1
Modules & Connecting Blocks
INSTALLATION INSTRUCTIONS
793-10
SERIAL CONTROL COMBINER
Many brands of audio/video equipment provide a means of linking an audio receiver to a CD player to a tape
deck, etc., so that infrared control signals sent to the audio receiver will control the other devices as well.
This capability is often in the form of a serial data network where one pair of wires is “daisy-chained” from
device to device to device. The most common connecting link usually employs the 3.5mm miniature phone
plug.
In multi-zone systems, the audio receivers respond only to infrared control signals from a single zone, while
the common source equipment, such as CD players, tape decks, etc., must respond to control signals from
all zones. The 793-10 connects to the Control Output (Network Out, Serial Out, etc.) jacks on each audio
receiver (up to five per 793-10) and combines the signals so that a stack of source equipment can be
controlled. The serial control command signals are isolated with diodes in the 793-10 so that the audio
receivers do not interfere with each other. If more than five audio receivers are used, multiple 793-10’s can
be connected together.
The 793-10 has five
CONTROL INPUTS
jacks which are connected to the Control Output (Network Out,
Serial Out, etc.) on the audio receivers by two-wire cables with 3.5mm miniature phone plugs on each end.
Connect the
A
jack, near the marking
CONTROL OUTPUTS
, to the Control or Serial
input
on one of the
source devices using the same type of cable. If more than one source device is used, they should be “daisy-
chained” in the usual manner. For more zones than five, use the
B
jacks, near the marking
CONTROL
OUTPUTS
, to connect from one 793-10 to another using the same type of cable described above.
The ten
LOGIC POLARITY SELECTOR
switches configure the 793-10 to respond to the control signal
polarity
used by the particular brand of equipment. Since the 793-10 can only be used in single-brand
installations, all of the switches are set together.
• For
Active Low
equipment such as Pioneer, Luxman and Denon, set switches 1, 3, 5, 7, and 9
ON
and
switches 2, 4, 6, 8, and 10
OFF
.
• For
Active High
equipment such as some models of Marantz, Philips and Sony, set switches 1, 3, 5, 7,
and 9
OFF
and switches 2, 4, 6, 8, and 10
ON
.
NOTE:
The 793-10 works with single-brand installations only and requires no power supply.
5-29-97
