Maple Systems Windows CE Embedded 6.0 Professional Edition - Manual (Page 12)

OMI5000 Series (Windows Embedded CE 6.0 Professional) Operating Manual 8
Maple Systems 1010-1016 Rev 00 www.maplesystems.com
Note that although the com port number setting is the same, different connections are required for
using RS-232 or RS-422/485. The pin outs for each port are shown.
COM1 [RS-232]/COM3 [RS-232]
Pin out of DE9P (male) connector
Pin # COM1[RS232] COM3[RS232]
1
2 RXD
3 TXD
4
5 Signal Ground
6
7 RTS TXD
8 CTS RXD
9
 Restrict cable length to less than 500 feet (150m) for RS-422/RS-485 devices and less than
50 feet (15m) for RS-232 devices in order to avoid communication problems.