Power Supply Requirement Specifications; Component Power Requirements And Heat Dissipation - Cisco MDS 9148V-K9 Hardware Installation Manual

Technical Specifications

Power Supply Requirement Specifications

The following table provides a sample calculation of power for the switch AC power supply:
Table 5: Power Dissipation for AC Power Supply
Power
Mode
Typical
Max
Table 6: Power Supply Fuse Information
PID
DS-CAC-500W-I
DS-CAC-500W-E

Component Power Requirements and Heat Dissipation

Consider heat dissipation when sizing the air-conditioning requirements for an installation. The power and
heat associated with switch varies based on the following considerations:
• The environment (temperature) outside the chassis
• Internal chassis temperature
• Any hardware component failure in the chassis
• Average switching traffic levels
PSU Traffic T emperature
Rate
2 50% 25°C
2 100% 25°C
40°C
Fuse Type
Time-lag
Power Supply Requirement Specifications
Voltage Optics Optics
Speed Number
Nominal 32G-SW 24
48
64G-SW 24
48
32G-SW 24
32G-SW 48
64G-SW 24
64G-SW 48
32G-SW 48
64G-SW 48
Fuse Rating (Amp) I2t (Amps
15 534
660
Cisco MDS 9148V-K9 Switch Hardware Installation Guide
Fan Power at Power at
Trays
110 V/60 220 V/50
Hz Hz
(Watts) (Watts)
4 211 205
4 247 240
4 235 228
4 295 286
4 213 207
4 248 241
4 236 229
4 301 292
4 286 278
4 323 314
2
seconds) Fuse Melting Time
4 min@15 A
2 min@30 A
30 min@22.5 A
0.15 s@50 A
47