RAD Data comm ASM-20 - Manual (Page 13)

ASM-20 Installation and Operation Manual i
Contents
Chapter 1. Introduction
1.1 Overview..................................................................................................................... 1-1
Applications.......................................................................................................................... 1-1
Features................................................................................................................................ 1-2
Options ................................................................................................................................ 1-2
1.2 Physical Description..................................................................................................... 1-3
Front Panel........................................................................................................................... 1-3
LEDs..................................................................................................................................... 1-3
Jumpers ................................................................................................................................ 1-3
Rear Panel ............................................................................................................................ 1-3
1.3 Functional Description................................................................................................. 1-4
Encoder................................................................................................................................ 1-4
Modulation Timing ............................................................................................................... 1-5
XMT Level (optional)............................................................................................................. 1-5
Receiver ............................................................................................................................... 1-5
Remote Power Failure (RPF).................................................................................................. 1-5
V.54 Diagnostics................................................................................................................... 1-5
Async to Sync Converter ....................................................................................................... 1-5
X.21 Buffer (for X.21 interface).............................................................................................. 1-6
Test Pattern Generator and Receiver ..................................................................................... 1-6
X.21 External Clock Buffer Option......................................................................................... 1-6
G.703 DTE Interface............................................................................................................. 1-6
1.4 Technical Specifications............................................................................................... 1-7
Chapter 2. Installation and Setup
2.1 Introduction................................................................................................................. 2-1
2.2 Site Preparation and Prerequisites................................................................................ 2-1
2.3 Package Contents ........................................................................................................ 2-1
2.4 Equipment Needed ..................................................................................................... 2-2
2.5 Setting Internal Jumpers and Switches.......................................................................... 2-2
2.6 Connecting the Cables................................................................................................. 2-6
Strap Selection...................................................................................................................... 2-7
Power Connection................................................................................................................ 2-7
Chapter 3. Operation
3.1 Power On.................................................................................................................... 3-1
3.2 Controls and Indicators................................................................................................ 3-1
3.3 Operation.................................................................................................................... 3-4
Test Activation ...................................................................................................................... 3-4
Operational Jumper and Switch Changes .............................................................................. 3-4
3.4 Power Off.................................................................................................................... 3-4
Chapter 4. Troubleshooting and Diagnostics
4.1 Loop Test Procedure.................................................................................................... 4-1
4.2 Bit Error Rate Tester (BERT).......................................................................................... 4-1