Power Supply Requirement Specifications
The following table provides a sample calculation of power for the Cisco MDS 9148T switch AC power
supply:
Table 5: Power Dissipation for AC Power Supply
Power at
220V/50HZ
(Watts)
Power at
110V/60HZ
(Watts)
Fan
Trays
Optics
Number
Optics
Speed
Voltage
Temperature
Traffic
Rate
PSU
Power
Mode
251
257
4
24
32G-SW
Nominal
25°C
50%
2
Typical
297
305
48
260
267
4
24
32G-SW
Nominal
25°C
100%
2
Max
315
323
48
32G-LW
315
322
32G-SW
40°C
348
374
32G-LW
55°C
385
403
Nominal
+ 5%
Cisco MDS 9148T 32-Gbps 48-Port Fibre Channel Switch Hardware Installation Guide
53
Technical Specifications
Power Supply Requirement Specifications