Isolation Relay (Optional) - DMP Electronics 734INT Installation And Programming Manual

3

Isolation Relay (optional)

The Form C relay can control a device that draws less than 10 Amps of current. If a
device draws more than 10 Amps 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 Figure 5
and Figure 6 for isolation relay wiring.
NO C
Model 333
Suppressor
+
Normally Open
12/24VDC
Power
Supply
+ Normally Closed
–
Figure 5: Magnetic Lock with an Isolation
Digital Monitoring Products, Inc.
734
Series
Module
NC
RED YEL GRN
PROG RED KYPD IN RED
RELAY WIEGAND DATA
ON READ LED XMT LED
+
Common
+ –
Magnetic Lock Isolation Relay
NO C NC
+
–
Relay
| 734INT Installation and Programming Guide
Model 333
Suppressor
PIEZO
+ –
Normally Open
KYPD OUT
To Panel
Keypad
Bus
12/24VDC
Power
Supply
M a g n e t i c L o c k
Mag Lock
+ –
Figure 6: Door Strike with an Isolation
734
Series
NO C NC Module
RED YEL GRN
+ PROG RED
RELAY WIEGAND DATA
ON READ LED XMT LED
+
Common
+ –
Magnetic Lock Isolation Relay
NO C NC
+ Normally Open
–
Relay
PIEZO
+ –
KYPD IN RED KYPD OUT
To Panel
Keypad
Bus
M a g n e t i c L o c k
DC Door Strike
+ –
+
–
7