User's Manual
Documentation Number 11401198 Manual   Table of Contents 
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 
PH (815) 433-5100 -- FAX (815) 433-5105
Table of Contents 
1.0 WARRANTY INFORMATION ................................ 1 
1.1 RADIO AND TV INTERFERENCE.........................................1 
1.2 SERVICE................................................................................2 
2.0 GENERAL INFORMATION .................................. 3 
2.1 FEATURES ...........................................................................3 
2.2 DESCRIPTION......................................................................3 
3.0 CONFIGURATION OVERVIEW............................. 4 
3.1 CONFIGURATION SWITCHES.............................................4 
3.2 CONFIGURATION SWITCH SET "S1" .................................5 
S1-1 through S1-4: Data Rate Setting......................................6 
S1-5 and S1-6: Clock Source ...................................................6 
S1-7: Asynchronous/Synchronous Mode .................................6 
S1-8: Carrier Control Method ...................................................7 
3.3 CONFIGURATION SWITCH SET "S2" .................................7 
S2-1 and S2-2: Word Length....................................................7 
S2-3: Extended Signaling Rate ................................................8 
S2-4 and S2-5: RTS/CTS Delay...............................................8 
S2-8: V.54 Loopback Test Enable............................................8 
4.0 INSTALLATION..................................................... 9 
4.1 FIBER CONNECTIONS.........................................................9 
4.2 RS-232 CONNECTION..........................................................9 
5.0 OPERATION........................................................ 10 
5.2 TEST MODES......................................................................10 
5.2.1 LOCAL ANALOG LOOP BACK (LAL) ...........................10 
5.2.2 REMOTE DIGITAL LOOPBACK (RDL).........................11 
5.2.3 USING THE V.52 BER TEST INDEPENDENTLY.........12 
5.3 POWER UP .........................................................................12 
APPENDIX A: SPECIFICATIONS ............................ 13 
APPENDIX B. PIN CONFIGURATIONS................... 14 










