Table Of Contents

Technical and Environmental Specifications

Line Card Chassis Specifications

Equipment Rack Specifications

Environmental Specifications

Technical and Environmental Specifications

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This chapter summarizes the technical and environmental specifications for the Cisco CRS Carrier Routing System 8-Slot LCC. It includes the following sections:

•Line Card Chassis Specifications

•Equipment Rack Specifications

•Environmental Specifications

Line Card Chassis Specifications

Table 3-1 lists the system specifications for the Cisco CRS 8-slot LCC with a fixed configuration power system installed.

Table 3-1 8-Slot Line Card Chassis Component and Power Specifications—Fixed Configuration Power 

Description	Value
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
Power Distribution Units	2 AC (Wye or Delta) or 2 DC power distribution units (PDUs) (cannot mix AC and DC PDUs in the chassis)
DC PDU	Supports 1 DC power entry module (PEM)
AC PDU	Supports 1 AC rectifier module
Maximum Power Consumption (total input power)	Note Proper grounding is also required at the site to ensure that equipment is not damaged by lightning or power surges.
Maximum DC	8.0 kW (assuming 94% efficiency)
Maximum AC	8.5 kW (Delta or Wye 3-phase) (assuming 88% efficiency)
Power Redundancy (2N)
DC	Three "A" battery plant feeds required for one PDU, and three "B" battery plant feeds required for the other PDU.
AC (Delta or Wye 3-phase)	Two independent Delta or Wye 3-phase power sources required, one for each PDU.
DC Input
Nominal input voltage	-48 VDC North America -54 VDC Telco (RBOC) -60 VDC International (range -40.5 to -75 VDC)
Input current	56 A at -48/-60 VDC (nominal voltage) 66 A at -40.5 VDC (low voltage extreme)
AC Input, Delta 3-phase	3W + PE (3 wire + protective earthing conductor ground wire)
Input voltage	3-phase 200 to 240 VAC, phase-to-phase (nominal) (range 170 to 264 VAC, phase-to-phase)
Line frequency	50 to 60 Hz (range 47 to 63 Hz)
Input current (PDU rated for 24 A)	30 A
AC Input, Wye 3-phase	3W + N + PE (3 wire + neutral + protective earthing conductor ground wire)
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)
Line frequency	50 to 60 Hz (nominal) (range 47 to 63 Hz)
Input current (PDU rated for 14 A)	16 A International 20 A North America

Table 3-2 lists the system specifications for the Cisco CRS 8-slot LCC with a modular configuration power system installed.

Table 3-2 8-Slot Line Card Chassis Component and Power Specifications—Modular Configuration Power 

Description	Value
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
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 (total input power)	Note Proper grounding is also required at the site to ensure that equipment is not damaged by lightning or power surges.
Maximum DC	9.5 kW (assuming 88% efficiency)
Maximum AC	9.8 kW (assuming 92% efficiency)
Power Redundancy (2N)
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.
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.
DC Input
Nominal input voltage	-48 VDC North America -60 VDC International (range -40 to -72 VDC)
Input current	50 A max at -48 VDC 40 A max at -60 VDC 60 A at -40 VDC (low voltage extreme)
AC Input, single-phase
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)
Input current	16 A International 20 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 Table 3-3.

Table 3-3 8-Slot Line Card Chassis and Equipment Rack Specifications 

8-Slot Line Card Chassis Specifications
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 cosmetics 40.5 in. (102.9 cm) with full cosmetics
Chassis Weight
Chassis shipping weight	418.3 lb. (189.7 kg) chassis with shipping crate and pallet 330.8 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 (front cover, front grille, and so on)	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 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.
Rack Anchoring
General considerations	•The rack must be bolted to the floor. For more information, see the Cisco CRS Carrier Routing System Line Card Chassis 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 installation 36-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 Cisco CRS Carrier Routing System Line Card Chassis Unpacking, Moving, and Securing Guide. Note In addition to supporting the chassis, the mounting rails are also designed to space adjustable rack rails at 22.8-inches (front to back) for chassis installation.
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) Note If you plan to use mounting screws other than the ones shipped with the chassis, you can use 10-32, 10-24, 12-24, or M5 screws. (M6 and 1/4-20 screws do not fit.)
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.

Environmental Specifications

Table 3-4 lists the environmental specifications for the Cisco CRS 8-slot LCC.

Table 3-4 8-Slot Line Card Chassis Environmental Specifications 

Description	Value
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% noncondensing Nonoperating: 5 to 90% noncondensing, short-term operation
Altitude	1 to 5906 ft (0.305 m to 1800 m) at 122°F (50°C), short-term Up 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).

1 Heat dissipation from the DC power system based on maximum output power capacity at 94% efficiency. 2 Heat dissipation from the DC power system based on maximum output power capacity at 88% efficiency. 2 Depending on the hardware deployed at your site, your system may not consume or be capable of consuming the maximum power supplied by the power system.