Acnodes PCH 3591 - Manual (Page 15)

Note:
W hen connecting LEDs and buzzer, pay special attention to the signal
pola-
rity. Make sure that the connector pins have a one-to-one correspondence
with chassis wiring, or it may cause boot up failure.
5. JP1:
(2.0mm Pitch 1x3 Pin Header) COM5 setting jumper, pin 1~3 are used to
select signal out of pin 10 of COM5 port.
JP1 Pin# Function
Close 1-2 COM5 Pin10=+5V (default)
Close 2-3
COM5 Pin10=+12V (option)
6. COM5
: (2.0mm Pitch 2X5 Pin Header), COM5 Port, standard RS232 ports are
provided. They can be used directly via COM cable connection.
Signal
Name Pin# Pin# Signal Name
DCD 1 2 RXD
TXD 3 4 DTR
Ground 5 6 DSR
RTS 7 8 CTS
RI 9 10 Jp1 Setting:
Pin1-2 : 5V
(default)
Pin2-3:12V
(option)
7. COM2/COM4
: (2.0mm Pitch 2X5 Pin Header),COM2 COM4 Port, up to 2
standard RS232 ports are provided. They can be used directly via COM cable
connection.
Signal
Name Pin# Pin# Signal Name
DCD 1 2 RXD
TXD 3 4 DTR