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18
Chapter 4 Jumper Settings
Chapter 4
COM 1 Signal Select
JP3
1-3 On: Pin-9
is RI (default)
JP3 (for COM 1) is used to configure pin 1 and pin 9 signal of the COM port. The pin function
of the COM ports will vary according to the jumper’s setting.
6
4
2
5
3
1
6
4
2
5
3
1
3-5 On: Pin-9
is VCC (+5V)
6
4
2
5
3
1
6
4
2
5
3
1
2-4 On: Pin-1
is DCD (default)
4-6 On: Pin-1
is VCC12 (+12V)
COM1/COM2 RS232 Power Select
JP1
JP14
1-3, 2-4 On: RS232
(default)
3-5 (+12V), 4-6 (+5V)
On: RS232 with power
1-3, 2-4 On: RS232
(default)
3-5 (+12V), 4-6 (+5V)
On: RS232 with power
2
1 3
5
4 6
1 3
5
2
4 6
1 3
5
2
4 6
1 3
5
2
4 6
