Power Guidelines - Cisco UBR10012 Quick Start Manual

Preparing the Site

Power Guidelines

The Cisco uBR10012 router installation must comply with all applicable codes and is approved for use
Caution
only with copper conductors. The ground bond fastening hardware should be of compatible material and
preclude loosening, deterioration, and electrochemical corrosion of hardware and joined material.
Attachment of the chassis ground to a central office or other interior ground system should be made with
a minimum of a 6 AWG, copper ground conductor.
Follow these precautions and recommendations when planning power connections to the
Cisco uBR10012 router:
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•
•
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Warning A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. Statement
1022
Power Connection Guidelines for DC-powered Systems
Although the allowed DC-input voltage is between –40.5 to –72 VDC and the router can operate in this
range with no harm, the recommended nominal ranges are defined in
nominal ranges are safety extra-low voltage (SELV) compliant and deliver the rated power at the allowed
current levels.
Table 8
modules.
Table 8
Cisco Product Part Number
UBR10-PWR-DC=
UBR10-PWR-DC-PLUS= 341-0388-01
1. The 34- part number is listed on the compliance label of the DC PEM.
Cisco uBR10012 Series Universal Broadband Router–Quick Start Guide
20
Ensure that you are using proper cables and have circuit breakers installed.
Check the power at your site before installation and periodically after installation to ensure that you
are receiving uninterrupted power. Install a power conditioner if necessary.
Provide proper grounding.
Ensure that the frame ground is tied to a single building ground.
Use a 6 AWG, copper ground conductor (minimum requirement) when attaching the chassis ground
to a central office or other interior ground system. An insulation rating of 167° Fahrenheit (75°
Celsius) is required for the 6 AWG wire for 3000 W of power.
summarizes the power output, DC-input voltage, and DC-input current values for the DC PEM
Power Output, DC-input Voltage, and DC-input Current Values for the DC PEM
Cisco DC
PEM (Part
Number)
34-1651-04
34-1651-05
1
Power Output DC-input Voltage
2400 W –48 to –60 VDC
maximum nominal
2400 W –48 to –60 VDC
maximum nominal
3000 W –55 to –60 VDC
maximum nominal
3300 W –48 to –60 VDC
maximum nominal
Table 7. These DC-input voltage
DC-input
Current
50 A
50 A
56 A
50 A + 50 A
OL-24972-01