Cisco MDS 9100 Series Hardware Installation Guide (OL-17951-02, February 2009)

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B-3
Cisco MDS 9100 Series Hardware Installation Guide
OL-17951-02
Appendix B Technical Specifications
Power Specifications
General Power Supply Specifications
Table B-3 lists the specifications for the Cisco MDS 9100 Series AC input power supply.
Table B-4 lists the specifications for the Cisco MDS 9100 Series DC input power supply.
Power Supply Requirements and Heat Dissipation Specifications
Table B-5 provides a sample calculation of power and heat dissipation for the Cisco MDS 9100 Series
AC input power supply.
Table B-3 Cisco MDS 9100 Series AC Input Power Supply Specifications
AC Input Power Supply Specification
AC input voltage Minimum = 85 VAC
Nominal = 100 to 240 VAC
Maximum = 264 VAC
AC input current rating
(maximum)
4.7 A at 85 VAC
3.6 A at 110 VAC
1.8 A at 220 VAC
Note For plug current rating, see the
“Jumper Power Cord” section on
page C-5.
AC input frequency Minimum = 47 Hz
Nominal = 50 to 60 Hz
Maximum = 63 Hz
Power supply output capacity 300 W
Power supply output voltage 12 V +/- 6% up to 25 A
Output holdup time 20ms when input > 100 VAC
Table B-4 Cisco MDS 9100 Series DC Input Power Supply Specifications
DC Input Power Supply Specification
DC input voltage -48 VDC to -60 VDC continuous
DC input current rating
(maximum)
8 A at -48 VDC
6.67 A at -60 VDC
Note For plug current rating, see the
“Jumper Power Cord” section on
page C-5.
Power supply output capacity 300 W
Power supply output voltage 12 V +/- 6% up to 25 A
Output holdup time 8 ms when input > 100 VAC