Chapter2 Preparing for Installation
Installation Site Requirements
2-16
CiscoXR 12406 Router Installation Guide
OL-13831-01
Figure2-3 AC Power Plugs
Power Connection Guidelines for DC-Powered Routers
When the Cisco XR 12406 Router operates with a DC PDU, observe these
guidelines:
•A Cisco XR 12406 Router configured with a DC PDU and DC-input PEMs
require a dedicated 45A DC circuit breaker for each DC power source. This
circuit breaker protects against short-circuit and overcurrent faults in
accordance with United States National Electrical Code NFPA 70 (United
States), Canadian Electrical Code, part I, CSA C22.1 (Canada), and IEC 364
(other countries).
•DC power cable leads should be #6 American Wiring Gauge (AWG)
high-strand-count wire.
•Provide a dedicated power source for each power entry module installed in
the router.
•Install an uninterruptable power source where possible.
57648
North American plug
L6-20 20A
Australian plug
AS 3112 15A
European plug
CEE 7/7 16A
Italian plug
CEI 23-16/VII 16A
United Kingdom plug
BS 1363 13A