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CRS-1 8-Slot Line Card Chassis Specifications

CRS-1 8-Slot Line Card Chassis Specifications

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The following table lists the specifications for the Cisco CRS-1 Carrier Routing System 8-Slot Line Card Chassis.

Table A-1 Cisco CRS-1 8-Slot Line Card Chassis Component and Power Specifications 

Supported Cards and Modules	8 modular services cards (MSCs 8 physical layer interface modules (PLIMs), one for each MSC 4 switch fabric cards (SFCs) 2 route processors (RPs) 2 fan trays 1 air filter
Power Distribution Units	2 AC 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	This represents total input power.
Maximum DC	8.0 kW
Maximum AC	8.75 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.
DC Power Lug Torque Ranges
Minimum torque	20 in-lb (2.2 N-m)
Maximum torque	30 in-lb (3.3 N-m)
Power Redundancy
DC	2N (three "A" battery plant feeds for one PDU, and three "B" battery plant feeds for the other PDU)
AC (Delta or Wye 3-phase)	2N (two independent Delta or Wye 3-phase power sources required)
DC Input
Nominal input voltage	-48 VDC North America -54 VDC Telco (RBOC) -60 VDC International (range -40.5 to -75 VDC)
Input current (PDU rated for 60 A)	56 A (nominal) 66 A at -40.5 VDC (maximum)
AC Input, Delta 3-phase	3W + PE
Input voltage	3-phase 200 to 240 VAC (nominal) (range 170 to 264 VAC, phase-to-phase)
Line frequency	50 to 60 Hz (range 47 to 63 Hz)
Recommended AC service (PDU rated for 24 A)	30 A
AC Input, Wye 3-phase	3W + N + PE
Input voltage	3-phase 200 to 240 VAC (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)
Recommended AC service (PDU rated for 14 A)	16 A International 20 A North America

The following table lists the environmental specifications for the Cisco CRS-1 8-slot line card chassis.

Table A-2 Cisco CRS-1 8-Slot Routing System 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 5,906 ft (-60 to 1,800 m) at 122°F (50°C), short-term Up to 13,123 ft (4,000 m) at 104°F (40°C) or below
Heat dissipation	27,350 BTUs/hr
External cooling requirements	2.3 tons
Acoustic noise	74 dB at 3.28 ft. (1 meter) in front of chassis (nominal reading at room temperature)
Shock	Operating: 5 to 500 Hz, 0.5g1 (0.1 oct/min)2 Nonoperating: 5 to 100 Hz, 1 g (0.1 oct/min) 100 to 500 Hz, 15 g (0.2 oct/min) 500 to 1000 Hz, 1.5 g (0.2 oct/min)
Vibration	Operating: 0.35 Grms3 from 3 to 500 Hz Nonoperating: 1.0 Grms from 3 to 500 Hz

1 g = Gravity 2 oct/min = Octave per minute 3 Grms = The root mean square value of acceleration, where 1G equals 32.17 ft/sec (9.81 m/sec).