Cisco CRS-1 - Manual (Page 45)

3-5
Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Site Planning Guide
OL-5802-09
Chapter 3 Technical and Environmental Specifications
Equipment Rack Specifications
Equipment Rack Specifications
Rack Dimensions
Height Available aperture in rack for two chassis in a single rack:
• 78.6 in. (199.6 cm)
Width Vertical posts:
• 19.5 in. (49.5 cm) inside-to-inside minimum
• 23.6 in. (60.0 cm) outside-to-outside maximum
Depth Exterior of four-post rack:
• Optimal: 27 in. (68.6 cm), for best access to mounting hardware
• Optional: 30, 36, or 42 in. (76.2, 91.4, or 106.7 cm) and other
standard depths allowed, allow less space for cable management
Equipment Rack Specifications (continued)
Load (weight) rating The rack must support the following weights and specifications:
• 650 lb. (294.8 kg) single chassis with full cosmetics
• 1300 lb. (589.7 kg) two chassis, each with full cosmetics
• 95 lb. (43.0 kg) or more for each chassis for cabling
• Additional weight of other components in rack
Note ANSI specification T1.336 (2003), which defines static load
and safety margins, recommends that racks be designed to
support at least two times the anticipated load.
Note See ANSI specification T1.329 (2002) for dynamic load
requirements and earthquake resistance specifications.
Chassis and rack footprint
(floor contact area)
5.9 sq. ft. (0.55 sq. m), 23.6 in. rack width by 36 in. chassis length
(60 cm rack width by 91.4 cm chassis length)
Maximum floor loading 600 lb/4.5 sq. ft. = 133 lb/sq. ft. (without cosmetics)
272.2 kg/4134.2 sq. cm = 0.07 kg/sq. cm
650 lb/4.9 sq. ft. = 132.7 lb/sq. ft. (with cosmetics)
294.8 kg/4580.1 sq. cm = 0.06 kg/sq. cm
Note Be sure to include the weight of the rack when you consider
floor loading requirements. The above numbers do not
include rack weight.
Table 3-3 8-Slot Line Card Chassis and Equipment Rack Specifications (continued)