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Installation
Preinstallation Considerations
Consider the following before installing the Hotwire 8820 GranDSLAM chassis:
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8820-A2-GN20-30
Installation Site
Your installation site should be well ventilated, clean, and free of
environmental extremes. There should be 2 to 3 feet 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
four inches at the rear of the rack for proper venting and cabling space (see
Cabling
on page 2-2). If the GranDSLAM chassis is the only heat-generating
equipment in the rack, allow at least 4 inches between the back of the rack and
a solid wall. Otherwise, allow at least 6 inches. Take care that other equipment
does not blow hot air into the front and side air intakes on the GranDSLAM
chassis.
Power
The GranDSLAM operates from a standard CO 48 VDC power supply
(–42.0 to –57.0 VDC). 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 GranDSLAM cards in contiguous slots to
simplify the use of the multislot filler panels. All DSL cards should be installed
in ascending order in Slots 1 through 8 and 10 through 18.
Make sure that you use the multislot filler plates to cover the empty slots in
between.
March 2001
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2-1
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