Cisco MDS 9000 Series Hardware Installation Manual page 50

Switch Specifications
Description
Power Supply
Airflow
Cisco MDS 9124V-K9 Switch Hardware Installation Guide
44
Specification
500-W
• 500-W AC, port-side exhaust variant (up to 2
per switch)
• 500-W AC, port-side intake variant (up to 2 per
switch)
• AC input—100 to 240 V AC (10% range)
• Frequency—50 to 60 Hz (nominal)
• 80 PLUS Platinum certified
1200-W
• 1200W AC/ HVAC/ HVDC Bidirectional airflow
(2 per switch)
Part Number: DS-CAC-1200W
AC input: 90V to 305V
DC input: 192V to 400V
Frequency – 50 to 60 Hz (nominal)
• Back to front (toward ports) using port-side
exhaust fans
• Front to back (into ports) using port-side intake
fans
3
• 50 CFM (0.02 m /s) through system fan
assembly at 25°C
3
• 100 CFM (0.04 m /s) maximum
We recommend that you maintain a minimum air
space of 2.5 in. (6.4 cm) between walls and chassis
air vents and a minimum horizontal separation of 6
in. (15.2 cm) between two chassis to prevent
overheating.
To prevent the switch from overheating and shutting
down, you must position the air intake for the switch
in a cold aisle.
Technical Specifications