Power Specifications; General Power Supply Specifications - Cisco MDS 9148T Hardware Installation Manual

Power Specifications

Description
Power Supply
Airflow
Power Specifications

General Power Supply Specifications

The following table lists the specifications for the Cisco MDS 9148T switch AC power supply:
Table 4: Power Supply Specifications
AC Input Power
AC input voltage
AC input frequency
Power supply output capacity
Output holdup time
Cisco MDS 9148T 32-Gbps 48-Port Fibre Channel Switch Hardware Installation Guide
52
Specification
• 650-W AC, port-side exhaust variant (up to 2
per switch)
• 650-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)
• 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.
Specification
100 to 240 VAC
Nominal = 50 to 60 Hz
650 W
20 ms
Technical Specifications