3Com manual V7122 Gateway Front View with 19-inch Rack Mount Brackets

To attach the two front side brackets, follow these 3 steps:

1Remove the two screws nearest the front panel on either side of the device.

2Align a bracket over two holes on one side (so that the brackets larger holes face front) and with the two supplied replacement screws, screw in the bracket.

3Perform the same procedure on the other side.

Figure 3 V7122 Gateway Front View with 19-inch Rack Mount Brackets

CAUTION: Rack Mount Safety Instructions (UL)

When installing the chassis in a rack, be sure to implement the following safety instructions recommended by Underwriters Laboratories:

•Elevated Operating Ambient - If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient. Therefore, consideration should be given to installing the equipment in an environment compatible with the maximum ambient temperature (Tma) specified by the manufacturer.

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

•Mechanical Loading - Mounting of the equipment in the rack should be such that a hazardous condition is not achieved 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 - 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 (for example, use of power strips).

14 V7122 Digital Gateway Installation Guide