Aplex APC-3228A, User Manual

Page: 35 / 96

APC-3228A User Manual 35
S1:
PWR BT: POWER on/off Button , They are used to connect power switch button. The
two pins are disconnected under normal condition. You may short them temporarily to
realize system startup & shutdown or awaken the system from sleep state.
PWR LED:
POWER LED
status.
COM3:
(Type DB9),
I/O serial port, it provides selectable RS422/RS485 serial signal
output.
RS422 Type (option) RS485 Type (option)
Signal Name Pin# Pin# Signal Name
1 1 NC
422_RX- 2 2 NC
422_TX- 3 3 485-
4 4 485+
Ground 5 5 Ground
NC 6 6 NC
NC 7 7 NC
NC 8 8 NC
NC 9 9 NC
Note:
Use COM3 RS422 or RS485 Function, please enter BIOS CMOS Setup. Path:
BIOS Setup Utility \ Advanced /Super IO Configuration \ Serial Port3 Type:
[RS-485]
[RS-422]
JP4:
(2.0mm Pitch 2x10 Pin Header) COM4 function setting jumper.
Function JP4 Pin#
RS232 Close: 3-5,4-6,10-12,11-13 (Default)
RS422 Close: 1-3,2-4,5-7,8-10,9-11,12-14,18-20