3 serial port connector (com rs-232), 4 serial port connector (com rs-232/rs-485) – Avalue SEPC-CDT User Manual
Page 12
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SEPC-CDT
12 SEPC-CDT Quick Reference Guide
2.1.3 Serial port connector (COM RS-232)
Note:
COM 1/3/4: RS-232, Pin 9 with power/ +5V&+12V
supported.
COM 5/6: RS-232, Pin 9 without power
Default: without power
Signal
PIN PIN
Signal
DCD#
1
6
DSR#
RXD
2
7
RTS#
TXD
3
8
CTS#
DTR#
4
9
RI#(5V/12V)
GND
5
2.1.4 Serial port connector (COM RS-232/RS-485)
Note:
COM 2: RS-232/485, Pin 9 with power/ +5V&+12V
supported.
RS-232
Signal
PIN PIN
Signal
DCD
1
6
DSR
RXD
2
7
RTS
TXD
3
8
CTS
DTR
4
9
RI#(5V/12V)
GND
5
RS-485
Signal
PIN
PIN
Signal
DATA-
1
6
NC
NC
2
7
NC
DATA+
3
8
NC
NC
4
9
NC
GND
5
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