Avalue SEPC-CDT - Manual (Page 12)

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