Nortel Media Gateway 3200 User Manual page 34

Note:
Before rack mounting the chassis, attach the two (supplied) brackets to the front sides of
the device. Note that there is an option for two additional brackets to attach the rear sides
of the device to the rack.
To attach the two supplied brackets to the front sides of the
device, take these 3 steps:
1. Remove the 2 screws nearest the front panel on either side of the device.
2. Align a bracket over 2 holes on one side (so that the bracket's larger holes face front)
and with the 2 supplied replacement screws, screw in the bracket.
3. Perform the same procedure on the other side.
To attach the device directly to a 19-inch rack's frame take these 3
steps:
1. Position the device in your 19-inch rack and horizontally align the left-hand and right-
hand bracket holes to selected holes in the vertical tracks of the 19-inch rack.
2. Use standard 19-inch rack bolts (not provided) to fasten the device to the rack tracks.
3. Use two additional (not supplied) rear mounting brackets to better support the unit.
(Optional but Recommended)
User's Manual
Rack Mount Safety Instructions (UL)
When mounting the chassis on a rack, be sure to implement the following
Safety instructions:
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.
Maintain 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 (e.g.,
use of power strips.)
34
MG 3200
Document # LTRT-72704