General Power Supply Specifications; Power Supply Requirements And Heat Dissipation Specifications - Cisco MDS 9100 Series Installation Manual

Appendix B Technical Specifications

General Power Supply Specifications

Table B-3
Table B-3
AC-Input Power Supply
AC-input voltage
AC-input current rating
(maximum)
AC-input frequency
Power supply output capacity
Power supply output voltage
Output holdup time

Power Supply Requirements and Heat Dissipation Specifications

Table B-4
Table B-4 Power and Heat Dissipation
Model Number/
Cisco MDS 9134 Switch
(with fan modules)
Cisco MDS 9124 Switch
(with fan modules)
Cisco MDS 9140 Switch
(with fan modules)
Cisco MDS 9120 Switch
(with fan modules)
To prevent a loss of input power, ensure the total maximum load on each circuit supplying the power
Tip
supply is within the current ratings of the wiring and breakers.
OL-16187-01
lists the specifications for the Cisco MDS 9100 Series AC input power supply.
Cisco MDS 9100 Series AC Input Power Supply Specifications
provides a sample calculation of power and heat dissipation for the Cisco MDS 9100 Series.
AC-Input Heat Diss.
Power (watts) (BTU/hr)
96 maximum 330
96 maximum 330
204 maximum 870
180 maximum 752
Specification
Minimum = 85 VAC
Nominal = 100 to 240 VAC
Maximum = 264 VAC
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.
Minimum = 47 Hz
Nominal = 50 to 60 Hz
Maximum = 63 Hz
300 W
12 V +/- 6% up to 25 A
20 ms when input > 100 VAC
Input Current
85 VAC 110 VAC
(amps) (amps)
1.41 1.10
1.41 1.10
3.0 2.32
2.65 2.05
Cisco MDS 9100 Series Hardware Installation Guide
Power Specifications
220 VAC
(amps)
.55
.55
1.16
1.02
B-3