia.

16. El cable de corriente deberá ser desconectado del cuando el equipo no sea

usado por un largo periodo de tiempo.

17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean

derramados sobre la cubierta u orificios de ventilación.

18. Servicio por personal calificado deberá ser provisto cuando:

A: El cable de poder o el contacto ha sido dañado; u

B: Objectos han caído o líquido ha sido derramado dentro del aparato; o

C: El aparato ha sido expuesto a la lluvia; o

D: El aparato parece no operar normalmente o muestra un cambio en su

desempeño; o

E: El aparato ha sido tirado o su cubierta ha sido dañada.

2-WIRE SHORT-RANGE DSL LINE DRIVER (HDSL) WITH 10BASE-T

TRADEMARKS USED IN THIS MANUAL

Cisco®is a registered trademark of Cisco Systems.

IPX™ is a trademark of Novell Incorporated.

Any other trademarks mentioned in this manual are acknowledged to be the property of the

trademark owners.

CONTENTS

Contents

Chapter Page

1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3. PPP Operational Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4. Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.1 Connecting the DSL Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2 Connecting the 10BASE-T Ethernet Port to a PC (DTE) . . . . . . . . . . . . 17

5.3 Connecting the 10BASE-T Ethernet Port to a Hub (DCE) . . . . . . . . . . . 18

5.4 Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6. Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.1 Power-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.2 LED Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.3 Test Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.3.2 Restart Procedure and Timeouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.3.3 Loops and Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.3.4 Using the V.52 (BER) Test-Pattern Generator . . . . . . . . . . . . . . . . . . 25

Appendix: Transmission Distance Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2-WIRE SHORT-RANGE DSL LINE DRIVER (HDSL) WITH 10BASE-T

1. Specifications

Clocking Modes: Internal or Receive Recovered

DTE Rates: 64, 128, 192, 256, 320, 384, 448, 512, 576, 640, 704, 768, 832, 896, 960,

1024, 1088, 1152 kbps

Line Rates (DSL Line): 144, 272, 400, 528, 784, 1040, 1168 kbps

Transmission Line: Single twisted pair

Line Coding: 2B1Q

Line Interface: Transformer coupled, 1500-VAC isolation

Diagnostics: V.52-compliant (511/511E) pattern generator and detector with error

injection mode and remote loopback control by a single front-panel switch

Indicators: LEDs: DSL Link (green active); 10BT Link (green active) valid

Ethernet connection; Status (flashing yellow) indication from the Ethernet port;

NS (red active) no signal on DSP link; ER (flashing red) CRC error during pattern-

generation test; TM (active yellow) test mode enabled

Configuration: Externally accessible DIP switches or SNMP managed through DSL

Rack Card (ME0003C)

Connectors: RJ-45, 10BASE-T 802.3 Ethernet

Address Aging: Entries are deleted after 8 minutes of inactivity

Frame Latency: 1 frame

Frame Buffer: 512 frames

Ethernet Physical Connection: Pin 1 TX Data +; Pin 2 TX Data -; Pin 3 RX Data +;

Pin 4 RX Data -; Pins 4, 5, 7, 8 no connection

Power: +5 external desktop power supply, 100 to 240 VAC, 50 to 60 Hz (universal

input), 10 W

Size: 1.6"H x 4.7"W x 5"D (4.1 x 11.9 x 12.7 cm)

Weight: 0.58 lb. (0.26 kg)

CHAPTER 2: Introduction

2. Introduction

2.1 Description

The 2-Wire Short-Range DSL Line Driver (HDSL) 10BASE-T 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. The HDSL Line Driver lets you a) add

additional nodes to a LAN that has reached its maximum distance limits, or

b) separate high-traffic areas of a LAN. The Line Driver connects peered LANs and

automatically forwards and receives LAN broadcasts, multicasts, and frames across

a 2-Wire DSL span. The Line Driver is 802.3 compliant and supports PPP (RFC

1661) and BCP (RFC 1638).

The HDSL Line Driver features include loopback diagnostics, inband

SNMP/HTTP remote management capabilities using Plug-and-Play, and externally

accessible configuration switches. As a symmetric DSL modem, the Line Driver

offers the same data rates in both directions over a single pair of regular telephone

lines using 2B1Q modulation. The Line Driver connects to the DSL line via an

RJ-45 jack. Power is supplied via a universal (100 to 240-VAC) power supply.

2.2 Features

• Provides MAC level (Layer 2) connection between two peered 10BASE-T

Ethernet LANs.

• Operates transparently to higher-level protocols such as TCP/IP, DECnet,

NETBEUI, and IPX™.

• PPP (Point-to-Point Protocol, RFC 1661) with Bridge Control Protocol (RFC

1638).

• Automatically discovers, loads, and deletes MAC addresses.

• Point-to-point connectivity over 2-wire HDSL up to 5 km.

• HTTP/SNMP Manageable as CP (Customer Premises) unit with a High-Speed

2-Wire Short-Range DSL Rack Card (ME0003C) CO (Central Office).

• Internal or receive recovered clocking between units.

• LED indicators for 10BASE-T Link, DSL Link, Status, No Signal, Error, and

Test Mode.

2-WIRE SHORT-RANGE DSL LINE DRIVER (HDSL) WITH 10BASE-T

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. A standard method to encapsulate datagrams over serial links.

2. A Link Control Protocol (LCP) to establish, configure, and test the data-link

connection.

3. A family of Network Control Protocols (NCPs) to establish and configure

different network layer protocols.

In order to establish communications over a point-to-point link, each end of the

PPP link must first announce its capabilities and agree on the parameters of the

link’s operation. This exchange is facilitated through LCP Configure-Request

packets.

Once the link has been established and optional facilities have been negotiated,

PPP will attempt to establish a network protocol. PPP will use Network Control

Protocol (NCP) to choose and configure one or more network layer protocols.

Once each of the network layer protocols have been configured, datagrams from

the established network layer protocol can be sent over the link. The link will

remain configured for these communications until explicit LCP or NCP packets

close the link down, or until some external event occurs.

The PPP Bridging Control Protocol (BCP), defined in RFC 1638, configures and

enables/disables the bridge protocol on both ends of the point-to-point link. BCP

uses the same packet exchange mechanism as the Link Control Protocol (LCP).

BCP is a Network Control Protocol of PPP; bridge packets may not be exchanged

until PPP has reached the network layer protocol phase.

Applications

In situations where a routed network requires connectivity to a remote Ethernet

network, the interface on a router can be configured as a PPP IP half-bridge. The

serial line to the remote bridge functions as a virtual Ethernet interface, effectively

extending the router’s serial port connection to the remote network. The bridge

device sends bridge packets (BPDUs) to the router’s serial interface. The router

will receive the layer three address information and will forward these packets

based on its IP address.

CHAPTER 3: PPP Operational Background

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. 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 above example.

Figure 3-1. Cisco router configured as a PPP half-bridge.

Customer site Service provider’s network

Ethernet LAN

Internet

Router

Bridge

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