Encrypted Module Network
The Power Supply incorporates encrypted RS-485 communications technology. Network power is supplied by
the N+ and N- terminals. Connection of the communications and network power should be performed according
to the diagram shown. It is important that the N+ network communications power be 12VDC supplied from an
independent battery backed power supply unit or a networked module capable of supplying the required
voltage to all devices on the RS-485 network.
N
A
N
+
N
-
N
B
Network communications input
from the Controller or previous
module
Standard Communications Connection
Always connect the Power Supply NA and NB terminals to the NA and NB terminals of the communication
network.
N
A
N
+
N
-
N
B
N
A
N
+
N
-
N
B
Next module
on network
Controller or module supplying
power to networked devices
AUX power from module or
external power supply
N
A
N
+
N
-
N
B
+ AUX -
Z1 COM
COM
Z2
Z3
Z4
Network Power Supplied by Network Module
The diagram above shows a power connection taken from the auxiliary power outputs on the Power Supply's
input terminals. This connection is suitable for smaller systems provided that the:
⦁
Maximum total output current,
⦁
AUX DC output current,
PRT-PSU-DIN-8A | Protege DIN Rail 8A Intelligent Power Supply | Installation Manual
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