Chapter 2 Installing and Removing Power Components
Power Component Information Common to Two Types of Power System
The color coding of the source DC power cable leads depends on the color coding of the site DC power source. Typically, green or green and yellow indicates that the cable is a ground cable. Follow your local practices for cable color code and markings. You must ensure that the power cables are connected to the
In some cases, the source DC cable leads might have a positive (+) or negative
Caution When installing DC power cables, make sure that the polarity of the DC input wiring is correct.
For additional power details, see Appendix A, “Cisco CRS Carrier Routing System
Modular Configuration DC Power
The Cisco CRS
Note Depending on the hardware deployed at your site, your system may not consume the maximum power supplied by the power system.
The Cisco CRS
If DC power to one modular configuration power shelf fails, the other power shelf provides enough power for the chassis. This 2N power redundancy enables the routing system to operate in spite of single power failure.
Each power shelf operates with up to four DC inputs of
Cisco CRS Carrier Routing System
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