Aplex Technology ARCHMI-807 - Manual (Page 48)

ARCHMI-8XX Series User Manual 47
Note:
Before connection, make sure that pinout of the USB Cable is in accordance
with that of the said tables. Any inconformity may cause system down and
even hardware damages.
JP5：
(2.0mm Pitch 2x3 Pin Header), COM3 setting jumper, pin 1~6 are used to select
signal out of pin 9 of COM3 port.
JP5 Pin# Function
Close 1-2 RI (Ring Indicator) (default)
Close 3-4 COM3 Pin9=+5V (option)
Close 5-6 COM3 Pin9=+12V (option)
COM3：
(Type DB9), serial port, standard DB9 serial port is provided to make a direct
connection to serial devices. COM3 port is controlled by pins No.1~6 of JP5,
select output Signal RI or 5V or 12v, for details, please refer to description of
JP5.
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 JP5 Setting:
Pin1-2: RI (Ring Indicator) (default)
Pin3-4 : 5V Standby power (option)
Pin5-6: 12V Standby power (option)