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Rack Mounting
For optional rack mounting, do not install the rubber feet. Mount the SMD101 on a 19inch
universal or basic rack shelf. Follow the instructions included with the rack mount kit to
install the SMD101.
UL Rack Mounting Guidelines
The following Underwriters Laboratories (UL) guidelines pertain to the safe installation of the
SMD101 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 can be greater
than room ambient temperature. Therefore, install the unit 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).
Furniture Mounting
Furniture mount the SMD101 using an optional under-desk or through-desk mounting kit.
Follow the instructions included with the mounting kit.
Table or Wall Mounting
Extron table or wall mounting brackets extend approximately 1/4 inch (6.4 mm) above the
top surface of the SMD101 enclosure. This design allows for an air space between the
mounting surface and the enclosure. Follow the instructions included with the mounting kit.
SMD101 • Reference Information 82