Technical and
Environmental Specifications
This chapter summarizes the technical and environmental specifications for the Cisco CRS 8-Slot LCC.
Line Card Chassis Specifications
This table lists the system specifications for the Cisco CRS 8-slot LCC with a fixed configuration power system installed.
Description |
Value |
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Supported Cards and Modules |
8 modular services cards (MSCs) or forwarding processor (FP) cards (line cards) 8 physical layer interface modules (PLIMs), one for each MSC or FP 4 switch fabric cards (SFCs) 2 route processors (RP) cards or performance route processor (PRP) cards 1 distributed route processor (DRP) card (no dedicated slot; installs in open MSC slot) 2 fan trays (with four fans per fan tray) 1 air filter |
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Power Distribution Units |
2 AC (Wye or Delta) or 2 DC power distribution units (PDUs) (cannot mix AC and DC PDUs in the chassis) |
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DC PDU |
Supports 1 DC power entry module (PEM) |
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AC PDU |
Supports 1 AC rectifier module |
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Maximum Power Consumption (total input power) |
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Maximum DC |
8.0 kW (assuming 94% efficiency) |
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Maximum AC |
8.5 kW (Delta or Wye 3-phase) (assuming 88% efficiency) |
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Power Redundancy (2N) |
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DC |
Three “A” battery plant feeds required for one PDU, and three “B” battery plant feeds required for the other PDU. |
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AC (Delta or Wye 3-phase) |
Two independent Delta or Wye 3-phase power sources required, one for each PDU. |
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DC Input |
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Nominal input voltage |
–48 VDC North America–54 VDC Telco (RBOC)–60 VDC International(range –40.5 to –75 VDC) |
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Input current |
56 A at –48/–60 VDC (nominal voltage)66 A at –40.5 VDC (low voltage extreme) |
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AC Input, Delta 3-phase |
3W + PE (3 wire + protective earthing conductor ground wire) |
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Input voltage |
3-phase 200 to 240 VAC, phase-to-phase (nominal)(range 170 to 264 VAC, phase-to-phase) |
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Line frequency |
50 to 60 Hz(range 47 to 63 Hz) |
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Input current(PDU rated for 24 A) |
30 A |
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AC Input, Wye 3-phase |
3W + N + PE (3 wire + neutral + protective earthing conductor ground wire) |
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Input voltage |
3-phase 200 to 240 VAC, phase-to-neutral (nominal)(range 170 to 264 VAC, phase-to-neutral) (range 295 to 457 VAC, phase-to-phase) |
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Line frequency |
50 to 60 Hz (nominal)(range 47 to 63 Hz) |
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Input current (PDU rated for 14 A) |
16 A International 20 A North America |
This table lists the system specifications for the Cisco CRS 8-slot LCC with a modular configuration power system installed.
Description |
Value |
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---|---|---|---|
Supported Cards and Modules |
8 modular services cards (MSCs) or forwarding processor (FP) cards (line cards) 8 physical layer interface modules (PLIMs), one for each MSC or FP 4 switch fabric cards (SFCs) 2 route processors (RP) cards or performance route processor (PRP) cards 1 distributed route processor (DRP) 2 fan trays (with four fans per fan tray) 1 air filter |
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Power Shelves |
2 AC or 2 DC power shelves (cannot mix AC and DC power shelves in the chassis) |
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DC power shelf |
Accepts up to 4 DC PMs |
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AC power shelf |
Accepts up to 3 AC PMs |
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Maximum Power Consumption (total input power) |
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Maximum DC |
9.5 kW (assuming 88% efficiency) |
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Maximum AC |
9.8 kW (assuming 92% efficiency) |
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Power Redundancy (2N) |
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DC |
Up to four “A” battery plant feeds required for one power shelf, and up to four “B” battery plant feeds required for the other power shelf. |
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AC (Delta or Wye 3-phase) |
Up to three “A” AC single-phase power sources and up to three “B” AC single-phase power sources required. |
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DC Input |
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Nominal input voltage |
–48 VDC North America–60 VDC International(range –40 to –72 VDC) |
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Input current |
50 A max at –48 VDC40 A max at –60 VDC60 A at –40 VDC (low voltage extreme) |
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AC Input, single-phase |
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Input voltage |
Single-phase 200 to 240 VAC (nominal)(range 180 to 264 VAC) |
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Line frequency |
50 to 60 Hz (nominal)(range 47 to 63 Hz) |
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Input current |
16 A International20 A North America |
Equipment Rack Specifications
Cisco Systems has tested the Cisco CRS 8-slot LCC to Cisco internal mechanical design verification testing and electrical design verification testing in a four-post seismic rated (zone 4) rack. Use this information for planning only. Consult your Cisco account representative for additional details.
If you plan to install the chassis in your own four-post rack, make sure that the rack meets the specifications summarized in the following table.
8-Slot Line Card Chassis Specifications |
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Chassis Dimensions |
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Height |
38.5 in. (97.8 cm) |
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Width |
17.5 in. (44.5 cm) 18.9 in. (48.0 cm) mounting rail flange, outside to outside |
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Depth |
36.6 in. (93.0 cm) without cosmetics40.5 in. (102.9 cm) with full cosmetics |
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Chassis Weight |
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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) |
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Chassis with all cards and power modules, no cosmetics |
600 lb. (272.2 kg) |
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Chassis, fully loaded with line cards and full cosmetics (front cover, front grille, and so on) |
650 lb. (294.8 kg) |
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Equipment Rack Specifications |
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Rack Dimensions |
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Height |
Available aperture in rack for two chassis in a single rack: |
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Width |
Vertical posts: |
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Depth |
Exterior of four-post rack:
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Equipment Rack Specifications (continued) |
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Load (weight) rating |
The rack must support the following weights and specifications:
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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) |
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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
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Rack Anchoring |
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General considerations |
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Floor mounting holes |
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Chassis Clearances |
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Two chassis in a single rack |
0.5-in. (1.27 cm) between chassis for horizontal shelf brackets |
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Front and rear of chassis |
40.4-in. (102.6 cm) for chassis installation36-in. (91.4 cm) for service access and airflow |
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Inlet and exhaust openings on chassis and power modules |
6-in. (15.2 cm) |
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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. |
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Mounting Rails and Hardware |
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Rail openings (aperture) |
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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.
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Mounting holes |
EIA standard mounting-hole spacing:
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Mounting screws |
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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). |
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Additional Rack Considerations |
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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. |
Environmental Specifications
This table lists the environmental specifications for the Cisco CRS 8-slot LCC.
Description |
Value |
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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 5906 ft (0.305 m to 1800 m) at 122°F (50°C), short-termUp to 13,123 ft (4000 m) at 104°F (40°C) or below |
Heat dissipation |
28,720 BTU per hour (fixed configuration DC)1 32,570 BTU per hour (modular configuration DC)2 |
External cooling requirements |
2.3 tons |
Chassis airflow |
Up to 900 cubic feet (25,485 liters) per minute |
Power system airflow |
Up to 240 cubic feet (6800 liters) per minute |
Sound power level (fixed configuration power) |
81 dB—80°F (27°C) or lower (fan speed 4000 RPM, nominal)92 dB—104°F (40°C) or higher (fan speed 6500 RPM) |
Sound power level (modular configuration power) |
77 dB—80°F (27°C) or lower (fan speed 3700 RPM)89 dB—104°F (40°C) or higher (fan speed 6500 RPM) |
Shock and vibration |
Designed and tested to meet the NEBS shock and vibration standards defined in GR-63-CORE (Issue 2, April 2002). |