Specifications

110 Module 127: Protege DIN Rail Hardware Configuration | DIN Rail Hardware Setup
When a PSU-DIN is dedicated to module network power, both outputs can be wired in parallel. In this
configuration, a maximum module network load of 4A can be supplied. This includes all expanders and
connected ancillary devices such as readers and PIRs.
PRT-CTRL-DIN PRT-PSU-DIN
Gel Cell Backup Battery
NAN+ N- NB
+
-
To other modules
on network
Mains Input
V2+
V-
NAN+ N- NB
LN
V2+ V2+ V2+ V2+ V2+
V- V- V- V- V-
V1+
V-
V1+ V1+ V1+ V1+ V1+
V- V- V- V- V-
B+
B-
The total average PSU loading should be kept below 75% of its rated output. This leaves adequate available
supply for fluctuations caused by peak loading or if a field device should become faulty. It will also extend the
service life of the power supply.
It is recommended that that the power supply used to power the module network is dedicated to this task, and
is not used to power other devices, especially noisy devices such as locks. In a small installation this can be
achieved by a single PSU, so long as the maximum load of the power supply is not exceeded.
PRT-PSU-DIN or
equivalent 12V DC
PRT-CTRL-DIN Network Module Network Module
NAN+ N- NB
NAN+ N- NB NAN+ N- NB
supply