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10 Installing Cisco AC and DC Power Supplies in Cisco 2500 Series Routers
Connecting the DC Power Supply
Warning This product relies on the building’s installation for short-circuit (overcurrent) protection.
Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A international)
is used on the phase conductors (all current-carrying conductors). (To see translated versions of this
warning, refer to the Regulatory Compliance and Safety Information document that accompanied the
router.)
Warning This equipment is intended to be grounded. Ensure that the host is connected to earth
ground during normal use. (To see translated versions of this warning, refer to the Regulatory
Compliance and Safety Information document that accompanied the router.)
Installing Power Requirements and System Identifier Labels
Follow the directions in this section to place the Power Requirements and System Identifier labels
on the rear panel of the Cisco 2500 series routers.
Note The steps in this section are only performed when the router is being converted from an AC
power supply to a DC power supply.
Step 1 Remove the Power Requirements label from the sheet of labels included with the power
supply. (See Figure 10.)
Figure 10 Power Requirements and System Identifier Label Sheet
Note If the power supply in the Cisco 2500 series router is being converted from DC to AC, simply
remove the Power Requirements and System Identifier labels from the rear panel of the router
chassis.
Step 2 Place the label directly over the silk screened power requirements on the rear panel of the
Cisco 2500 series router. (See Figure 11)
Cisco 2501-DC Cisco 2503-DC Cisco 2504-DC Cisco 2505-DC Cisco 2507-DC
Cisco 2509-DC Cisco 2511-DC Cisco 2514-DC Cisco 2515-DC
Cisco
2520-DC
Input: 40-72 V
Current: 1.5 4.0 A
Volts: 40 V
Cisco
2521-DC
Cisco
2522-DC
Cisco
2523-DC
Cisco
2524-DC
H9739