Spectrum Controls 1746sc-OAP8I - Manual (Page 21)

Installation Instructions
Isolated-Circuit
Discrete Input and Output Modules
19
1746sc-IC8I
Isolated-Circuit 48 Vdc Inputs (8)
VDC
0+
VDC
1+
VDC
2+
VDC
3+
E-GND
VDC
4+
VDC
5+
VDC
6+
VDC
7+
IN 0–
IN 1–
IN 2–
IN 3–
E-GND
IN 4–
IN 5–
IN 6–
IN 7–
VS0 DC COM 0
VS0 +VDC
Alternative
input device
location
48 Vdc*
VS1 DC COM 1
VS2 DC COM 2
VS3 DC COM 3
VS4 DC COM 4
VS5 DC COM 5
VS6 DC COM 6
VS7 DC COM 7
Rack mounting bolt
VS1 +VDC
VS2 +VDC
VS3 +VDC
VS4 +VDC
VS5 +VDC
VS6 +VDC
VS7 +VDC
Note — The input circuits are electrically isolated from each other (the commons are NOT connected
internally). Therefore, up to eight different voltage sources (VS0–VS7) may be used.
* Inputs are bipolar and may be connected without regard to polarity.
Module ID Code = 324