Instruction Manual

DESCRIPTION 2-26
MCC-545C PACKET DATA RADIO
12/2000
AUX PORT – 9S
Pin Signal
1 Not Used
2Tx Data
(from MCC-545C)
3Rx Data
(to MCC-545C)
4 Not Used
5 Ground
6 Ant. Clock
(from MCC-545C)
7 Not Used
8 Ant. Dir.
(from MCC-545C)
9 Ant. Dir.
(from MCC-545C)
IMPORTANT
The AUX port connector has three extra pins (pins 6, 8, and 9) whose signals do not conform to
the RS-232 standard. These are for MCC test purposes and are not used at this time. These pins
will NOT interfere with a normal 3-wire RS-232 connector (pins 2, 3, and 5).
3.2.2.4.4 Data I/O Port
The Data I/O port is used as a general purpose Supervisory Control and Data Acquisition
(SCADA) interface requiring limited I/O in lieu of a full data logging capability. Use a mating
cable with a 25-pin male D connector for access to the various functions. For convenience, this
cable may be routed to a terminal block for interfacing to the various sensors and other external
devices.