Main RS–232 Interface
The main RS–232 interface is a standard DB–9 plug connector used with a host processor. In real-time
mode, tag IDs are read and passed on to the host processor.
illustrates the RS–232, DB–9 plug
connector pin-outs.
Aux RS–232 Interface
The auxiliary RS–232 interface is used as a backup monitoring system to the main RS–232 interface. The
auxiliary interface monitors data from the transponder interrogator. The auxiliary RS–232 interface is a
standard DB09 plug connector. This port is not wired to receive data and cannot accept commands.
RS232
AUX
MAIN
PIN5 – GROUND
PIN3 – TX DATA
PIN2 –RX DATA
PIN5 – GROUND
PIN3 – TX DATA
RS232PINSb
Figure 6 RS–232, DB–9 Interface Connector Pin-outs
AI1422E Reader User Guide
TransCore Proprietary
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