ICT Protege PRT-RDE2-PCB, Руководство по установке

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PRT-RDE2-PCB Protege Ethernet 2 Reader Expander Installation Manual | June 2017
11
Connection of the communications should be performed according to the diagram shown above. It is important
that the N+ Network Communications Power be supplied from an independent battery backed power supply
unit or a networked module capable of supplying the required voltage to all devices on the RS485 network.
Always connect the Reader Expanders NA and NB terminals to the NA and NB terminals of the communication
network. The N+ and N- must go to a 12V power supply source as shown in the following diagram and
connected at ONLY one +12V power source.
NA
N+
N-
NB
NA
N+
N-
NB
NA
N+
N-
NB
+AUX- Z1 COM COM Z2 Z3 Z4
Protege Integrated System
Controller or module supplying
power to networked devices
AUX power from Module or
external power supply
Next modules
on network
Network Power Supplied By Network Module
Warning: The 12V N+ and N- Communication input must be supplied from only ONE point.
Connections from more than one 12V supply may cause failure or damage to the Reader Expander or
device supplying network power.
i
The EOL (End Of Line) jumper setting MUST be set in the ON position for the LAST module on the
RS485 network. EOL is ON when the jumper is closest to the EOL text.