6-46
Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
OL-32185-02
Chapter 6 Install and Upgrade Internal Modules and FRUs
Remove and Replace Cisco 4000 Series ISRs Power Supplies
Install DC Input Power on Cisco 4431 ISR
Warning
Before performing any of the following procedures, ensure that power is removed from the DC
circuit.
Statement 1003
Warning
Only trained and qualified personnel should be allowed to install, replace, or service
this equipment.
Statement 1030
This section describes how to install the DC power supply input power leads to the Cisco 4431 Router
DC input power supply.
• The color coding of the DC input power supply leads depend on the color coding of the DC power
source at your site. Ensure that the lead color coding you choose for the DC input power supply
matches the lead color coding used at the DC power source and verify that the power source is
connected to the negative (–) terminal and to the positive (+) terminal on the power supply.
• Ensure that the chassis ground is connected on the chassis before you begin installing the DC power
supply. Follow the steps provided in the “Chassis Grounding” section on page 3-19.
Wire the DC Input Power Source
The Cisco 4431 ISR DC power supply has a terminal block that is installed into the power supply
terminal block header.
To wire the DC input power source:
Step 1 If you have redundant power supplies, ensure that the power switch is in the Standby position.
Note It is not required to place the power switch in the Standby position if you want to hot-swap a
single power supply.
Step 2 Insert the power supply in the power-supply slot, and gently push it into the slot. When correctly
installed:
• For Cisoc 4431 ISR, the DC power supply (excluding the extraction handle) is flush with the router.
• For Cisco 4451ISR and Cisco 4351ISR, the DC power supply (excluding the extraction handle) is
recessed from the router bezel.
Step 3 Wire can be stripped and terminated directly to the power supply terminal block, or a crimp style spade
terminal lug can be used. If you are using a terminal lug, follow the manufacturer's instructions for
terminating the lug to the wire. If terminating directly to the terminal block using bare wire, follow the
instructions in the Figure 6-35. Use a wire-stripping tool to strip each of the two wires coming from the
DC input power source and strip the wires to approximately 0.39 inch (10 mm) +
0.02 inch (0.5 mm). It
it recommended that 14 AWG insulated wire be used. Do not strip more than the recommended length
of wire because doing so could leave the wire exposed from the terminal block. Figure 6-33 shows a
stripped DC input power source wire.
To Next Page
Loading...
