Filter
Top Products
Chapter 3 Summary of Power and Cooling System Features
Power Supply Module
3-6
Cisco ICS 7750 System Description
78-10360-02
Key Features
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.
Technical Specifications
Table 3-2 lists the technical specifications for the power supply module.
Table 3-2 Technical Specifications for Power Supply Module
Type Description
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