Chapter2 Preparing for Installation
Safety and Compliance
2-4
CiscoXR 12406 Router Installation Guide
OL-13831-01
•A Cisco XR 12406 Router with an AC power distribution unit (PDU) and
AC-input power supplies are shipped with AC power cords equipped with
three-wire electrical grounding-type plugs that will fit into only a
grounding-type power outlet. This is a safety feature. The equipment
grounding should be in accordance with local and national ele ctrical codes.
•A Cisco XR 12406 Router with a DC PDU and DC-input power entry
modules (PEMs) require an external 45A DC circuit breaker for each DC
power source. This circuit breaker should protect against short-circui t 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).
•Only a DC power source that complies with the safety extra-low voltage
(SELV) requirements in UL 1950, CSA-C22.2 No. 950, EN60950, ACA
TS001, AS/NZS 3260, and IEC60950 should be connected to a Cisco XR
12406 Router with DC PDU and DC-input PEMs.
•A Cisco XR 12406 Router configured with DC-input PEMs should be
installed in a restricted access area in accordance with Arti cles 110-16,
110-17, and 110-18 of the National Electric Code, ANSI/ NFPA 70.
•A Cisco XR 12406 Router configured with a DC PDU shall have a readily
accessible disconnect device incorporated in the fixed wiring.
Compliance and Safety Information
The Cisco XR 12406 Router is designed to meet the r egulatory compliance and
safety approval requirements. Refer to the Regulatory Compliance and Safety
Information for the Cisco 12000 Series Router if you require addi tional
compliance information (seethe “Obtaining Documentation, Obtaining Support,
and Security Guidelines” section on page-xiv for site information).