Black Box LDM-144LR Manuals

Manuals and User Guides for Black Box LDM-144LR. We have 1 Black Box LDM-144LR manual available for free PDF download: User Manual

Black Box LDM-144LR User Manual

Black Box LDM-144LR User Manual (48 pages)

Brand: Black Box | Category: Modem | Size: 0 MB

Table of Contents

Table of Contents
6
1 Specifications

8
- Transmission Line
  8
- Digital Interface
  8
- Diagnostics (V.54 Standard Compliant)
  8
- Timing Elements
  9
- Indicators
  9
- Physical
  10
- Electrical
  10
- Protection
  10
- Environment
  10
2 Introduction

11
- General
  11
- Physical Description
  12
- Functional Description
  12
  - Encoder Modulator
    13
  - Modulation Timing
    13
  - Selectable Level Transmit Amplifier
    14
  - Diagnostics
    14
  - Test Pattern Generator and Receiver
    14
  - Selectable Carrier Detect Sensitivity
    14
  - V.54 Diagnostics
    14
- Applications
  15
3 Standalone Installation

17
- General
  17
- Site Preparation
  17
- Mechanical Assembly
  17
- Electrical Installation
  17
  - Power Connection
    17
  - Rear Panel Connectors
    18
  - DTE Interface Side
    19
  - Strap Selection
    20
  - Installation of Internal Jumpers and Switches
    20
  - Line Side
    24
4 Standalone Operation

26
- General
  26
- Controls and Indicators
  26
- Operating Procedure
  26
  - Powering on
    26
  - Self Test
    30
  - Operation
    30
  - Turning off Power
    30
- Field Settings of Jumpers and Switches
  30
5 Tests and Diagnostics

31
- General
  31
- Loop Tests
  31
6 Card Cage Version

35
- RM110A Description
  35
- LDM-144LR Card Version
  36
- Power Supply
  36
  - AC Supply (110 or 230 VAC)
    36
  - DC Supply (-48 VDC)
    36
  - Power Supply with Redundancy
    36
- Installation
  37
  - Electrical Installation
    37
  - Mechanical Installation
    37
- Operation
  38
Appendix A: IR-G.703 Co-Directional 64-Kbps Interface

39
Appendix B: RS-422 Interfacing Pinout

43
Appendix C: Unit Case Assembly

45

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