Extron Electronics MVC 121 - Manual (Page 14)

MVC 121 • Installation and Operation
Installation and Operation
Mounting the MVC 121
The one rack unit high, quarter rack wide MVC can be set on a
table, mounted on a rack shelf, mounted under a desk or
tabletop, or mounted on a projector bracket.
Tabletop use
Each MVC comes with rubber feet (not installed). For tabletop
use, attach a self-adhesive rubber foot to each corner of the
bottom of the unit.
UL rack mounting guidelines
The following Underwriters Laboratories (UL) guidelines
pertain to the safe installation of the MVC 121 in a rack.
1. Elevated operating ambient temperature — If installed in
a closed or multi-unit rack assembly, the operating
ambient temperature of the rack environment may be
greater than room ambient temperature. Therefore,
install the MVC in an environment compatible with the
maximum ambient temperature (Tma = +122 °F, +50 °C)
specified by Extron.
2. Reduced air flow — Install the equipment in a rack so that
the amount of air flow required for safe operation of the
equipment is not compromised.
3. Mechanical loading — Mount the equipment in the rack
so that a hazardous condition is not achieved due to
uneven mechanical loading.
4. Circuit overloading — Connect the equipment to the
supply circuit and consider the effect that circuit
overloading might have on overcurrent protection and
supply wiring. Appropriate consideration of equipment
nameplate ratings should be used when addressing this
concern.
5. Reliable earthing (grounding) — Maintain reliable
grounding of rack-mounted equipment. Pay particular
attention to supply connections other than direct
connections to the branch circuit (e.g. use of power strips).
2-2