ISOLATOR Input Ports TB 3/4
Schematic Input Ports
ISOLATOR Input SET
JP1 to JP4
The JP3 is used to select voltage signal opto+ and opto- range of photo couple input channel 1, and the JP4 is used to select
voltage signal range of photo input channel 2, …etc. When we short the jumper, the input voltage range is 0 to 20V, and open the
jumper means input voltage range is 0 to 30V
Jumper
Input Range
Inactive Voltage
Active Voltage
short
0 to 30V
0 to 1.5V
3 to 20V
open
0 to 20V
0 to 16.5V
18 to 30V
Strong electromagnetic sources, such as power lines, large electric motors, switches, or welders can cause strong electromagnetic
interference. Video monitors and cables are strong sources of interference.
If the cable must be led by an area with significant electromagnetic interference, shielded cables with grounding on the source
should be used.
Avoid placing your cable parallel to a high-voltage line! to minimize adverse effects, insert the cable at right angle to the power line.
Pin
Signal
Description TB 3
1
SGND
Signal Ground
2
+5V
+5V
3
IN0+
Opto-Isolator Ch. 00 + Input
4
IN0-
Opto-Isolator Ch. 00 - Input
5
IN0+
Opto-Isolator Ch. 01 + Input
6
IN0-
Opto-Isolator Ch. 01 - Input
7
SGND
Signal Ground
8
+5V
+5V
Pin
Signal
Description TB 4
1
SGND
Signal Ground
2
+5V
+5V
3
IND+
Opto-Isolator Ch. 02 + Input
4
IND-
Opto-Isolator Ch. 02 - Input
5
IND+
Opto-Isolator Ch. 03 + Input
6
IND-
Opto-Isolator Ch. 03 - Input
7
SGND
Signal Ground
8
+5V
+5V
