Cisco Systems Cisco XR 12416 manual DC-Input Power Shelf

Chapter 1 Product Overview

Physical and Functional Description of Router

In the DC-input power configuration:

•Modules A1 and B1 provide redundant power for system load zone 1 (the upper blower module and the upper card cage).

•Modules A2 and B2 provide redundant power for system load zone 2 (the switch fabric card cage, the lower card cage, and the lower blower module).

Figure 1-7 DC-Input Power Shelf

PWR OK
	PWR OK
FAULT	PWR OK
	PWR OK
	FAULT
TEMP	FAULT
	FAULT
	TEMP
	TEMP
	TEMP

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Caution A router configured for source DC operation must be operated with 4 DC-input PEMs installed at all times for electromagnetic compatibility (EMC).

Note DC PEMs support online insertion and removal (OIR) which means that you can remove and replace one PEM in each load zone (A1 or B1; A2 or B2) while the system remains powered on.

DC power to the router is provided from cables from a DC power source that are connected to threaded terminal studs on the back of the DC-input power shelf as shown in Figure 1-8.

	Cisco XR 12416 Router Installation Guide
OL-13833-01		1-11