Programming Guide

Digital Monitoring Products, Inc. | 1134 Installation and Programming Guide 9
The Form C relay can control a device that draws less than 10 Amps of current. If a device draws
more than 10 Amp of current, or the sum of all devices controlled by the Form C relay exceeds
10 Amps, an isolation relay must be used. Refer to Figures 5 and 6 for isolation relay wiring.
3
ISOLATION RELAY
5 6
7
8
10
11 12 13 14
9
LC
AS Z1 Z2 Z3 Z4
RA
GND GND
NC
C
NO
Model 333
Suppressor
Normally Open
–+
Magnetic Lock
–+
Isolation Relay
12/24 VDC
Power
Supply
NCCNO
GND
Figure 5: Magnetic Lock with
an Isolation Relay
5
6 7
8
10
11 12 13 14
9
LC
AS Z1 Z2 Z3 Z4RA GND GND
NC
C
NO
Model 333
Suppressor
Normally Open
–+
DC Door Strike
–+
Isolation Relay
12/24 VDC
Power
Supply
NCCNO
GND
Figure 6: Door Strike with
an Isolation Relay
(optional)