Extron Electronics Annotator User Guide - Manual (Page 13)

Mounting the Annotator
If the Annotator is to be rack mounted, it is important to mount it before cabling it. Four
rubber feet are included with the unit. Install the feet only if the unit is to be mounted on
a table top (see “Tabletop placement” below).
Tabletop Placement
For tabletop placement, install the self-adhesive rubber feet/pads (provided) onto the four
corners of the bottom of the device.
UL Guidelines for Rack Mounted Devices
The following Underwriters Laboratories (UL) guidelines pertain to the safe installation of
the Annotator 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 device in an environment
compatible with the maximum ambient temperature (Tma = +122 °F, +50 °C) as
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 (for example, use of power strips).
Rack Mounting
To rack mount the Annotator, attach brackets to the side of the unit, as shown below, and
secure it to the the rack. See figure below.
Rack Mount
Bracket
Figure 2. Mounting the Annotator
Annotator • Installation 7