Figure 128 - Pre-Alert Relay Ca8500B/Ocb-8 Connections - Keyscan CA250 Series Technical Manual

Figure 128 – Pre-alert Relay CA8500B/OCB-8 Connections
CA8500B
Control Board
cable connects to
Cut View
KI-00232E-07-11
Keyscan Technical Guide (PC109x - 04.12)
K8
Normal
J1
OCB-8 ribbon
to
J8
CONTROL 3.
Reversed
ACU EXT
J9
PWR
red stripe
GND
12V
OCB-8 powered
through ribbon
cable with J9 set to
ACU PWR.
K1
K7 K6 K5
Pre- Pre- Pre-
Alert Alert Alert
Output Output Output Output
8 7 6
J7 J6
J8
OCB-8
J1 J2 J3
Pre- Pre- Pre-
Alert Alert Alert
Output Output Output Output
1 2 3
K2 K3 K4
DC Supply
+ -
External pre-alert device mounted at door
Pre-
Alert
5
J5
J4
Pre-
Alert
4
166