Black Box ME444A-R3 Manuales de usuario

Tabla de contenidos

• Specifications

  8
• Introduction

  10
• 2.1 Physical Description

  10
• 2.2 Functional Description

  11
• 2.2.1 Encoder Modulator

  11
• 2.2.2 Modulation Timing

  12
• 2.2.3 Signal Levels

  12
• 2.2.4 Receiver

  12
• 2.2.5 V.54 Diagnostics

  13
• 2.2.6 Test-Pattern Generator and Receiver

  13
• 2.3 Applications

  13
• Configuration

  15
• 3.1 Placement of the Standalone Version

  15
• 3.2 Installing the Card Version in the RackNest 2/14

  15
• 3.3 Configuring the Standalone or Card Version

  17
• Installation

  21
• 4.1 Installing the Standalone Version in 19" Racks

  21
• 4.1.1 Overview

  21
• 4.1.2 Installing a Single Unit in a 19-Inch Rack

  21
• 4.1.3 Installing Two Standalone Units in a 19-Inch Rack

  22
• 4.2 Installing the 256-kbps Rackmount Card Version

  24
• 4.3 Connecting Data Cables

  33
• 4.3.1 Power Connection

  33
• 4.3.2 LINE Connection

  34
• 4.3.3 DTE Connection

  34
• Operation

  36
• 5.1 Controls and Indicators

  36
• 5.2 Operating Procedure

  38
• Troubleshooting

  39
• 6.1 Loop Tests

  39
• 6.2 Bit-Error-Rate Tester (BERT)

  39
• 6.3 The Modem Self-Test

  41
• 6.4 Local Analog Loopback

  41
• 6.5 Remote Digital Loopback

  43
• 6.6 Local Digital Loopback

  44
• 6.7 Calling Black Box

  45
• 6.8 Shipping and Packaging

  46
• Appendix: Maximum Distances

  47