Paradyne 8820, Руководство по установке

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8820-A2-GN20-80 November 2004
2-1
2
Installation
Preinstallation Considerations
Consider the following before installing the 8820 BAC:
„
Installation Site
Your installation site should be well ventilated, clean, and free of
environmental extremes. There should be 2 to 3 feet (61 to 91.5 cm) of
clearance at the front of the rack in which the chassis is to be installed to allow
access for the installation of the chassis, circuit cards, and cables. Also allow a
minimum of 4 inches (10 cm) at the rear of the rack for proper venting and
cabling space (see
Cabling on page 2-2). If the BAC is the only
heat-generating equipment in the rack, allow at least 4 inches (10 cm)
between the back of the rack and a solid wall. Otherwise, allow at least
6 inches (15 cm). Take care that other equipment does not blow hot air into the
front and side air intakes on the BAC.
„
Power
The BAC operates from a standard CO 48 VDC power supply (or, for the
model 8820-A2-530 only, a 48 or 60 VDC power supply). The power source
wires must be 8 AWG, solid or stranded.
„
Grounding
A copper lug connector is attached to the back cover of the chassis near the
bottom-center area. It accepts 8 AWG wire for grounding, which meets NEBS
requirements.
„
Card Installation
It is recommended that you install BAC cards in contiguous slots to simplify
the use of the multislot filler panels. Make sure that any empty slots are
covered.