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Serial (COM) Port
The serial COM port is RS232 asynchronous communication port with 16C550A-compatible
UARTs that can be used with modems, serial printers, remote display terminals, and other se-
rial devices.
The system unit is equipped with 1 onboard serial port at the top side. JP6 is used to config-
ure the COM port 2 to RS232, RS422 (Full Duplex) or RS485. The pin functions of the COM
port will vary according to the jumper's setting.
6
6
5
4
4
3
2
2
1
3-4 On: RS422
1-2 On: RS232
Full Duplex
(default)
COM 2
1 2 3 4 5
1 2 3 4 5
6 7 8 9
6 7 8 9
RS422
RS232
Full Duplex
Chapter 4 Ports and Connectors
COM 2:
RS232/422/485
JP6
5
6
5
3
4
3
2
1
1
5-6 On: RS485
1 2 3 4 5
6 7 8 9
RS485
Chapter 4
Side Panel I/O Ports
2 built-in 1W speakers
The side panel I/O ports consist of the following:
• 2 built-in 1W speakers (left and right sides)
Built-in Speakers
AMP_L
1
AOUT_L+
AOUT_L-
2
The amplify left and right connectors which have amplifying features are used to connect
external speakers.
20
AMP_R
2
1
AOUT_R+
AOUT_R-
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