Alcatel-Lucent 7705 SAR-A, Installation Manual

Page: 57 / 154

Site Preparation
7705 SAR-A Chassis Installation Guide 57
The following rack requirements must be met:
• The rack must be constructed using channel or angle rack uprights that are at least
1.25 in. (3.2 cm) deep and 5 in. (12.7 cm) wide (maximum) (see
Figure 11 ).
• For seismic applications, the rack must be an approved Seismic Frame.
• The rail mounting holes in the equipment rack must align with the mounting holes on
the chassis mounting brackets. The 7705 SAR-A mounting brackets are
factory-installed for a NEBS mount in a 19-inch rack.
• When installed in the rack, the 7705 SAR-A chassis requires a minimum air
movement of 0.5 m/s in order to maintain proper thermal performance up to
149
°
F (65
°
C).
Chassis Location Requirements
Allow at least 1.75 in. (4.4 cm) clearance above and below and at least 2 in. (5.1 cm) clearance
on the sides of the chassis for proper airflow. Allow at least 2.5 in. (6.4 cm) at the front of the
chassis for cable management. The clearances are shown in
Figure 11 and described in
Table 9 .
Warning: Failure to comply with the location requirements outlined in Installation Locations
and Chassis Location Requirements may impede proper airflow, which may result in
equipment failure due to overheating.