Power Shelves

2 AC or 2 DC power shelves(cannot mix AC and DC power shelves in the chassis)

DC power shelf

Accepts up to 4 DC PMs

AC power shelf

Accepts up to 3 AC PMs

Maximum Power Consumption

This represents total input power.

Maximum DC

9.5 kW (assuming 88% efficiency)

Maximum AC

9.8 kW (assuming 92% efficiency)

DC Power Lug Torque Ranges

Minimum torque

20 in-lb (2.2 N-m)

Maximum torque

30 in-lb (3.3 N-m)

Power Redundancy

DC

2N: Up to four A battery plant feeds and up to four B battery plant feeds required.

AC

2N: Up to three A AC single-phase power sources and up to three B AC single-phase power sources required.

Inrush current

DC

90 Apk max

AC

30 Apk max

DC Input

Nominal input voltage

–48 VDC North America–60 VDC International(range –40 to –72 VDC)

Input current

50 A max @ –48 VDC40 A max @ –60 VDC60 A at –40 VDC (maximum)

AC Input

Input voltage

Single-phase 200 to 240 VAC (nominal)(range 180 to 264 VAC)

Line frequency

50 to 60 Hz (nominal)(range 47 to 63 Hz)

Recommended AC service

16 A

Temperature

Operating, nominal: 41° to 104°F (5° to 40°C)Operating, short-term: 23° to 122°F (–5° to 50°C)Nonoperating: –40° to 158°F (–40° to 70°C)

Humidity

Operating: 5 to 85% noncondensingNonoperating: 5 to 90% noncondensing, short-term operation

Altitude

1 to 5,906 ft (-60 to 1,800 m) at 122°F (50°C), short-termUp to 13,123 ft (4,000 m) at 104°F (40°C) or below

Heat dissipation

27,350 BTUs/hr

External cooling requirements

2.3 tons

Acoustic noise

74 dB at 3.28 ft. (1 meter) in front of chassis (nominal reading at room temperature)

Shock

Operating: 5 to 500 Hz, 0.5g¹ (0.1 oct/min)² Nonoperating: 5 to 100 Hz, 1 g (0.1 oct/min)100 to 500 Hz, 15 g (0.2 oct/min)500 to 1000 Hz, 1.5 g (0.2 oct/min)

Vibration

Operating: 0.35 Grms³ from 3 to 500 HzNonoperating: 1.0 Grms from 3 to 500 Hz

Chassis Dimensions

Height

38.5 in. (97.8 cm)

Width

17.5 in. (44.5 cm) 18.9 in. (48.0 cm) mounting rail flange, outside to outside

Depth

36.6 in. (93.0 cm) without cosmetics40.5 in. (102.9 cm) with full cosmetics

Chassis Weight

Chassis shipping weight

418.3 lb. (189.7 kg) chassis with shipping crate and pallet330.8 lb. (138 kg) chassis with fans, PDUs, and blanks (as shipped)

Chassis with all cards and power modules, no cosmetics

600 lb. (272.2 kg)

Chassis, fully loaded with line cards and full cosmetics

650 lb. (294.8 kg)

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

Chassis and rack footprint(floor contact area)

5.9 sq. ft. (0.55 sq. m), 23.6 in. rack width by 36 in. chassis depth

(60 cm rack width by 91.4 cm chassis depth)

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

Rack Anchoring

General considerations

• The rack must be bolted to the floor. For more information, see the Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router Unpacking, Moving, and Securing Guide.
• Consider floor and overhead anchoring requirements for the site, and size and load capacity of anchors and floor structure.
• Make sure that floor mounting bolts are accessible, especially if annual retorquing of bolts is required.

Floor mounting holes

• Outrigger L-brackets: Depends on chosen rack
• Internal frame holes: Depends on chosen rack

Chassis Clearances

Two chassis in a single rack

0.5-in. (1.27 cm) between chassis for horizontal shelf brackets

Front and rear of chassis

40.4-in. (102.6 cm) for chassis installation36-in. (91.4 cm) for service access and airflow

Inlet and exhaust openings on chassis and power modules

6-in. (15.2 cm)

Top of chassis

No overhead clearance for a single chassis. Two chassis in a rack requires 0.5-inch (1.27 cm) between chassis for mounting rails.

Mounting Rails and Hardware

Rail openings (aperture)

• 17.75 in. (45.1 cm), side to side
• 22.8 in. (57.9 cm), front to back (adjustable or fixed)

Horizontal mounting rails

The equipment rack should contain horizontal mounting rails to place the chassis on. The mounting rails, which must be able to hold at least 650 lb (294.8 kg), support the weight of the chassis.

• A set of brackets is included in the chassis installation kit, which is available as an option (CRS-8-INSTALL-KT=). Install these brackets and place the chassis on them. For details, see the Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router Unpacking, Moving, and Securing Guide.

Mounting holes

EIA standard mounting-hole spacing:

• 18.25-inches to 18.31-inches (46.36 to 46.51 cm), center-to-center horizontal spacing
• 0.5 + 0.625 + 0.625-inches (1.27 + 1.59 + 1.59 cm),vertical-hole-spacing pattern; repeats on 1.75-inch (4.45 cm) pitch ETSI racks have mounting rails with EIA standard spacing.

Mounting screws

• 48 screws for each chassis, 12 screws in each of 4 vertical rails, installed in holes with tick marks
• Number 10-32 x 5/8 in. long socket head cap screws (sixty screws provided with the chassis)

Compliance

Make sure that the rack complies with all appropriate standards for your geographical area—for example, NEBS Seismic Zone 4 (GR-63-CORE, Sections 4.4.1 and 4.4.2).

Additional Rack Considerations

Interface cables

When choosing a rack, consider cabling needs (chassis front). Allow at least 95 lb (43.1 kg) weight for each chassis for cables.