Digital Monitoring Products 734N Installation Guide
2
Network Connection
Connect an IP network cable from the LAN/WAN connection to the 734N Network connector. The 734N communicates
AES encrypted TCP with panels with Network installed.
Two LED's are located on the ethernet jack.
• The green LED indicates data sent to the panel.
• The yellow LED indicates the speed of the transmission. A solid yellow LED indicates the network is connected
at 100 Base-T. A ashing yellow LED indicates the network is connected at 10 Base-T.
NO/C/NC (Dry Contact Relay)
The 734N provides a Form C (SPDT) relay for controlling door strikes or magnetic locks. The three relay terminals
marked NO C NC allow you to connect the device wiring to the relay for module control. See Figures 2 and 3 for
proper door strike and magnetic lock wiring.
The Form C relay draws up to 35mA of current and contacts are rated for 10 Amps (resistive) at 12/24VDC.
When connecting multiple locks to the Form C relay, the total current for all locks cannot exceed 10 Amps. If the
total current for all locks exceeds 10 Amps, problems may arise and an isolation relay may be needed.
See the Isolation Relay section for information.
Install the 333 Suppressor
One Model 333 Suppressor is included
with the 734N module. Install the
suppressor across the 734N Common (C)
and Normally Open (NO) or Normally
Closed (NC) terminals.
If the device being controlled by the
relay is connected to the NO and C
terminals, install the suppressor on the
NO and C terminals. Conversely, if the
device is connected to the NC and C
terminals, install the 333 Suppressor on
NC and C terminals.
The suppressor wire is non-polarized. Install the suppressor as shown in Figure 4.
Isolation Relay
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.
734N
Interface
Module
Model 333
Supressor
Model 333 Suppressor
Wire the Suppressor to the Common and Normally
Open or Normally Closed depending upon which
terminals are used for the device.
Figure 4: Model 333 Installation on the 734N Module
Figure 5: Isolation Relay with Magnetic Lock Figure 6: Isolation Relay with Door Strike
Normally
Open
Normally
Open
–+
DC Door Strike
–+
Isolation Relay
12/24VDC
Power
Supply
NCCNO
Model 333
Supressor
Normally
Closed
Normally
Open
–+
Magnetic Lock
–+
Isolation Relay
12/24VDC
Power
Supply
NCCNO
Model 333
Supressor
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