User manual

Troubleshooting
180
35010372 02 03/2006
Wiring for COM
1, COM 2 tests
When testing the serial port, depending on which port and which communication
format you are testing, you may need to attach a loopback cable with wiring as
defined below.
The following table displays the loopback cable wiring for XBT GT:
RS-232C RS-422
XBT GT1000 in COM1 Not available.
XBT GT2000 in COM1 XBT GT2000 in COM1
- XBT GT2000 in COM2
Not available
2
1
SD
RD
RD
SD
CS
ER
RI
DR
RS
CD
2
3
8
4
9
6
7
1
RDA
SDA
SDB
RDB
CSB
ERB
CSA
ERA
1
3
7
2
6
9
8
4