DMP Electronics 734B, Installation And Programming Manual

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Digital Monitoring Products, Inc. | 734B Installation and Programming Guide 7
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 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 Figure 5
and Figure 6 for isolation relay wiring.
3
RED
PROG
J2
RED
J5
RED KYPD IN
J4
KYPD OUT
J1
DATA
XMT LED
WIEGAND
READ LED
RELAY
ON
NC C NO
GRN YEL RED
+ –
Piezo
Model 333
Suppressor
Normally Open
– +
Magnetic Lock
– +
Isolation Relay
To Panel
Keypad Bus
12/24 VDC
Power
Supply
NC C NO
Figure 5: Magnetic Lock with an Isolation
Relay
RED
PROG
J2
RED
J5
RED
KYPD IN
J4
KYPD OUT
J1
DATA
XMT LED
WIEGAND
READ LED
RELAY
ON
NC C NO
GRN YEL RED
+ –
Piezo
Model 333
Suppressor
Normally Open
– +
DC Door Strike
– +
Isolation Relay
To Panel
Keypad Bus
12/24 VDC
Power
Supply
NC C NO
Figure 6: Door Strike with an Isolation
Relay