DFI DS912-OT Manual - Manual (Page 35)

35
5
Ports and Connectors
COM Port
COM 2
RT
S
TXD
CT
S
RXD
GND
1
2
3
4
5
COM 1
1 9
2
DCD- TD
RD
DT
R
-
GND RT
S
-
DSR
-
CT
S-
RI
-
COM 1 and COM 2 are fi xed at RS232.
COM 1’s pin defi nition will vary according to JP8’s settings. Refer to “COM 1
RS232/RS422/RS485 Select” in this chapter for more information.
The serial ports are asynchronous communication ports with 16C550A-compatible
UARTs that can be used with modems, serial printers, remote display terminals,
and other serial devices.