Appendix
11-10 9390 Reference manual
Using the optional RS-232/I
2
C Interface
The RS-232/I
2
C Interface is an adaptor that plugs into the
Remote Control
connector. It provides two additional
sockets for connecting a GPS receiver and computer.
You need to use this interface when connecting any
combination of ALE controllers, modems, GPS receivers and
computers as the transceiver can only support one RS-232
port.
The interface has:
• a
GPS
socket for a GPS receiver
• a
COMPUTER
socket for a computer
• a
Remote Control
connector for remote control
equipment or a control head.
Internal switches control the equipment connections:
• the
GPS
switch controls use of the
GPS
socket
• the
COMP
switch controls use of the
COMPUTER
socket
• the
I
2
C
switch is only used if a second interface is
connected
• the
GPS A
and
GPS B
switches set the baud rate for
GPS
socket
• the
COMP A
and
COMP B
switches set the baud rate
for the
COMPUTER
socket.