Black Box 422 User Manuals

Table of Contents

• 1. Specifications

  7
• 2. Overview

  8
• 2.1 Introduction

  8
• 2.2 Features

  8
• 2.3 What’s Included

  9
• 2.4 Optional Items You May Need

  9
• 2.5 Hardware Description

  10
• 3. Installation and Configuration

  11
• 3.1 Software Installation

  11
• 3.2 Hardware Installation

  11
• 3.3 Verifying Installation

  12
• 3.4 Hardware Configuration

  13
• 3.4.1 Electrical Interface Mode Selection

  13
• 3.4.2 Interface Biasing

  14
• 3.4.3 Line Termination

  15
• 3.4.4 Echo

  16
• 3.4.5 Status LEDs

  16
• 3.4.6 DB9M Serial Connectors

  17
• Appendix A. Troubleshooting

  18
• A.1 Troubleshooting Tips

  18
• A.2 Contacting Black Box

  21
• A.3 Shipping and Packaging

  22
• Appendix B. Electrical Interfaces

  23