Protege PRT-RDM2 Quick Start Manual - page 2
ENCRYPTED MODULE NETWORK
The Protégé Mini Reader Expander incorporates
encrypted RS-485 communications technology.
Connection of the communications should be performed
according to the diagram shown below. 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
power to all of the network powered 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 above and connected
at ONLY one +12V power source.
The EOL (End Of Line) jumper setting MUST
be set in the ON position for the FIRST and
LAST module on the RS485 network. EOL is
ON when the jumper is closest to the EOL
text.
CONFIGURATION SWITCH
The addressing of the Protégé Reader Expander allows up
to 128 devices to be connected to the Protégé System
Controller. The 'CONFIG' configuration DIP switch allows
each reader expander to have a unique address.
The switch positions 1 to 7 select the device address from 1
to 128. When setting an address the reader expander must
be powered down and restarted for the new address to
take affect. When changing the address the reader
expander will automatically default the internal
configuration and require a network update. See the
Protégé System reference manual for information on
performing a module update.
The device address is determined by adding the value of
each switch that is selected in the ON position and then
adding 1 to this value. In the example below the address
079 results in (64+8+4+2) + 1 = 079. Setting all address
switches to OFF results in the default address of 001.
CABINET TAMPER SWITCH
The tamper input switch should be mounted into the steel
bracket provided and connected to the tamper connection
terminals as shown in the diagram below. The tamper input
opens and closes trouble zone RDxxx:01 on the reader
expander.
READER CONNECTION
The Protégé Reader Expander allows the connection of 4
Wiegand reading devices and the ability to control 2 doors
(Entry or Exit Only) or 1 door (Entry and Exit). The
following diagrams show the connection of standard
Wiegand Reader (Entry Unit) and a Multiplexed reader
(Exit Reader).
When operating the reader expander in multiple reader
mode the Protégé Reader Expander allows the connection
of 4 Wiegand reading devices controlling two doors each
with Entry/Exit readers.