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©Sealevel Systems, Inc.
SL9222 07/2011
Relio R5200 Manual
34
COM2, 3, 4 support RS-232 and are available on DB9 male connectors. DCD and RI can be
configured for +5V or +12V, depending on jumper settings. To 5V/12V over DCD/RI, refer
to the jumper configuration section of this manual or contact your sales rep to have this configured
at the factory.
The COM ports are labeled as a |O|O| with the number of the port to the right of this symbol. The
RS-232 pinout is shown in the table below:
PIN#
RS-232
1
DCD
2
RX
3
TX
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI