Xantech BXAUDIO4X4 User Manual

Page: 18 

 

Model BXAUDIO4X4 

© 2005 Xantech Corporation 

POWER

POWER

600 feet max (183 m)

IR Receiver

IR Receiver

To 120 V AC

(unswitched)

Power Supply

MRC44

Connecting Block

POWER

POWER

200 feet max (61 m)

MRC44

Connecting

Block

IR Receiver

IR Receiver

POWER

400 feet max (122 m)

IR Receiver

POWER

POWER

200 feet max (61 m)

IR Receiver

A

B

C

D

400 feet max (122 m)

The maximum cable length for CAT5 connections to a single keypad is 400 feet (see Figure 11-A).  For two 
keypads in a zone, the distance to the last keypad is 200 feet (see Figure 11-B). 

If both keypads in the zone are using an external IR receiver, the MRCCB1 Connecting Block (see Figure 
8) is used to expand the connections on the back of the primary keypad as shown in Figure 8-C.

If your installation requires cabling beyond these limits you can use the MRCCB1 Connecting Block to 
power the keypads from a separate run of +12VDC as shown in Figure 8-D.  The +12VDC can also be 
generated in the zone from a model 782 power supply or from a source at the Controller/Amplifier location 
(run an 18 gauge speaker wire to the MRCCB1 Connecting Block to minimize line loss.  This method will
extend the distance to the last keypad in the zone to a maximum of 600 feet. 

The Maximum cable run to the external IR receiver in each of the above cases is 250 feet from the keypad.