Extron electronic ISM 824 manual Mounting the Switcher, Tabletop placement, Rack mounting

Mounting the Switcher

If the ISM 824 is to be rack mounted, it is important to mount it before cabling it. Four uninstalled rubber feet are included with the ISM 824. 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 requirements for rack mounted devices

The following Underwriters Laboratories (UL) requirements pertain to the safe installation of the

ISM 824 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 ISM 824 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).

Rack mounting

To rack mount the ISM 824, use two screws on each end of the switcher to attach the switcher to the rack (see figure 2-1).

Figure 2-1 — Mounting the ISM 824 Multiswitcher

ISM 824 Integration Scaling Multiswitcher • Installation 2-3