Cisco Systems ICS 7750 Manual De Usuario

The power supply module has the following key features:

Automatic remote enable/disable signal: Ensures that the power supply 
remains off until fully seated and turns the power supply off during removal.

Operates as a single or redundant module.

Hot-swappable, accessible from the front of the chassis.

Current sharing when two power supplies reside in a chassis (the power 
supplies do not load share).

Four DC voltage outputs: +3.3V, +5V, +12V, and –12V.

AC input range of operation: 100 to 240 VAC.

IEC 320-C14 AC input receptacle.

Overvoltage protection: Power supply shuts down if the power output exceeds 
the nominal output by 120 percent.

Automatic thermal shutdown: If the ambient temperature is too high, the 
power supply shuts down automatically; when the ambient temperature 
returns to a safe operating range, the power supply restarts automatically.

Automatic redundancy when two power supplies are installed.

 lists the technical specifications for the power supply module.

Dimensions and weight

10 lb (4.5 kg)

Temperature

Operating: 23 to 113ºF (–5 to 45ºC)
Nonoperating: –40 to 185ºF (–40 to 85ºC)

Relative humidity

Operating: 10 to 90% (noncondensing)
Nonoperating: 10 to 95% (noncondensing)

Thermal shock

Operating: –5 to 45ºC, 0.5ºC/minute
Nonoperating: –40 to 85ºC, changeover time between 2 and 3 minutes