Specifications
04-Jul-2005 11:00 FOM-40 Installation and Operation Manual  i 
Contents 
 Chapter 1. Introduction 
1.1  Overview..................................................................................................................... 1-1 
Versions................................................................................................................................1-1 
Applications..........................................................................................................................1-1 
Features................................................................................................................................1-2 
1.2  Physical Description..................................................................................................... 1-3 
1.3  Functional Description................................................................................................. 1-4 
Timing..................................................................................................................................1-4 
Diagnostics ...........................................................................................................................1-4 
Test Pattern Generator and Receiver .....................................................................................1-4 
1.4  Technical Specifications............................................................................................... 1-5 
 Chapter 2. Installation and Setup 
2.1  Site Requirements and Prerequisites ............................................................................ 2-1 
2.2  Package Contents ........................................................................................................ 2-2 
2.3  Installing FOM-40........................................................................................................ 2-2 
Connecting the Cables..........................................................................................................2-3 
Connecting the Power ..........................................................................................................2-4 
 Chapter 3. Operation 
3.1  Front Panel Controls and Indicators ............................................................................. 3-1 
3.2  Turning On FOM-40 ................................................................................................... 3-2 
3.3  Normal Indications ...................................................................................................... 3-3 
3.4  Turning Off FOM-40 ................................................................................................... 3-3 
 Chapter 4. Configuration 
4.1  Configuring FOM-40 ................................................................................................... 4-1 
4.2  FOM-40 Dip Switches ................................................................................................. 4-2 
 Chapter 5. Troubleshooting and Diagnostics 
5.1  Loopback Tests............................................................................................................ 5-1 
Local Analog Loopback (LLB) ................................................................................................5-2 
Remote Digital Loopback (RLB).............................................................................................5-3 
Local Digital Loopback (DIG) ................................................................................................5-4 
5.2  Internal BERT............................................................................................................... 5-4 
Modem Self-Test...................................................................................................................5-5 
Two-BER Test .......................................................................................................................5-5 
5.3  Inverting Signal for V.54 Compatibility ......................................................................... 5-6 
5.4  Technical Support........................................................................................................ 5-7 
 Chapter 6. FOM-40/R Card 
6.1  ASM-MN-214 Card Cage............................................................................................. 6-1 










