Chapter 3 Installing a Cisco 7500 Series Router
Installing the Cisco 7513, Cisco 7513-MX, and Cisco 7576
R E V I E W D R A F T — C I S CO CO N F I D E N T I A L
Note When you install the network interface cables, route the cables to and through the cable-management bracket. If you are using very thin cables that slip through the bracket openings, insert cable ties through the holes in the bracket and wrap them around the cables to secure them.
It might be necessary to bundle longer cables to avoid tangling them. Do this at the cable-management bracket or at the rack, but leave enough room to remove processor modules and power supplies and to change cables as required. Do not block the power supply or chassis intake air vents with cables. Verify that the cables do not interfere with removal and installation of the blower module.
This completes the procedure for installing the cable-management bracket. Proceed to the next section, “Installing Cisco 7513, Cisco 7513-MX, and Cisco 7576 Power Supplies.”
Installing Cisco 7513, Cisco 7513-MX, and Cisco 7576 Power Supplies
Your Cisco 7513, Cisco 7513-MX, or Cisco 7576 was shipped with the power supplies removed. The Cisco 7513 and Cisco 7513-MX are shipped with one power supply as standard equipment; a second power supply is optional equipment. When purchased new (not upgraded), the Cisco 7576 comes with two AC-input power supplies as standard equipment. Install power supplies only after you have finally installed or rack-mounted the chassis.
Based on the NFPA 70 National Electrical Code, you should use a 35-amp (A) overcurrent protector to meet the requirement for the overcurrent protector size of 125 percent of the load current, which is approximately 27A. An overcurrent protector rated for 30A can be used only if it has been listed by the safety agency for operation at 100 percent of its rating.
Note The following procedure applies to AC-input and DC-input power supplies, with specific differences clearly noted. To prevent system problems, do not mix AC-input and DC-input power supplies in the same chassis.
Follow this procedure to install a power supply in the Cisco 7513, Cisco 7513-MX, and Cisco 7576:
Step 1 If possible, turn off the circuit breaker to which you will connect power and tape the breaker switch in the off position.
Step 2 Check the switch on the face of the power supply, and place it in the off (O) position. The interlock tab should not extend out of the unit.
Step 3 Hold the supply as shown in Figure 3-17and slide it into the power supply bay. Push the supply all the way into the chassis until the sides are flush against the chassis frame. To prevent damaging the backplane connector, do not jam the power supply into the bay.
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