Com Port Pin9 Select Ri Signal Or Voltage Source - Lex Computech CI770A Instruction Manual

2-13 COM port pin9 select RI signal or Voltage source

JVC1: COM1 PIN9 select
JVC3: COM3 PIN9 select
JVC5: COM5 PIN9 select
JVC1/2/3/4/5/6
*1-2
3-4
5-6
Note : 1. Note : Attention ! Check Device Power in spec.
2. If want to use +5V/+12V need check system power design spec.
*RI signal
JVC1
1
3
5
JVC2
JVC2: COM2 PIN9 select
JVC4: COM4 PIN9 select
JVC6: COM6 PIN9 select
Description
COM port pin9 use RI signal
COM port pin9 use +5V voltage
COM port pin9 use +12V voltage
+5V
1 1
2 2
3 3
4 4
6 5 6 5
*RI signal
JVC6
*RI signal
JVC3
1 1
2
3 4 3
5 6 5
JVC5 JVC4
+12V
2
4
6
24
+5V +12V
1 1 1
2 2
3 4 3 4 3
5 6 5 6 5
+5V
1
2
4 3
6 5
2
4
6
+12V
2
4
6