Extron electronic PS 124 installation manual Installing the PS, UL rack mounting guidelines

Installing the PS 124

There are several optional accessories for mounting the PS 124. They include the following Extron part numbers:

•RSU 129 1U 9.5" Deep Universal Rack Shelf (part #60-190-01)

•RSB 129 1U 9.5" Deep Basic Rack Shelf (part #60-604-01)

•MBU 125 1U Under-Desk Mounting (part #70-077-01)

•PMK 350 Low Profile Pole Mount Kit for Multiple Products (part #70-563-03)

Additional mounting options may be found on the Extron website at www.extron.com

UL rack mounting guidelines

The following Underwriters Laboratories (UL) guidelines pertain to the installation of the PS 124 into a rack.

•Elevated operating ambient temperature — If the equipment is installed in a closed or multiunit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient temperature.

Therefore, consider installing the equipment in an environment compatible with the maximum ambient temperature (Tma) specified by the manufacturer. For the PS 124, the Tma is 122 °F (50 °C).

•Reduced air flow — Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised.

•Mechanical loading — Mounting of the equipment in the rack should be such that a hazardous condition is not created due to uneven mechanical loading.

•Circuit overloading — Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.

•Reliable earthing (grounding) — Reliable earthing of rack-mounted equipment should be maintained. Particular attention should be given to supply connections other than direct connections to the branch circuit (e.g. use of power strips.

PS 124 12 VDC, 4 Amp Power Supply • Installation Manual 9