Black Box SHM-768K Series Manuals

Manuals and User Guides for Black Box SHM-768K Series. We have 1 Black Box SHM-768K Series manual available for free PDF download: Manual

Black Box SHM-768K Series Manual

Black Box SHM-768K Series Manual (48 pages)

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

Table of Contents

Table of Contents
6
1 Specifications

8
- Analog Interface
  8
- Digital Interface
  8
- Test Switches/Diagnostics
  8
  - Standard)
    8
  - Me280A
    8
- Timing Elements
  9
- Indicators
  9
- Physical
  9
- Power Supply
  9
- Me280A
  9
- Environment
  10
2 Introduction

11
- General
  11
- Physical Description
  12
- Functional Description
  12
  - Transmitter
    12
  - Receiver
    13
  - Diagnostics
    13
  - Test Pattern Generator and Receiver
    14
  - Buffer (for X.21 Interface)
    14
3 Installation

15
- General
  15
- Site Preparation
  15
- Mechanical Assembly
  15
- Electrical Installation
  15
  - Power Connection
    15
  - Rear Panel Connections
    16
  - Strap Selection
    21
  - Installation of Internal Jumpers and Switches
    21
4 Operation

25
- General
  25
- Controls and Indicators
  25
- Operating Procedure
  29
  - Power-On Procedure
    29
  - Self Test
    29
  - Operation
    29
  - Power-Off Procedure
    29
- Operational Field Strapping Changes
  30
5 Tests and Diagnostics

31
- General
  31
- Loop Tests Procedure
  31
- Bit Error Rate Tester (BERT)
  31
- Modem Self Test
  33
- Local Test-Analog Loopback
  34
- Communication Link Tests
  35
  - Remote Digital Loopback
    35
  - Local Digital Loopback
    36
6 Rack Version

37
- Description
  37
- Card Modem
  37
- Power Supply
  37
- Installation
  38
- Operation
  38
- Power Supply Options
  39
  - Choosing a Power Supply
    39
  - Two-Transformer Option
    40
Appendix A: Connecting to RS-422

43
Appendix B: Installing the Standalone Unit in a Rack

45
- Installation of a Single Unit
  45
- Installation of Two Units
  46

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