Contents
Man_455U-D Rev 3.07
Page
7
3.13.1
Data Logger Network with Central Computer .................................................... 55
3.13.2
Unacknowledged mode with broadcast messages and repeaters. ........................ 56
3.14
S
WITCH
C
ONFIGURATION
....................................................................................... 57
CHAPTER FOUR
TROUBLESHOOTING .................................................................... 58
4.1
P
OWER
-
UP AND
N
ORMAL
O
PERATION
................................................................... 58
4.2
LED
INDICATION
D
IAGNOSTICS
C
HART
................................................................. 59
4.3
O
PERATING
P
ROBLEMS
.......................................................................................... 60
4.4
T
EST
F
UNCTIONS
................................................................................................... 61
4.4.1
Bit Error Ratio Test (BER) ...................................................................................... 61
4.4.2
Other Radio Testing - AT&Tx ................................................................................ 62
4.4.3
On-line diagnostics .................................................................................................. 63
4.5
R
ADIO
P
ATH
T
ESTING
............................................................................................ 65
4.6
C
HANGING THE
R
ADIO
P
ARAMETERS
..................................................................... 66
4.7
D
IAGNOSTIC
M
ESSAGES
........................................................................................ 67
CHAPTER FIVE
SPECIFICATIONS ............................................................................. 68
CHAPTER SIX
WARRANTY & SERVICE ................................................................... 71
APPENDIX A
HAYES COMMANDS ............................................................................. 72
APPENDIX B
RESPONSE CODES ................................................................................ 81
APPENDIX C
S-REGISTERS .......................................................................................... 82
