Table 4. Physical Specifications for the IBM SAN48C-6SAN48C-6 Switch (continued)
Description
Specification
Airflow
• Back to front (toward ports) using port-side exhaust
fans
• Front to back (into ports) using port-side intake fans
• 50 CFM (0.02 m
3
/s) through system fan assembly at
25°C
• 100 CFM (0.04 m
3
/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.
General Power Supply Specifications
The following table lists the specifications for the IBM SAN48C-6 switch AC power supply:
Table 5. Power Supply Specifications
AC Input Power
Specification
AC input voltage
100 to 240 VAC
AC input frequency
Nominal = 50 to 60 Hz
Power supply output capacity
650 W
Output holdup time
20 ms
Power Supply Requirement Specifications
The following table provides a sample calculation of power for the IBM SAN48C-6 switch AC power
supply:
Table 6. Power Dissipation for AC Power Supply
Power
Mode
PSU
Traffic
Rate
Temperature Voltage Optics
Speed
Optics
Numbe
r
Fan
Trays
Power at
110V/
60HZ
(Watts)
Power at
220V/50HZ
(Watts)
Typical 2
50%
25°C
Nominal 32G-SW 24
4
257
251
48
305
297
Max
2
100%
25°C
Nomin
32G-SW 24
4
267
260
32G-LW 48
323
315
40°C
32G-SW
322
315
55°C
32G-LW
374
348
Nominal
+ 5%
403
385
38 IBM Storage Networking: IBM Storage Networking SAN48C-6 32 Gbps 48-Port Fibre Channel Switch
Installation, Service, and User Guide
