Figure 127 - Pre-Alert Relay Ca4500B/Ocb-8 Connections - Keyscan CA250 Series Technical Manual

Figure 127 – Pre-alert Relay CA4500B/OCB-8 Connections
CA4500B
Control
Board
Cut View
KI-00231E-07-11
Keyscan Technical Guide (PC109x - 04.12)
Normal
J1
OCB-8 ribbon cable
to
connects to J8
CONTROL 2.
Reversed
ACU EXT
J9
PWR
red stripe
GND
12V
OCB-8
powered
through
ribbon cable
with J9 set to
ACU PWR.
K1
+ -
DC Supply
External pre-alert device
mounted at door.
K8 K7 K6 K5
Pre-
Pre- Pre-
Alert Alert Alert
Output
Output Output
4 3 2
J7 J6
J8
OCB-8
J1 J2 J3
Aux Aux Aux
Output Output Output
7
5 6
K2 K3 K4
Pre-
Alert
Output
1
J5
J4
Aux
Output
8
165