PRT-MNR2-
D
IN
Protege DIN Rail Module Network Repeater
Quick Start Guide
The Protege DIN Rail Module Network Repeater extends the
network capabilities of the Protege system by allowing modules to
connect to the system via an Ethernet connection, as well as
providing optical isolation between up to three branches of the
module network.
Using the PRT-MNR2-DIN, you can connect modules via the
RS-485 network, and the network repeater can be connected to the
controller using Ethernet. This allows much greater separation and
ease of wiring than previously possible. In addition, the network
repeater has three optically isolated RS-485 branches, easing
power supply requirements.
When receiving this product, you should find the kit contains the
items listed below. If you do not have the correct contents, please
contact your distributor immediately.
Protege DIN Rail Module Network Expander
Protege DIN Rail Module Network Expander Quick Start Guide
3 330R EOL resistors
For more information on the Protege DIN Rail Module Network
Repeater and other Integrated Control Technology products please
visit the ICT website (http://www.ict.co).
1. Power Supply
For devices using hardware revision 010, COM1 can only
be used for supplying power to the network repeater when
the module is connected via Ethernet.
The network repeater provides the connection of up to three
optically isolated RS-485 network stubs. To maintain proper
isolation, each connection requires a separate power supply.
Power to the network repeater is supplied by the N+ and N-
terminals on the COM1 port and is also used for the on-board
electronics and the Ethernet connection.
It is important that the N+ module power is 12VDC supplied from an
independent battery backed power supply unit such as the
PRT-PSU-DIN capable of supplying the required voltage.
NA
N+
N-
NB
Network communications input
from the Protege Integrated
System Controller or previous
Protege module
Standard DC Power Connection
Warning:
The 12V N+ and N- DC power input must be supplied
from only ONE point. Connections from more than one
12V supply may cause failure or damage to the
PRT-MNR2-DIN module.
A 330 Ohm EOL (End of Line) resistor MUST be
inserted between the NA and NB terminals of the
module directly connected to the Module Network
Repeater.
End of Line Resistor
The COM2 and COM3 ports are powered separately and optically
isolated from each other.
2. Encrypted Module Network
For devices using hardware revision 010, you can only use
COM2 and COM3 to create module network spurs when the
network repeater is connected via Ethernet.
The network repeater incorporates encrypted RS-485
communications technology. The isolated communications interface
offers full galvanic isolation to prevent ground loop noise and cross
phase ground differential between network devices on the three
RS-485 ports.
NA
N+
N-
NB
Network communications input
from the Protege Integrated
System Controller or previous
Protege module
Standard Communication Connection
Always connect the NA and NB terminals of the network repeater 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
Next module
on network
PRT-MNR2-DIN
AUX power from module or
external power supply
NA
N+
N-
NB
V-
Z1
V+
Z2
Z3
C
Z4
C
12VDC OUT
ZONE INPUT 1-4
Network Power Supplied by Network Module
NA
N+
N-
NB
NA
N+
N-
NB
Next module
on network
PRT-MNR2-DIN
AUX power from module or
external power supply
NA
N+
N-
NB
V-
Z1
V+
Z2
Z3
C
Z4
C
12VDC OUT
ZONE INPUT 1-4