Specifications

32 Input/Output Controller Replacement Instructions
Removing and Replacing the Input/Output Controller
Note For the Cisco 7200 series, each DC-input power supply operating at –48 VDC in
North America requires a minimum of 13A service. Each DC-input power supply
operating at –60 VDC in the European Community requires a minimum of 8A service.
For the Cisco uBR7200 series routers, each DC-input power supply rating is 14A,
700 volt ampere (VA).
This product relies on the building’s installation for short-circuit (overcurrent) protection.
Ensure that a listed and certified fuse or circuit breaker, 35A minimum 60 VDC, is used
on all current carrying conductors.
Step 9 Repeat Step 1 through Step 8 if a second power supply is installed.
This completes the steps for reconnecting DC-input power to a Cisco 7200 series router or
Cisco uBR7200 series router.
Powering Up the Router
To power up a Cisco 7200 series or Cisco uBR7200 series router that has an installed AC-input or
DC-input power supply, complete the following steps:
Step 1 Check for the following:
• Each port adapter is inserted in its slot, and its respective port adapter lever is in the
locked position.
• The network processing engine and the I/O controller are inserted in their respective
slots, and their captive installation screws are tightened.
• All network interface cables are connected to the port adapters.
• Each cable modem card is inserted in its slot, and its respective captive installation
screws are tightened (Cisco uBR7200 series only).
• A Flash memory card is installed in its PCMCIA slot (if present).
• Each AC-input power cable is connected and secured with the cable-retention clip
(AC-input power supplies only).
• For a Cisco 7200 series router, each DC lead is connected and secured to the power
supply faceplate with a cable tie; for a Cisco uBR7200 series router, each DC lead is
connected with M5 nuts for the grounding receptacle and the strain-relief cover over
the +48V and –48V leads (DC-input power supplies only).
• Each DC lead is connected and secured to the power source (DC-input power supplies
only).
• Ensure the tape (that you applied earlier) is removed from the circuit breaker switch
handle, and power is restored by moving the circuit breaker handle to the ON position
(DC-input power supplies only).
• The console terminal is turned on.
Caution When the power switch on a Cisco uBR7200 series power supply is turned to the OFF (O)
position, the power supply will enter a reset cycle for ninety (90) seconds. Wait at least ninety (90)
seconds before turning the power switch back to the ON (|) position. If you do not wait the full ninety
(90) seconds, the power supply will not restart.