B&K CT600 - Manual (Page 25)

Local Source IR Control
B K
&
S B
I M P LY E T T E R !
21
Local IR Source Control
Local source control is accomplished by connecting IR emitters to the Alternate Master [IN] of the keypad.
Local control is not limited to one source, as many as four IR emitters can be wired in series directly from the
keypad. NOTE: Additional resistance will need to be added when running emitters directly from the keypad.
Resistance will vary depending on the distance of the run and the size of the wire used. Typical in line resist-
ance will range from 50
Ω for long runs to 150Ω for short runs. 12V Control voltages for local amplifiers or
other voltage sensing devices may also be terminated directly to the keypad’s Alternate Master [IN] using the
12V control and ground. If resistance is not added, control of shared sources may be lost.
Multiple emitters should be con-
nected in SERIES!
Most common brands of emitter can
be used, however all Emitter output
more consistent levels when con-
nected in series. Parallel connec-
tions may work “some of the time”.
Series connections are recom-
mended for consistent operation!
Standard 2 conductor 16 gauge
speaker wire is ideal for long runs
from the keypad to a Local TV or
device using an IR emitter. Utilizing
CAT 5 cable will also work well.
Note: Additional resistance
needs to be added when running
a flasher directly off a keypad.
Resistance will vary depending
on length of run usually between
(50
Ω Ω - 150Ω Ω). The resistor needs
to be wired in series with the
flashers. This can either be on
the + or - side of the connection.
You will know if you need addi-
tional resistance if the keypad is
not able to control the shared
sources connected to any of the 9 IR
outputs.
Home run to CT back panel