Bracing System Cabinets - Nortel Meridian 1 Planning, Installation And Operating Instructions

Page 62 of 536 Chapter 6 – Bracing cabinets against earthquakes

Bracing system cabinets

553-3121-210 Standard 3.0
The following describes how to brace the cabinets.
1 Determine the size of the backboard.
A backboard large enough to accommodate all the wall-mounted
components is needed. Refer to the equipment layout plan for the site.
Note: An equipment layout plan should have been previously
completed. Refer to
details.
The backboard size should be within the following limits:
Minimum
Maximum
2 Determine fastener requirements
The following information is needed to determine fastener
requirements:
• Type of fasteners needed.
• The minimum embedment of the fasteners into the wall.
• The vertical distance between fasteners.
• The horizontal distance between fasteners.
• For wood and metal stud walls, this requirement is determined
by the spacing between wall studs, which must be within the
following range:
Minimum
Maximum
• The required wall stud sizes for wood and metal stud walls.
January 1999
"Equipment layout plan" on page 38
Backboard size
2 ft by 6 ft (600 mm by 1800 mm)
4 ft by 8 ft (1200 mm by 2400 mm)
Stud spacing
16 in. (400 mm)
24 in. (600 mm)
for further