Cisco MDS 9020 Service Manual
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Technical Specifications
This appendix includes the following technical specifications for the Cisco MDS 9020 Fabric Switch:
• Switch Specifications, page C-1
• Power Specifications, page C-2
• Supported Power Cords and Plugs, page C-3
Switch Specifications
Table C-1 lists the environmental specifications for the Cisco MDS 9020 Fabric Switch. Table C-2 lists
the switch specifications for the C isco MDS 9 020 Fabric Sw itch.
Table C-1 Environmental Specifications for the Cisco MDS 9020 Fabric Switch
APPENDIX
C
Description Specification
Temperature, ambient operating 41 to 104°F (5 to 40°C)
Temperature, ambient nonoperating and storage - 40 to 158°F (- 40 to 70°C)
Humidity (RH), ambient (noncondensing)
operating
Humidity (RH), ambient (noncondensing)
nonoperating and storage
Altitude, operating 0 to 10,000 ft (0 to 2000 m)
Table C-2 Cisco MDS 9020 Fabric Switch Specifications
Description Specification
Dimensions Width = 17 in. (43.2 cm)
Rack unit (RU) Chassis requires 1 RU (1.75 in. or 4.45 cm)
We ight 9 lb
Airflow Front-to-back
5 to 90%
5 to 93%
Height = 1.70 in. (4.32 cm)
Depth = 12.0 in. (30.5 cm)
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C-1
Appendix C Technical Specifications
Power Specifications
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Power Specifications
This section includes the following information:
• General Power Supply Specifications, pa ge C-2
• Power Supply Requirements and Heat Dissipation Specifications, page C-2
• Connection Guidelines for AC-Powered Systems, page C-3
General Power Supply Specifications
Table C-3 lists the specifications for the Cisco MDS 9020 Fabric Switch AC input power supply.
Table C-3 Cisco MDS 9020 Fabric AC Input Power Supply Specifications
AC-Input Power Supply Specification
AC-input voltage 100 to 240 VAC; 50 to 60 Hz
AC-input current rating (maximum) 1 A at 120 VAC
0.5 A at 240 VAC
AC-input frequency 50 to 60 Hz
Power supply output capacity 100 Wa tts
Power supply output voltage 3, 5, and 12 VDC
Power Supply Requirements and Heat Dissipation Specifications
Table C-4 provides a sample calculation of power and heat dissipation for the Cisco MDS 9020 Fabric
Switch.
Table C-4 Power and Heat Dissipation
Input Current
AC-Input Power
Model Number
Cisco MDS 9020 Fabric 100 341 1.2 0.90 0.45
Tip T o pre v ent a loss of input power, ensure the total maximum load on each circuit supplying the switch
is within the current ratings of the wiring and breakers.
(watts)
Heat Dissipation
(BTU/Hr.)
85 VAC
(amps)
110 VAC
(amps)
220 VAC
(amps)
C-2
Cisco MDS 9020 Fabric Switch Hardware Installation Guide
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