User`s manual

22
2-13 COM port pin9 select RI signal or Voltage source
JVC1 / 2 / 3 / 4 Description
*1-2 *COM port pin9 use RI signal
3-4 COM port pin9 use +5V voltage
5-6 COM port pin9 use +12V voltage
JVC1
*RI signal
JVC4
JVC3
1
1
2
2
3
3
4
46
6
5
5
1
2
3
46
5
1
2
3
46
5
JVC2
1
1
2
2
3
3
4
46
6
5
5
1
2
3
46
5
1
2
3
46
5
1
1
2
2
3
3
4
46
6
5
5
1
2
3
46
5
1
2
3
46
5
+5V +12V
JVC1: COM1 PIN9 select JVC2: COM2 PIN9 select
JVC3: COM3 PIN9 select JVC4: COM4 PIN9 select
Note: 1. Please be cautious about voltage setting.
2. If want to use +5V/+12V need check system power design spec.
*RI signal +5V +12V
*RI signal +5V +12V
*RI signal +5V +12V