Aplex Technology APC-3519 - Manual (Page 27)

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21. JP2:
(2.0mm Pitch 2x3 Pin Header),COM2 jumper setting, pin 1~6 are used to select signal
out of pin 9 of COM2 port.
JP2 Pin# Function
Close 1-2 COM2 Pin9 RI (Ring Indicator) (default)
Close 3-4 COM2 Pin9=+5V (option)
Close 5-6 COM2 Pin9=+12V (option)
22. COM2:
(Type DB9), Rear serial port, standard DB9 Male serial port is provided to make a direct
connection to serial devices.
Pin# Signal Name
1 DCD# (Data Carrier Detect)
2 RXD (Received Data)
3 TXD (Transmit Data)
4 DTR (Data Terminal Ready)
5 Ground
6 DSR (Data Set Ready)
7 RTS (Request To Send)
8 CTS (Clear To Send)
9 JP2 select Setting (RI/5V/12V)
23. 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 NC
24. JP3:
(2.0mm Pitch 1x3 Pin Header) COM6 setting jumper, pin 1~6 are used to select signal out
of pin 9 of COM6 port.
JP3 Pin# Function