Integrated Control System
Crestron
CNMSX
Ear Attachment for Rack Mounting
LEFT SIDE VIEW OF CNMSX-PRO/AV WITH
OPTIONAL RACK MOUNTING EARS INSTALLED
FASTEN WITH THE SAME (3) COVER SCREWS
4. Repeat procedure (steps 1 through 3) to attach remaining ear to opposite
side.
Bussing Strip Installation
The CNMSX is supplied with a brass bussing strip to facilitate commoning (linking)
of multiple terminal block connections. The bussing strip is constructed with eight
terminal block position, and may be trimmed to size for various applications or
different devices. One strip is supplied for each 16-position terminal block.
1. To utilize the bussing strip, determine the number of relays to be
commoned for the equipment being installed. If less than eight, the strip
can be trimmed to size with a pair of scissors or wire snips.
2. Loosen the terminal block screws and insert the first leg of the bussing
strip into the first common position on the terminal block. The strip
engages the other common positions automatically.
3. Remove approximately 1/8" of the jacket from the common wire and
insert the conductor into one of the terminal block common positions.
Tightenthe terminal block screws to lock the wire and bussing strip into
place. Insulate the strip by folding a piece of ¾" wide vinyl electrical
tape (such as Scotch 33+) over the spine and as much of the individual
legs as possible. Excess tape at each end of the strip should be pressed
closed, then trimmed to within approximately 1/16" of the end of the
strip.
4. When wiring the remaining conductors, remove approximately 1/8" of
the jacket and insert the wires into the proper terminal block positions.
To prevent the possibility of electrical shorts, it is essential that these
conductors do not touch any uninsulated portion of the bussing strip.
5. Securing a tie wrap around the bussing strip is a useful way to strain
relieve the wires connected to the terminal block.
Network Wiring
When calculating the wire gauge for a particular network run, the length of the run
and the power factor of each network unit to be connected must be taken into
consideration. If network units are to be daisy-chained on the run, the power factor of
each network unit to be daisy-chained must be added together to determine the power
factor of the entire chain. The length of the run in feet and the power factor of the run
should be used in the following resistance equation to calculate the value on the right
side of the equation.
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Integrated Control System: CNMSX
Operations Guide - DOC. 8118B
