
26
CONTROL VOLTAGE LOAD RESISTOR
The fitting of a Load Resistor to the system is required to balance the Voltage
Control Line so that communication is received by the appropriate station(s).
Although a Load resistor is provided with each Room Station Only
One
Load
Resistor is required for an entire system.
The Load Resistor should be fitted at the Master Station across the
“Yellow - Voltage Control” terminal and the “Shields - 0V terminal”.
In systems where a Master Station has not been installed, the Load Resistor
should be fitted at the Room station where the power supply has been connected,
across the VLC (YEL) terminal and the Neg (BLK) terminal.
AUX R
AUX L
COM
TAPE L
TAPE R
RED - 13.8V
BLACK - 0V
MASTER
STATION
TERMINATION OF LOAD RESISTOR
ONE RESISTOR TO BE FITTED
AT ONE STATION ONLY
NOTE:
FIT LINK IF
MASTER
REMOVED
FOR
SERVICING
LOAD
RESISTOR
SHLD
MUS2
MUS1
COM2
COM1
AUX
VLC
TC
NEG
POS
VR102 ROOM STATION
GREEN
SHIELDS - 0V
GREY - TIMER CON.
YELLOW - VOLTAGE CON.
WHITE
BLUE
ORANGE
AUXILIARY OUTPUT
MUSIC
COMMS
NOTE:
If the master should ever be removed for servicing, attaching a wire between
the “Black - 0v” terminal and the “Shields - 0V” terminal, will ensure that the
rest of the system will continue to function with the master removed.