Crestron electronic Crestron MC2E - Manual (Page 15)

Crestron MC2E 2-Series Compact Control System
Ear Attachment for Rack Mounting (this image shows a 1RU device)
USE COVER SCREWS
4. Repeat procedure (steps 1 through 3) to attach the remaining ear to the
opposite side.
Bussing Strip Installation The 2-Series compact control system is supplied with two brass bussing strips to
facilitate commoning (linking) of multiple terminal block connections. The bussing
strips are constructed with four terminal block positions and may be trimmed to size
for various applications or different devices. One strip is supplied for the 8-position
terminal block (four relays).
1. To utilize the bussing strip, determine the number of relays to be commoned
for the equipment being installed. If less than four, 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 of 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. Tighten the
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 provide
strain relief for the wires connected to the terminal block.
Stacking Four “feet” are provided with the MC2E so that if the unit is not rack mounted, the
rubber feet can provide stability when the unit is placed on a flat surface or stacked.
These feet should be attached prior to the hookup procedure.
Operations Guide – DOC. 6142A 2-Series Compact Control System: MC2E • 11