Keyscan CA4500B User Manual

Keyscan Inc. – Technical Guide (PC109x - 07.15)
31
OCB-8 Relay Board
Keyscan’s OCB-8 relay board functions as an output board using form C contacts on both door control units
and elevator control units. The table below outlines board specifications.
Table 3 – OCB-8 Specifications
OCB-8 Specifications
OCB-8 power requirements
12 VDC – 230 mA
Relay outputs
Form C contacts, 30 VDC 5 Amps, 24 VAC 10 Amps
# of outputs
8
Dimensions
8.6 cm x 12.5 cm (3 3/8” x 4 7/8”)
Operating environment
Temperature: 5° C to 49° C (41° F to 120° F)
Humidity: 0% to 90% R.H., non-condensing
For specific OCB-8 relay board output functions refer to Terminating Cables at Door Control Units starting on
page 34 or Terminating Cables at Elevator Control Units starting on page 60.
Figure 20 – OCB-8 Relay Board PC1102
S1
TB1
J1
OUTPUT
CONTROL
BOARD
K1
K2
K3 K4
K5K6K7K8
LE D ON =
RELAY
ENE RGIZED
O
N
1 2 3 4 5 6 7 8
ACU
EXT
12 V
GND
H1
TB2
TB3
TB4
OCB8
PC1102
RELAY
REV.
NORMAL
KEYSCAN
INC.
RELAY
#1
RELAY
#2
RELAY
#3
RELAY
#4
RELAY
#8
RELAY
#7
RELAY
#6
RELAY
#5
OCB-8 Legend
Relay # / Terminal / DIP Switch
Relay #1 – K1 / DIP switch #1
Relay #2 – K2 / DIP switch #2
Relay #3 – K3 / DIP switch #3
Relay #4 – K4 / DIP switch #4
Relay #5 – K5 / DIP switch #5
Relay #6 – K6 / DIP switch #6
Relay #7 – K7 / DIP switch # 7
Relay #8 – K8 / DIP switch #8
Power
J1 – ACU powered by ribbon cable on H1
J1 – EXT powered by 12VDC supply on TB5
Relay – Normal/Reversed
DIP switches at B1 – see above for relay
assignments
KI-00538-05-15

Keyscan CA4500B Specifications

General

Brand	Keyscan
Model	CA4500B
Category	Control Unit
Language	English