Rack Mounting Guidelines; Mechanical Loading; Ambient Temperature; Circuit Overloading - Motorola DSR-6403 Operator's Manual

Rack Mounting Guidelines

The DSR-6400 Series unit, with the supplied mounting brackets is designed for installation
in an EIA standard 19-inch (480 mm) equipment rack. Place each unit in a stable and level
position within the rack and ensure that all front enclosure screws are tightened to 14 in-
lbs. If multiple DSR-6400 Series units are installed in a rack assembly, the operator may
choose to have a certification agency evaluate the condition of the rack.

Mechanical Loading

The mounting rack location should be secure and level to avoid hazardous instability to the
equipment due to uneven loading or weight distribution within the rack.

Ambient Temperature

When installing a DSR-6400 Series unit within a closed or multi-unit rack, the ambient
temperature may be greater than the ambient temperature within the room. Therefore,
verify that the amount of air flow required for safe operation is not compromised
(maximum temperature for the equipment is 40° C). Consideration should be given to the
maximum rated ambient temperature for the unit's location when planning for cooling and
air circulation. To evacuate the unit's warm air output from within the mounting rack,
Motorola Mobility recommends the use of a fan on top of the rack.

Circuit Overloading

If the unit is connected to a power strip, rather than a branch circuit's direct connection, use
special care to ensure that the unit is properly connected. Always consider the affect that
overloading circuits might have on over-current protection and supply wiring. To ensure
that circuits are not overloaded, read the DSR-6400 Series UL regulatory power label on
top of the unit. Check all equipment power/amperage ratings to ensure the mounting rack
power rating is not exceeded.

Earth Ground

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). The RF-IN antenna cable should only be connected while the unit is
properly grounded. The shield of the coaxial cable should be earthed in YP accordance with
Article 820.93 of the NEC (National Electrical Code), ANSI/NFPA 70:2005, or equivalent.

Battery Replacement

Do not replace the lithium battery used in the unit. Instead, return the unit to a Motorola
Mobility authorized service center for replacement with the same or equivalent type
battery as recommended by the manufacturer.
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DSR-6400 Series