Rockwell Automation 6182 Industrial Computer for the Windows CE Operating System - Manual (Page 34)

3–6 Connecting External Devices
Publication 6182-UM001D-EN-P
The RAC6182 Computer has two serial ports – COM1 and COM2, both
with DB9 male connectors.
The COM1 port supports RS232, RS422, and RS485 physical signals.
The COM1 physical signals are software-selectable.
The COM2 port supports only RS232 physical signals. The COM2 port
is used to connect to a host PC using ActiveSync.
Note: You must use a null modem cable (6189-2NMCBL) to
connect the COM2 port to a host PC. For information on
the null modem cable, refer to Appendix D, RAC6182
Point-to-Point Communications.
Note: For information on connecting the RAC6182 Industrial
Computer to a host PC using the serial port, refer to
Chapter 14, Communications Configuration.
Table G
DB9 Male Connector Pin-Out
PIN
RS232 Signal
(COM1 and COM2)
RS422/RS485 Signal
(COM1 Only)
1 DCD TXD(+)
2 RXD TXD(-)
3 TXD RXD(+)
4 DTR RXD(-)
5 SGND SGND
6 DSR DH485 TXENBL
7 RTS Not connected
8 CTS Not connected
9 RI Not connected
Connecting Serial
Devices