Instruction Manual

DESCRIPTION 2-25
MCC-545C PACKET DATA RADIO
12/2000
3.2.2.4.2 Data Port
The Data Port is normally connected to a data logger, GPS receiver or other serial input device.
Use a standard RS-232 cable with a 9-pin male D connector. Refer to Appendix B and C for
more information on interfacing to data loggers or other serial input devices.
DATA PORT – 9S
Pin Signal
1 Not Used
2Tx Data
(from MCC-545C)
3Rx Data
(to MCC-545C)
4DTR
(to MCC-545C)
5 Ground
6DSR
(from MCC-545C)
7RTS
(to MCC-545C)
8CTS
(from MCC-545C)
9 Ring Ind.
(from MCC-545C)
3.2.2.4.3 Auxiliary Port (AUX)
The AUX PORT is normally connected to a GPS receiver or other serial input device. Use a
standard RS-232 cable with a 9-pin male D connector. This port is also used for interfacing to
MCC test equipment (pins 6, 8, and 9).