what are Power Requirements

With all of these devices in the wiring closet, it stands to reason that you are going to need some
power receptacles there. Telecommunications rooms have some unique power requirements.
First of all, each of the many small electronic devices will need power, and a single-duplex outlet
will not have enough outlets. Additionally, these devices should all be on an electrical circuit dedicated
to that wiring closet and separate from the rest of the building. And, in some cases, devices
within the same room may require their own circuit, separate from other devices in that room .
The circuit should have its own isolated ground. An isolated ground in commercial wiring is a
ground wire for the particular isolated outlet that is run in the same conduit as the electricalsupply
connectors. This ground is called isolated because it is not tied into the grounding of the
conduit at all. The wire runs from the receptacle back to the point where the grounds and neutrals
are tied together in the circuit panel. You can identify isolated-ground outlets in a commercial
building because they are orange with a small green triangle on them.

The wiring closet should be equipped with a minimum of two dedicated three-wire 120-volt
AC duplex outlets, each on its own 20-amp circuit, for network and system-equipment power.
In addition, separate 120-volt AC duplex outlets should be provided as convenience outlets for
tools, test equipment, etc. Convenience outlets should be a minimum of six inches off the floor
and placed at six-foot intervals around the perimeter of the room. None of the outlets shall be
switched, i.e., controlled by a wall switch or other device that might accidentally interrupt
power to the system.