RAD Data comm LRS-24 - Manual (Page 91)

LRS-24 Installation and Operation Manual Appendix B LRS-PS-FEED Power Supply
Site Requirements B-3
DC Power
DC-powered LRS-PS-FEED units require a –48 VDC power source.
No power switch is provided for the DC power supply modules, and therefore it is
recommended to connect the DC power to the LRS-PS-FEED through a circuit
breaker located close to the LRS-PS-FEED, that will also permit turning off the power
to the LRS-PS-FEED.
Grounding
For your protection and to prevent possible damage to equipment when a fault
condition (e.g., lightning stroke or contact with high-voltage power line) occurs
on the lines connected to the equipment, the LRS-PS-FEED case must be
properly grounded at all times. Never connect cables to an LRS-PS-FEED that is
not properly grounded.
Any interruption of the protective (grounding) connection inside or outside the
equipment, or the disconnection of the protective ground terminal makes this
equipment dangerous. Intentional interruption is prohibited.
Before switching on this equipment and before connecting any other cable,
connect the protective ground terminal of the enclosure to a protective
ground.
LRS-PS-FEED units are grounded through the protective (grounding) conductor
of the power cable.
When LRS-PS-FEED is installed in racks, the rack itself should also be
grounded in accordance with standard practice and the locally applicable
regulations. Installing the unit in a grounded rack provides additional
protection against fault conditions.
Front Clearance
Allow at least 90 cm (36 inches) of frontal clearance for operator access.
Ambient Requirements
The ambient operating temperature of the LRS-PS-FEED should be 32° to 113°F
(0° to 45° C), at a relative humidity of up to 90%, non-condensing.
Cooling
LRS-PS-FEED units are cooled by free air convection. The cooling vents are located
in the top and bottom covers. Do not obstruct these vents. Allow at least 1U of
space below and above the unit.
Note
Warning
Order from: Cutter Networks Ph:727-398-5252/Fax:727-397-9610 www.bestdatasource.com