ADVANCE INSTALLATION – MRC88, MRAUDIO8X8 & 780-10 IR Receiver
An additional IR device can be connected to the MRCKPSP. Figure 3 shows an application where an
additional IR receiver is used in the same zone as the two keypads. An external power supply is used
to power both primary and secondary keypads as well the IR receiver. The power jumper must be set
to “EXT”.
EXT
MRC88 Controller (rear)
780-10
IR Receiver
MRC88 Keypad
(primary)
MRC88 Keypad
(secondary)
782-00
Power Supply
MRCKPSP
MRC KEYPAD SPLITTER
CONTROLLER
KEYPAD
2
KEYPAD
1
POWER EXT.
(OPTIONAL)
+12VDC
1 2 3
INT
.
EXT
.
+12V
GND
ST
ATUS
IR IN/OUT
POWER
MRCKPSP
MRC KEYPAD SPLITTER
CONTROLLER
KEYPAD
2
KEYPAD
1
POWER EXT.
(OPTIONAL)
+12VDC
1 2 3
INT
.
EXT
.
+12V
GND
ST
A
TUS
IR IN/OUT
POWER
Figure 3
The keypads should follow the jumper settings as discussed in “BASIC INSTALLATION – MRC88,
MRAUDIO8X8”.
The distance between the MRCKPSP to the MRC88 Keypads is 500 feet maximum. The distance
between the MRCKPSP and the multi-room controller is less than 15 feet. The distance between the
MRCKPSP and the 780-10 is 500 feet maximum.
Since an external power supply is being used, the system must be powered up in a specific
sequence. Apply power to the MRCKPSP before starting the MRC88 Controller.
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3
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