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Cisco CRS-1 Carrier Routing System 8-Slot Line Card Chassis Installation Guide
OL-6256-08
Appendix A CRS-1 8-Slot Line Card Chassis Specifications
The following table lists the environmental specifications for the Cisco CRS-1 8-slot line card chassis.
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
Table A-1 Cisco CRS-1 8-Slot Line Card Chassis Component and Power Specifications
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)