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Cisco 7304 Network Service Engine Installation and Configuration
OL-3967-01
Chapter 4 Removing and Installing the NSE
Reconnecting Input Power and Powering Up the Router
Note
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.
To reconnect DC-input power to a Cisco 7304 router, complete the following steps:
Step 1
Ensure that the DC power line input leads are disconnected from the power source.
Step 2
If necessary, use a wire stripper to strip approximately 0.55 inch (14 mm) from the DC power line input
and ground leads.
Note
Do not consolidate the strands by soft soldering. Use 12 AWG (2.5mm) copper wire only.
Step 3
Insert the stripped end of the ground lead all the way into the ground lead receptacle on the DC-input
power supply and tighten the receptacle screw using a 1/8-inch flat-blade screwdriver. (See
Figure 4-13
.)
Step 4
Insert the stripped end of the +DC lead all the way into the lead receptacle and tighten the receptacle
screw using the same 1/8-inch flat-blade screwdriver. Repeat this step for the –DC lead.
Note
Make sure that the entire stripped end of each lead is inserted all the way into its receptacle. If any
exposed wire at the stripped end of a lead is visible after inserting the lead into its receptacle, remove
the lead from the receptacle, use the wire stripper to cut the stripped end of the lead, and repeat
Step 2
through
Step 5
.
Step 5
After tightening the receptacle screw for the ground and DC power line input leads, secure the leads to
the power supply faceplate. Use a cable tie to secure the three leads.
Note
When securing the ground and DC power line input leads to the power supply faceplate, leave a small
service loop in the ground lead to ensure that it is the last lead to disconnect from the power supply if a
great deal of strain is placed on all three leads. (See
Figure 4-13
.)
Step 6
Connect the ground and DC power line input leads to the power source.
Step 7
Repeat
Step 1
through
Step 6
if a second power supply is installed.
This completes the steps for reconnecting DC-input power to a Cisco 7304 router. Proceed to the
following section, “
Powering Up the Router
.”