Wegener Communications DVR396 Equipment Specifications Parameter, Elevated Operating Ambient

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required if the room is cool (<75°F). For higher rack mounting densities, forced-air rack ventilation is strongly recommended. Please note the average per-unit power dissipation of 45 watts (@ max LNB DC current loading) and plan accordingly.

Table 1. Equipment Specifications

Parameter

Specification

Input Rating	115/230 VAC, 0.8/0.5A, 50/60Hz
Operating Temperature Range	5° - 40° C
Operating Humidity	Maximum relative humidity 80% for
	temperatures up to 31° C, decreasing linearly
	to 50% relative humidity at 40° C.
Maximum Operating Elevation	6560 Ft (2000M) above sea level

1.3.3Elevated Operating Ambient

If equipment is installed in a closed or multi-unit rack assembly, the operating ambient of the rack may be greater than the room ambient. Therefore, considerations should be given to the TMRA, or Temperature inside the Mounting Rack, and not just inside the room.

1.3.4Reduced Air Flow

Installation of the equipment in a rack should be such that the amount of airflow required for safe operation of the equipment is not compromised.

1.3.5Mechanical Loading

Mounting of equipment in a rack should be such that a hazardous condition is not achieved due to uneven loading

1.3.6Circuit Overloading

Consideration should be given to connection of the equipment to the supply circuit and the effect that overloading of circuits could have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.

1.3.7Reliable Earthing

Reliable earthing of rack-mounted equipment should be maintained. Particular attention should be given to supply connections other than direct connection to the Branch (use of power strips).

DVR395/DVR396-002 Page 10 of 30