Cisco CRS 4-Slot Line Card Chassis System Specifications

This appendix provides the specifications for the Cisco CRS Carrier Routing System 4-Slot Line Card Chassis. It contains the following sections:

Cisco CRS 4-Slot Line Card Chassis Specifications

Table 1 Cisco CRS 4-Slot Line Card Chassis Specifications

Physical Dimensions

Height

30 in. (76.2 cm)

Depth

30.28 in. (76.9 cm)(including front doors)

Width

17.65 in. (44.8 cm)

Weight

Chassis with fan tray, power shelf, and impedance carriers installed (as shipped)

260 lb (117.9 kg), chassis only338 lb (153.3 kg), chassis including packaging and pallet

Chassis with all components installed (without exterior cosmetic components and packaging)

361 lb (163.7 kg)

Cards and Modules Supported

4 modular services cards (MSCs) and forwarding processor (FP) cards (line cards).

4 physical layer interface modules (PLIMs)

or

4 shared port adapter (SPA) interface processors (SIPs), each of which supports one or more SPAs

2 route processor (RP) cards or 2 performance route processor (PRP) cards

4 switch fabric cards

1 fan tray

Power Shelves

AC power shelf

Supports four AC-to-DC rectifiers

DC power shelf

Supports four DC power supplies

Maximum Power Consumption

Total input power

Maximum AC input power

4185 W (assuming 92% efficiency)

Maximum DC input power

4278 W (assuming 90% efficiency)

Power Redundancy

AC

1:1—Requires two independent AC sources

DC

We recommend two independent –48 VDC power sources

AC Input Power

2W+PE (2 wire + protective earthing1)

Nominal input voltage

200 to 240 VAC(range: 180 to 264 VAC)

Nominal line frequency

50 or 60 Hz(range: 47 to 63 Hz)

Recommended AC service

20 A (per AC rectifier)

DC Input Power

Nominal input voltage

Supports –48 VDC and –60 VDC systems (range: –40 to –72 VDC)

Input line current

50-A maximum at –48 VDC40-A maximum at –60 VDC

Inrush current

60-A peak at 75 VDC(maximum for 1 ms)

Chassis Cooling

1 fan tray, pull configuration

Chassis airflow

Up to 880 cubic ft (24,919 liters) per minute

Power shelf airflow

60 cubic ft (1699 liters) per minute

1 Protective earthing conductor (ground wire).

Environmental Specifications

Table 2 Cisco CRS 4-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)2

Nonoperating: –40° to 158°F (–40° to 70°C)

Humidity

Operating: 5% to 85% noncondensing

Nonoperating: 5% to 90% noncondensing, short-term operation

Altitude

–197 to 5906 ft (–60 to 1800 m) at 122°F (50°C), short-term

Up to 10,000 ft (3048 m) at 104°F (40°C) or below

Heat dissipation
  • AC: 14,280 BTU per hour (maximum)
  • DC: 14,597 BTU per hour (maximum)

Power density

12,406 W per sq meter (maximum)

Average 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)

Acoustic noise

Fans at normal to moderate speed:

67 dBa—front of chassis77 dBa—rear of chassis

Fans at maximum speed (7500 RPM):

83 dBa—front of chassis93 dBa—rear of chassis

Shock and vibration

Designed and tested to meet the NEBS shock and vibration standards defined in GR-63-CORE (Issue 2, April 2002).

2 “Short-term” refers to a period of not more than 96 consecutive hours and a total of not more than 15 days in one year. This refers to a total of 360 hours in any given year, but no more than 15 occurrences during that one-year period.

Compliance and Safety Reference

For information about the compliance and safety standards with which the Cisco CRS carrier routing system conforms, see Cisco CRS Carrier Routing System Regulatory Compliance and Safety Information .


Note
Statement 273, Blower Handle Warning, is applicable only to the Cisco CRS 4-slot line card chassis.