
APC-3X91A User Manual
Note:
When 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.
6. COM5: (2.0mm Pitch 2X5 Pin Header), COM5 Port, standard RS232 ports are
provided. They can be used directly via COM cable connection.
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.
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