Crestron PAC2M, Руководство по эксплуатации

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Professional Automation Mini Computer Crestron PAC2M
Hardware Hookup
Ventilation The PAC2M should be used in a well-ventilated area. The venting holes should not
be obstructed under any circumstances. If the PAC2M is hot to the touch, consider
using forced air ventilation and/or incrementing the spacing between units.
To prevent overheating, do not operate this product in an area that exceeds the
environmental temperature range listed in the table of specifications. Consideration
must be given if installed in a closed or multi-unit rack assembly since the operating
ambient temperature of the rack environment may be greater than the room ambient
temperature. Contact with thermal insulating materials should be avoided on all sides
of the unit.
Bussing Strip Installation The PAC2M is supplied with a brass bussing strip to facilitate commoning (linking)
of multiple terminal block connections. The bussing strip is constructed with four
terminal block positions and may be trimmed to size for various applications or
different devices.
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.
Connect the Device Make the necessary connections as called out in the illustration on the next page.
Refer to “Network Wiring” on page 10 before attaching the 4-position terminal block
connector. Apply power after all connections have been made.
When making connections to the PAC2M, consider the following:
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Use Crestron power supplies for Crestron equipment.
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Professional Automation Mini Computer: PAC2M Operations Guide – DOC. 6507