Cisco 7206 - VXR Router Installation Manual page 91

Chapter 3 Installing the Cisco 7206
Figure 3-23 Connecting DC-Input Power
Step 5 Insert the stripped end of the +V lead all the way into the +V lead receptacle and tighten the receptacle
screw using the same 3/16-inch flat-blade screwdriver. Repeat this step for the –V lead.
Note
After tightening the receptacle screw for the ground, +V, and –V DC-input leads, use the cable tie (see
Step 6
Figure
Note
Switch the circuit breaker to the ON position.
Step 7
Each DC-input power supply operating at 24 VDC requires a minimum of 19A service. Each DC-input
Note
power supply operating at 48 VDC requires a minimum of 13A service. Each DC-input power supply
operating at 60 VDC requires a minimum of 8A service.
The preceding values are absolute maximum values. Typical system configurations use substantially
less. To obtain typical values for your configuration, contact your Cisco sales representative.
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. Site wiring and circuit breakers need to be sized to accommodate the maximum values for
safety reasons.
OL-5102-02
Power switch
Cable tie
Ground lead
service loop
DC power leads
Make sure 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
3-23) to secure the three leads to the power supply faceplate.
When securing the ground, +V, and –V DC-input leads to the power supply faceplate, leave a
small service loop in the ground lead to ensure that the ground lead is the last lead to disconnect
from the power supply if a great deal of strain is placed on all three leads (refer to
5.
Cisco 7206 Installation and Configuration Guide
Connecting Power
Figure 3-23).
3-23