Table Of Contents
Line Card Chassis Specifications
Compliance and Safety Specifications
System Specifications
This appendix provides the specifications for the Cisco CRS-1 Carrier Routing System 16-Slot Line Card Chassis. It contains the following sections:
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Line Card Chassis Specifications
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Line Card Chassis Specifications
Table C-1 lists the specifications for the Cisco CRS-1 Carrier Routing System 16-Slot Line Card Chassis.
Table C-1 Cisco CRS-1 16-Slot Line Card Chassis Specifications
Height
80 in. (203 cm)
Depth
36 to 39.7 in. (91.4 to 100.9 cm)
(maximum depth includes front and rear doors)Width
23.6 in. (60 cm)
Floor space requirement
6 sq ft (0.56 sq. m)
Overhead clearance
24 in. (61 cm) overhead clearance recommended.
Includes 12 in. (30.5 cm) for the tray and 12 in. (30.5 cm) for access to the cables.Chassis with only fan trays and impedance carriers installed
(as shipped)Chassis only: 1052 lb (477 kg)
Chassis in shipping crate: 1142 lb (518 kg)Chassis with full cosmetics
1753 lb (795 kg)
Chassis footprint
floor contact area4.72 sq ft (4385 sq cm)
680 sq in. (4385 sq cm)Maximum floor loading
379 lb per sq. ft
1847 kg per sq. m16 modular services cards (MSCs)
16 physical layer interface modules (PLIMs)
16 SPA interface processors (SIPs), each of which supports one or more shared port adapters (SPAs)
2 route processors (RPs)
1 distributed route processor (DRP) and 1 DRP PLIM
8 switch fabric cards:
2 fan controller cards
2 fan trays
2 alarm modules
2 AC or 2 DC power shelves
(cannot mix AC and DC shelves in a chassis)DC power shelf
Supports three DC power entry modules (PEMs)
and one alarm moduleAC power shelf
Supports three AC-to-DC rectifiers
and one alarm module
(total input power)Maximum DC
13.9 kW (assuming 95% efficiency)
Maximum AC (Delta and Wye)
14.6 kW (assuming 90% efficiency)
DC
2N: Requires 6 A battery plant feeds and 6 B battery plant feeds.
AC, 3-phase Delta
2N: Requires two independent 3-phase AC Delta sources.
AC, 3-phase Wye
2N: Requires two independent 3-phase AC Wye sources.
Nominal input voltage
-48 VDC North America
-60 VDC European Community
(range -40 to -75 VDC)Input current
50 A max at -48 VDC
40 A max at -60 VDC3W+PE (3 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
60 A
3W+N+PE (3 wire + neutral + protective earthing1)
Nominal input voltage
200-240/346-415 VAC
(range 180-264/311-456 VAC)Nominal line frequency
50 or 60 Hz
(range 47 to 63 Hz)Recommended AC service
40 A (North America)
32 A (International)2 fan trays, push-pull configuration
Chassis airflow
Up to 2050 cubic ft (58,050 liters) per minute
Power shelf airflow
100 to 140 cubic ft (2832 to 3964 liters) per minute
1 Protective earthing conductor (ground wire).
Environmental Specifications
Table C-2 lists the environmental specifications for the line card chassis.
Table C-2 Cisco CRS-1 16-Slot Line Card Chassis Environmental Specifications
Temperature
Operating, nominal: 41° to 104°F (5° to 40°C)
Operating, short-term: 23° to 122°F (-5° to 50°C)1
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 13,123 ft (4000 m) at 104°F (40°C) or below
External cooling requirement
3.4 tons
Heat dissipation
45,080 BTU per hour (maximum)
Heat output
10,150 W per sq meter (maximum)
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
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, maximum fan speed (5150 RPM)
Note
Acoustic noise
Fans at normal to moderate speed, temperature 75°F (24°C):
74.5 dBa—front of chassis
74 dBa—rear of chassisFans at maximum speed (5150 RPM), temperature 104°F (40°C):
78 dBa—front of chassis
81 dBa—rear of chassisFault condition—one failed fan tray and the fans in the other fan tray running at full speed (6700 RPM):
74.6 dBa—front of chassis
86.1 dBa—rear of chassisShock and vibration
Designed and tested to meet the NEBS shock and vibration standards defined in GR-63-CORE (Issue 2, April 2002).
1 Short-term refers to a period of not more than 96 consecutive hours and a total of not more than 15 days in 1 year. This refers to a total of 360 hours in any given year, but no more than 15 occurrences during that 1-year period.
Compliance and Safety Specifications
For information about the compliance and safety standards with which the Cisco CRS-1 router conforms, see Cisco CRS-1 Carrier Routing System Regulatory Compliance and Safety Information.
DC Wire Gauge and Resistance
This section lists the recommended wire sizes for the line card chassis. To prevent signal degradation, a conductor must be large enough to prevent its impedance from creating a voltage drop equal to 2 percent of the reference voltage. See Table C-3 for a list of wire gauges that prevent unacceptable voltage drops over different lengths of copper wire. Gauge values are in American Wire Gauge (AWG). See Table C-4 for the resistance of 1000 feet of copper wire at various wire gauges.
Note
Note
