GE WESDAC D20 C Input module

The D20 Status module is composed of two detachable modules, WESTERM D20 S and WESDAC D20 S. The bottom module, WESTERM D20 S, is where all field wirings are terminated. The top module, WESDAC D20 S, processes the data acquired and communicates this to the main D20 processor, see Figure 2.
The WESTERM D20 S module is the termination for the WESDAC D20 S status input module. All field, I/O, and power terminations for the WESDAC D20 S are made on the WESTERM D20 S. Up to 64 digital inputs can be accommodated on the compression type terminations. Through the use of voltage dropping resistors, inputs in the range of 12 VDC to 130 VDC can be handled. Capacitors and varistors are equipped to provide Surge Withstand Capability (SWC) as well as impulse protection on all field inputs. The inputs are separated into 8 groups of 8 status inputs each. Each group has its own common return and is electrically isolated from the other groups. Inputs are provided with two compression type terminals for field connections.