Keyscan CA8500B - OCB-8 Relays - Normal and Reversed; Table 4 - List of Relay States

Keyscan Inc. – Technical Guide (PC109x - 07.15)
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OCB-8 Relays - Normal and Reversed
OCB-8 relay boards have DIP switches that set the relay to “normal” or “reversed”. Each relay has an LED that
indicates the relay status. The following table reviews each output type in normal and reversed states.
Table 4 - List of Relay States
Device
DIP Switch
Status
Possible
Schedule
Status
LED
State
N.C. Relay
State
N.O.
Relay
State
Door Relay
Normal
Unlocked
ON
Door Relay
Normal
Locked
OFF
Door Relay
Reversed
Unlocked
ON
Door Relay
Reversed
Locked
OFF
Aux Output
Relay
Normal
Door Held
Open Alarm
-
Aux Output
Relay
Normal
Alarm
Tripped
-
Aux Output
Relay
Reversed
Door Held
Open Alarm
-
Aux Output
Relay
Reversed
Alarm
Tripped
-
Aux Output
Relay
Normal
OFF
Aux Output
Relay
Normal
ON
Aux Output
Relay
Reversed
OFF
Aux Output
Relay
Reversed
ON
Pre-alert Relay
Normal
Activated
-
Pre-alert Relay
Normal
Normal
-
Pre-alert Relay
Reversed
Activated
-
Pre-alert Relay
Reversed
Normal
-
Accessibility
Relay
Normal
Activated
-
Accessibility
Relay
Normal
Normal
-