Spectrum Controls 1746sc-INI4vi User Manual
Page 21
Chapter 2: Installing And Wiring Your Module
17
Table 7. Input module terminal block connections.
Pin
Label
Function
Channel
0
V IN 0 +
High differential voltage input (-INI4vi only)
0
1
I IN 0 +
High differential current input
2
COM 0 -
Low differential input, voltage & current, analog ground
3
SHIELD 0
Chassis ground
4
SHIELD 1
Chassis ground
1
5
V IN 1 +
High differential voltage input (-INI4vi only)
6
I IN 1 +
High differential current input
7
COM 1 -
Low differential input, voltage & current, analog ground
8
V IN 2 +
High differential voltage input (-INI4vi only)
2
9
I IN 2 +
High differential current input
10
COM 2 -
Low differential input, voltage & current, analog ground
11
SHIELD 2
Chassis ground
12
SHIELD 3
Chassis ground
3
13
V IN 3 +
High differential voltage input (-INI4vi only)
14
I IN 3 +
High differential current input
15
COM 3 -
Low differential input, voltage & current, analog ground
The shields are all internally connected to chassis ground through high-
voltage capacitors.