Keyscan Inc. – Technical Guide (PC109x - 07.15)
Terminate Input Wiring
The following sub-headings review termination of door contacts, exit, and auxiliary alarm input wiring.
Door Monitoring Connections
A normally-closed door contact is for monitoring door security. Door inputs are shunted during the door relay
unlock time.
Figure 36 – Terminate Input Wiring – Door Inputs (Contacts)
Cut View of CA8500B
Door Inputs - A RTE Inputs - B
Door 1
8
to
Door
Input
1
Door Contact
to
Common
1K
Single end of line
supervision
to Door Input
1
Door Contact
to Common
1K
Double end of line
supervision
3K
Non-supervised
Notes
Diagram illustrates CA8500B. Connections
also apply to CA250B & CA4500B.
- CA250B – up to 2 door inputs
- CA4500B – up to 4 door inputs
- CA8500B – up to 8 door inputs
Supervision level set in Client software:
System VII & Vantage – Site Unit Setup
Aurora – Hardware Setup
Supervision level applied to all door inputs, RTE inputs, and auxiliary inputs.
NC
COM
NC
COM
NC
COM
76
54321
Common
8
76
54321
AUX Inputs - C
8
76
54321
Common
Common AUX Inputs - D
16
1514
131211109
Common AUX Inputs - E
24
2322
2120191817
KI-00129E-10-13