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

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Cisco MDS 9100 Series Hardware Installation Guide
OL-17951-02
Appendix B Technical Specifications
Power Specifications
Tip To prevent a loss of input power, ensure that the total maximum load on each circuit supplying the
power supply is within the current ratings of the wiring and breakers.
Table B-6 provides a sample calculation of power and heat dissipation for the Cisco MDS 9100 Series
AC input power supply.
Table B-5 Power and Heat Dissipation for AC Input Power Supply
Model Number/
AC Input
Power (watts)
Heat Diss.
(BTU/hr)
Input Current
85 VAC
(amps)
110 VAC
(amps)
220 VAC
(amps)
Cisco MDS 9134
Switch (with fan
modules)
96 maximum 330 1.41 1.10 .55
Cisco MDS 9124
Switch (with fan
modules)
96 maximum 330 1.41 1.10 .55
Cisco MDS 9140
Switch (with fan
modules)
204 maximum 870 3.0 2.32 1.16
Cisco MDS 9120
Switch (with fan
modules)
180 maximum 752 2.65 2.05 1.02
Table B-6 Power and Heat Dissipation for DC Input Power Supply
Model Number/
DC Input
Power (watts)
Heat Diss.
(BTU/hr)
Input Current
48 VDC
(amps)
60 VDC
(amps)
Cisco MDS 9134
Switch (with fan
modules)
Not supported - - -
Cisco MDS 9124
Switch (with fan
modules)
Not supported - - -
Cisco MDS 9140
Switch (with fan
modules)
204 maximum 928 5.67 4.53
Cisco MDS 9120
Switch (with fan
modules)
180 maximum 819 5.00 4.00