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Mounting
The Mounting section describes:
• UL Rack Mounting Guidelines
• Tabletop Mounting
• Rack Rail and Under-Furniture Mounting
• Rack Shelf Mounting
UL Rack Mounting Guidelines
The following Underwriters Laboratories (UL) guidelines pertain to the safe installation of the
BUC 202 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 BUC 202 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 (as an example, use of power strips).
Tabletop Mounting
To mount the unit on a desk or tabletop, set the unit on a tabletop.
Rack Rail and Under-Furniture Mounting
NOTE: To properly mount the BUC 202 on a rack rail or under furniture use the Extron
ZipClip 200 Mounting Clip.
BUC 202 User Guide • Mounting 6