Black Box LRA1204C Manual
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Black Box LRA1204C Manual

Black Box LRA1204C Manual

Adsl/g. lite 12-port access multiplexor module
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© Copyright 2001. Black Box Corporation. All rights reserved.
1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746

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Summary of Contents for Black Box LRA1204C

  • Page 1 © Copyright 2001. 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.: 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 SUPPORT Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 INFORMATION Web site: www.blackbox.com • E-mail: info@blackbox.com...
  • Page 4 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.
  • Page 5 ADSL/G. LITE 12-PORT ACCESS MULTIPLEXOR MODULE INSTRUCCIONES DE SEGURIDAD (Normas Oficiales Mexicanas Electrical Safety Statement) 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.

  • Page 6: Table Of Contents

    CONTENTS/TRADEMARKS USED IN THIS MANUAL Contents Chapter Page 1. Specifications ..............4 2.

  • Page 7: Specifications

    ADSL/G. LITE 12-PORT ACCESS MULTIPLEXOR MODULE 1. Specifications Bandwidth—Asymmetric 8 Mbps downstream/1.5 Mbps upstream with selectable speed settings (full-rate modes: G.dmt, T1.413, and Alcatel); 1.5 Mbps downstream/512 kbps upstream with selectable speed settings (G. Lite) Distance—Up to 18,000 ft. (5.5 km) Interface—(12) ADSL ports ([1] RJ-21 50-pin Telco, DMT encoding);...

  • Page 8: Introduction

    CHAPTER 2: Introduction 2. Introduction 2.1 Overview The ADSL/G. Lite 12-Port Access Multiplexor Module provides high-speed asymmetrical bandwidth for the IP DSLAM. The standards-based multiplexor module interoperates with any standard ADSL or G. Lite modem over the local loop while still preserving the benefits of a packet-based architecture. Simultaneous voice and data support allows providers to take advantage of line-sharing agreements, reducing the overall cost of deploying residential DSL services.

  • Page 9: Installation

    ADSL/G. LITE 12-PORT ACCESS MULTIPLEXOR MODULE 3. Installation 1. Make sure that you’re using proper grounding techniques when installing modules into the IP DSLAM. 2. Align the module with the slot module guides and slide the module gently, but firmly, all the way into the chassis. 3.

  • Page 10: Operation

    CHAPTER 4: Operation 4. Operation 4.1 Operational Modes Each ADSL port may run in one of four operational modes: G.DMT, T1.413, Alcatel, or G.Lite. G.DMT, T1.413, and Alcatel operational modes are full-rate ADSL options, allowing for up to 1.5 Mbps upstream bandwidth and 8 Mbps downstream bandwidth.

  • Page 11: Distance Support

    ADSL/G. LITE 12-PORT ACCESS MULTIPLEXOR MODULE NOTE The default speed setting for the Multiplexor Module is set for adaptive rate, meaning that the ADSL line will adjust to the best possible speed. 4.3 Distance Support In full-rate modes, the Module will support distances up to 12,000 ft. (26 AWG). The G.Lite mode supports up to 18,000 ft.
  • Page 12 CHAPTER 4: Operation NCAPSULATION PTIONS The Multiplexor Module supports both RFC1483 LLC encapsulation and RFC1483 VCM encapsulation methods. Each port defaults to LLC encapsulation. The encapsulation methods are set by using the Web-based management system on the DSL Access Multiplexor Uplink Module (LRA1203C). Table 2.

  • Page 13: Led Indicators

    ADSL/G. LITE 12-PORT ACCESS MULTIPLEXOR MODULE 4.5 LED Indicators Each ADSL module features the following status LEDs for at-a-glance monitoring. ODULE • PWR: Steady green indicates normal operation for the entire module. • LNK: Pulsing green (once per second) indicates that ADSL connection is operational and the unit is receiving data packets from or transmitting data packets to the remote unit on the other side of the ADSL connection.

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