Com ports x 4 – Intel OPEN (660) 120/140/150 II User Manual
Page 61
User Manual version 2.1
OPEN (660) 120/140/150
5-51
5.2. COM Ports x 4
The OPEN (660) 120/140/150 (+) II features with four
onboard COM ports located at the rear side of the chassis,
ready to connect to a wide range of serial devices. COM1,
COM3 and COM4 are RS-232 and COM2 is RS-232/485,
selected via jumper setting. Each COM port is with
+5V/+12V power capabilities on pin 9, providing easy
accommodation to a broad range of serial devices.
The COM port 5V/12 power is selected via jumper setting
on the I/O board.
Please refer to the following for the 5V/12 power selection.
COM2
+5V
+12V
RI
4 2
6
1
3
5
(Default)
J8
COM2
6
COM1
4 2
J7
5 3 1
COM4
COM3
COM1
J10
J9
J12
J11
J10
J14
COM4
Pin 1
Pin 9
J11
J7
COM1
COM3
J12
J8
COM2
J13
J9
COM3 COM4
J14
J13
5 3 1
6 4 2
5 3 1
6 4 2
5 3 1
6 4 2
5 3 1
6 4 2
5 3 1
6 4 2
5 3 1
6 4 2
5 3 1
6 4 2
5 3 1
6 4 2
5 3 1
6 4 2
Pin#
COM1 COM2 COM3 COM4
#1
J11
J12
J13
J14
#9
J7
J8
J9
J10
RI(default) +12V
+5V
5 3 1
6 4 2
5 3 1
6 4 2
5 3 1
6 4 2