Cisco 4000 Series Manuel de remplacement - Page 4
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Safety Recommendations
Table 1
Description
Input voltage
Frequency
Current Rating
1. The AC power supply autoselects either 110 or 220 VAC operation.
Table 2
Description
Input voltage
Current Rating
Wire gauge for DC-input
power connections
1. AWG = American Wire Gauge
Safety Recommendations
Follow these guidelines to ensure general safety:
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Safety with Electricity
Warning
rings, necklaces, and watches). Metal objects will heat up when connected to power and ground.
This can cause serious burns or even result in welding to the terminals.
Follow these guidelines when working on equipment powered by electricity:
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4 Replacing the Cisco 4000 Series Power Supply
Cisco 4000 Series AC Power Supply Specifications
Specification
100 to 240 VAC
50 to 60 Hz
3.0 A maximum at 100 VAC, 1.5 A maximum at 240 VAC
Cisco 4000 Series DC Power Supply Specifications
Specification
40 to 72 VDC
5.0 A maximum at 40 VDC, 2.8 A maximum at 72 VDC
14 AWG
Keep the chassis area clear and dust-free during and after installation.
Place the removed chassis cover in a safe place.
Keep tools away from walk areas where you or others could fall over them.
Do not wear loose clothing that may get caught in the chassis. Fasten your tie or scarf and roll up
your sleeves.
Wear safety glasses when working under conditions that may be hazardous to your eyes.
Do not perform any action that creates a potential hazard to people or makes the equipment
unsafe.
Before working on equipment that is connected to power lines, remove jewelry (including
Locate the room's emergency power-off switch. Then, if an electrical accident occurs, you can
quickly shut the power OFF.
Before working on the system, turn OFF the power and unplug the power cord.
Disconnect all power before doing the following:
— Working on or near power supplies
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