User's Manual

455U Radio Modem Module User Manual
Page 6 © November 2004
3.7 W HAT O PERATING M ODE TO U SE ? ..............................................................................26
3.7.1 Unacknowledged or Acknowledged mode? ............................................................26
3.7.2 Error Check ? ...........................................................................................................26
3.7.3 Data Encryption Option ........................................................................................... 27
3.8 S ERIAL / R ADIO R ATES ..................................................................................................27
3.9 O PERATING P ROBLEMS ................................................................................................. 28
CHAPTER FOUR CONFIGURATION...........................................................................29
4.1 B EFORE C ONFIGURING ..................................................................................................29
4.2 A DDRESSING .................................................................................................................29
4.3 D EFAULT C ONFIGURATION ............................................................................................30
4.4 C ONFIGURATION P ROGRAM ..........................................................................................30
4.4.1 Unacknowledged Mode ...........................................................................................31
4.4.2 Acknowledged mode................................................................................................33
4.4.3 Other Parameters......................................................................................................34
4.5 H AYES C OMMANDS ......................................................................................................37
4.6 S WITCH C ONFIGURATION ..............................................................................................38
4.7 C ONFIGURATION E XAMPLES ......................................................................................... 39
CHAPTER FIVE SPECIFICATIONS ............................................................................. 43
CHAPTER SIX TROUBLESHOOTING .........................................................................45
6.1 D IAGNOSTICS C HART ....................................................................................................45
6.2 T EST F UNCTIONS ...........................................................................................................46
6.2.1 Radio Testing - AT&Tx...........................................................................................46
6.2.2 Bit Error Rate Test (BER)........................................................................................47
6.2.3 On-line diagnostics ..................................................................................................47
CHAPTER SEVEN WARRANTY & SERVICE............................................................. 48
APPENDIX A HAYES COMMANDS.............................................................................49
APPENDIX B RESPONSE CODES ................................................................................ 63
APPENDIX C S-REGISTERS.......................................................................................... 64