Chapter 7 Multiservice Switch 7480 installation 77
Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2
Multiservice Switch 7480 installation supporting
information
Site preparation
Site preparation means planning ahead for the location of equipment, and
preparing the site for anchoring a cabinet or rack. See the appropriate sections
for more information.
• “Site preparations for all installations” (page 77)
• “Site preparation for a Multiservice Switch cabinet” (page 78)
• “Site preparation for a seismic cabinet” (page 80)
• “Site preparation for a 19-inch rack” (page 78)
Site preparations for all installations
As part of site preparation for installing a Nortel Networks Multiservice
Switch
7480, consider the following:
• Space and environmental requirements as outlined in NN10600-170
Nortel Networks Multiservice Switch 7400 Hardware Description.
Ensure that there is sufficient clearance around all equipment for
ventilation and physical access. External cooling units may be required
in rooms that contain a large number of network equipment. The floor
plan must also allow sufficient room for other necessary equipment, (for
example, a local operator terminal, modem, or test equipment.
• Check your local building regulations and the technical specifications for
the device, termination panels, cabinets, grounding, and so on, in
NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware
Description.
• Where there is a risk of tampering, ensure that you can lock the room.
• To satisfy safety requirements, you must connect ac grounds from all
equipment (including cabinets, termination panel cabinets, and local
operator terminal), and external dc grounds to a single distribution panel
ground point. For
Multiservice Switch ac powered devices, the ac power
supply requires its own individually-fused electrical outlet. The power
supply for each device must also be within 3
m (10 ft) of the electrical
outlet. Do not use extension cords.
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