Table Of Contents

Specifications

Line Card Chassis Specifications

Fabric Card Chassis Specifications

Fabric Card Chassis System Specifications

Fabric Card Chassis Environmental Specifications

Safety and Compliance Specifications

Specifications

---

This chapter provides pointers to the technical, environmental, and safety and compliance specifications for the Cisco CRS-1 Multishelf System.

Line Card Chassis Specifications

See the Cisco CRS-1 Carrier Routing System 16-Slot Line Card Chassis Site Planning Guide for line card chassis (LCC) specifications.

Fabric Card Chassis Specifications

Fabric card chassis system and environmental specifications are provided in the tables that follow.

Fabric Card Chassis System Specifications

The following table lists the system specifications for the fabric card chassis.

Table B-1 Fabric Card Chassis Specifications 

Chassis Dimensions
Height	84 in. (213.4 cm) with top power shelf installed
Width	23.6 in. (60.0 cm)
Depth	36.9 in. (93.9 cm) without cosmetic doors and cards 41.5 in. (105.4 cm) with front and rear doors
Overhead clearance	24 in. (61 cm) overhead clearance recommended. This overhead clearance includes 12 in. (30.5 cm) for the tray and 12 in. (30.5 cm) for access to the cables.
Chassis Weight
Chassis shipping weight	1075 lb (487.6 kg) fabric card chassis with shipping crate and pallet 780 lb (354 kg) chassis with fans and blanks (as shipped)
Chassis with power shelves only, no power modules	849 lb (385 kg)
Chassis with power shelves, power modules, and alarm modules	970 lb (440 kg)
Chassis, fully loaded with cards, without cosmetics	1585 lb (719 kg)
Chassis, fully loaded with cards and cosmetics (doors, panels, grilles, and so on)	1629 lb (739 kg)
Floor Loading
Chassis footprint	6.72 sq. ft (6243 sq. cm), with cosmetics and doors
Floor contact area	4.72 sq. ft (4385 sq. cm)
Maximum floor loading	Without cosmetics and doors: 1585 lb/4.72 sq. ft = 335 lb/sq. ft 719 kg/4385 sq. cm = 0.164 kg/sq. cm With cosmetics and doors: 1695 lb/4.72 sq. ft = 359 lb/sq. ft 769 kg/4385 sq. cm = 0.175 kg/sq. cm
Supported Cards and Modules	8 S2 switch fabric cards (up to 24 cards in the future) 2 shelf controller cards (2-port or 22-port version) 2 fan trays (with 9 fans each) 1 air filter
Power Shelves	2 AC or 2 DC power shelves for each chassis (cannot mix AC and DC shelves in a chassis)
DC power shelf	Requires 2 DC power entry modules (PEMs) for each shelf
AC power shelf	Requires 3 AC rectifier modules for each shelf
Maximum Power Consumption (total input power)
Maximum DC	9.0 kW
Maximum AC	11.1 kW (Delta or Wye 3-phase)
	Note Proper grounding is also required at the site to ensure that equipment is not damaged by lightning or power surges.
Power Redundancy (2N)
DC	4 inputs of -48 or -60 VDC for each power shelf ("A" battery plant to one shelf, "B" battery plant to the other)
AC (Delta or Wye 3-phase)	2 independent Delta or Wye 3-phase power sources required, one for each power shelf.
DC Input
Nominal input voltage	-48 VDC North America -54 VDC Telco (RBOC) -60 VDC European Community (range -42 to -75 VDC)
Input current	46 A max at -48 VDC 37 A max at -60 VDC 55 A maximum at -42 VDC (low voltage extreme)
AC Input, Delta 3-phase	3W + PE (3 wire + protective earthing1 )
Input voltage	3-phase 200 to 240 VAC, phase-to-phase (nominal) (range 180 to 264 VAC, phase-to-phase)
Line frequency	50 or 60 Hz (nominal) (range 47 to 63 Hz)
Recommended AC service	60 A
AC Input, Wye 3-phase	3W + N + PE (3 wire + neutral + protective earthing1)
Input voltage	3-phase 200-240/346-415 VAC (range 180 to 264 VAC, phase-to-neutral) (range 311 to 456 VAC, phase-to-phase)
Line frequency	50 or 60 Hz (nominal) (range 47 to 63 Hz)
Recommended AC service	32 A

1 Protective earthing conductor (ground wire).

Fabric Card Chassis Environmental Specifications

The following table lists the environmental specifications for the fabric card chassis.

Table B-2 Fabric 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 (-60 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	DC system: 30,737 BTU per hour (maximum) AC system: 37,908 BTU per hour (maximum)
Heat output	10,150 W per sq. meter (maximum)
External cooling requirements	3.4 tons
Chassis airflow	Up to 2050 cubic feet (58,050 liters) per minute
Power shelf airflow	100 to 140 cubic feet (2832 to 3964 liters) per minute
Air exhaust temperature	129°F (54°C)—At room temperatures of 95 to 102°F (35 to 39°C) 149°F (65°C)—Maximum exhaust temperature, on a fully loaded system during worst-case operating conditions (50°C and 6000 ft altitude) Note Air temperature rise is 15°C on a fully loaded system with fans running at maximum speed (5150 RPM). At room temperatures below 95°F (35°C), exhausted air is 19°C higher than room temperature. At temperatures above 102°F (39°C), exhausted air is 15°C higher than room temperature.
Air velocity (at exhaust)	1400 ft per minute at normal, room temperature, low fan speed (4000 RPM) 1800 ft per minute at high temperature or altitude, high fan speed (5150 RPM) Note Software controls the speed of the fans based on measurements from the chassis thermal sensors.
Acoustic noise	72 dBa maximum at 77°F (25°C) ambient temperature
Shock and vibration	Designed and tested to meet the NEBS shock and vibration standards defined in GR-63-CORE (Issue 2, April 2002).

Safety and Compliance Specifications

For information about the compliance and safety standards with which the Cisco CRS-1 Multishelf System conforms, see Regulatory Compliance and Safety Information for the Cisco CRS-1 Carrier Routing System.