TransCore 05716 Manuel D’Utilisation

The MPRR communicates through RS

–

232 protocol.

You need the following materials to connect the communications cable to the host 
device:

Host device

Any terminal emulation program such as Procomm Plus™ or Hyper Terminal™ 
running on a PC

If the MPRR is connected directly to a TRU, all communications connections are 
made through the MPRR-to-TRU cable assembly.

MPRR communications and customer interface signals are supplied from the MPRR 
to the host through a multiwire cable. The connector for this cable is located on the 
end of the MPRR. 

Plug one end of the MPRR communications/power interface connector into the DB15 
connector at the MPRR and the other end, using the customer-supplied wiring, into the 
host device.

The MPRR has two sense input circuits and a tag lock output circuit available. Sense0 
is used to enable RF on antenna ports 0 and 1 if enabled, and Sense1 is used to enable 
RF on antenna ports 2 and 3. The sense input circuits can be used to notify the 
MPRR of train presence and are designed to be connected to a free-of-voltage dry 
contact. The tag lock output circuit is a single-pole, double-throw relay that provides a 
normally closed and normally open dry contact. The relay contact is rated at 42.2V 
AC peak (30 Vrms) or 60V DC at 1 A maximum. If controlling an external gate or 
device requiring high current, an isolation transformer is required.

The MPRR supports two sense inputs 

–

 sense input0 and sense input1 

–

 which require 

two sense input lines (SENSEx and GND) for each loop sense or a total of four sense 
input connections. Sense input0 is the presence detection and is used to control RF