RAD Data comm ASM-20 Spezifikationen Seite 15

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Seitenansicht 14
ASM-40 Ver. 1.0 i
Contents
Chapter 1. Introduction
1.1 Overview....................................................................................................................1-1
Versions .................................................................................................................1-1
Power Supply Options ........................................................................................1-1
Applications............................................................................................................1-1
Features.................................................................................................................1-2
DTE Interface .....................................................................................................1-2
Timing................................................................................................................1-2
Diagnostics ........................................................................................................1-2
1.2 Physical Description ...................................................................................................1-3
1.3 Functional Description................................................................................................1-3
Timing Generator....................................................................................................1-4
G.703-HDB3 Interface Timing .............................................................................1-5
Encoder/Decoder ....................................................................................................1-6
Line Driver..............................................................................................................1-6
Receiver .................................................................................................................1-7
NRZ Interface..........................................................................................................1-7
1.4 Technical Specifications..............................................................................................1-7
Chapter 2. Installation and Setup
2.1 Site Requirements and Prerequisites ..........................................................................2-1
2.2 Package Contents ......................................................................................................2-2
2.3 Installation and Setup ................................................................................................2-2
Configuring ASM-40 ................................................................................................2-2
Connecting the Interfaces.......................................................................................2-5
Connecting the Line ...........................................................................................2-6
Connecting the DTE............................................................................................2-6
Connecting the Power.............................................................................................2-7
AC Power Connection .........................................................................................2-7
DC Power Connection.........................................................................................2-8
Chapter 3. Operation
3.1 Front Panel Controls and Indicators............................................................................3-1
3.2 Operating Procedure ..................................................................................................3-2
Turning ASM-40 On.................................................................................................3-2
Normal Indications..................................................................................................3-3
Turning ASM-40 Off ................................................................................................3-3
Chapter 4. Troubleshooting and Diagnostics
4.1 V.54 Loopback Tests ..................................................................................................4-1
Local Analog Loopback (LLB)...................................................................................4-2
Remote Digital Loopback (RLB) ...............................................................................4-2
Local Digital Loopback (DIG)....................................................................................4-3
4.2 Internal BERT .............................................................................................................4-4
Modem Self-Test ....................................................................................................4-4
Two-BERT Test........................................................................................................4-5
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