Cisco Universal Broadband Router Cisco uBR10012 User manual

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Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
Cisco uBR10012 Series Universal Broadband
Router–Quick Start Guide
Part Number: OL-24972-01
Revised: April 15, 2010
Contents
This document includes procedures for installing and removing the Cisco uBR10012 components that
are shipped with the Cisco uBR10012 universal broadband router. This document also includes technical
specifications and troubleshooting information.
•Objective, page 2
•Audience, page 2
•Cisco One-Year Limited Hardware Warranty Terms, page 2
•Overview, page 4
•Preparing the Site, page 18
•Installing the Chassis, page 22
•Connecting Cables, page 47
•Powering On the Cisco uBR10012 Router, page 52
•Configuring the Cisco uBR10012 Router at Startup, page 58
•Troubleshooting, page 63
•Related Documentation, page 71
•Obtaining Documentation and Submitting a Service Request, page 71

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Objective
Objective
The purpose of this document is to provide installation, removal, and troubleshooting information for
the fan assembly module installed in the Cisco uBR10012 universal broadband router.
Audience
This document is intended for field service engineers who are familiar with Cisco products and headend
cable installation procedures.
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030.
Cisco One-Year Limited Hardware Warranty Terms
There are special terms applicable to your hardware warranty and various services that you can use
during the warranty period. Your formal Warranty Statement, including the warranties and license
agreements applicable to Cisco software, is available on Cisco.com. To access and download the Cisco
Information Packet and your warranty and license agreements from Cisco.com:
1. Launch your browser, and go to this URL:
http://www.cisco.com/en/US/products/prod_warranties_listing.html
The Warranties and License Agreements page appears.
2. To read the Cisco Information Packet, follow these steps:
a. Click the Information Packet Number field, and make sure that the part number
78-5235-03A0 is highlighted.
b. Select the language in which you would like to read the document.
c. Click Go.
The Cisco Limited Warranty and Software License page from the Information Packet appears.
d. Read the document online, or click the PDF icon to download and print the document in Adobe
Portable Document Format (PDF).
Note You must have Adobe Acrobat Reader to view and print PDF files. You can download the reader
from the Adobe website: http://www.adobe.com
3. To read translated and localized warranty information about your product:
a. Enter this part number in the Warranty Document Number field:
78-10747-01C0
b. Select the language in which you would like to view the document.
c. Click Go. The Cisco warranty page appears.
d. Read the document online, or click the PDF icon to download and print the document in Adobe
Portable Document Format (PDF).

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Cisco One-Year Limited Hardware Warranty Terms
You can also contact the Cisco service and support website for assistance:
http://www.cisco.com/en/US/support/
Duration of Hardware Warranty
One (1) year
Replacement, Repair, or Refund Policy for Hardware
Cisco or its service center will use commercially reasonable efforts to ship a replacement part within ten
(10) working days after receipt of a Return Materials Authorization (RMA) request. Actual delivery
times can vary, depending on the customer location.
Cisco reserves the right to refund the purchase price as its exclusive warranty remedy.
To Receive a Return Materials Authorization (RMA) Number
Contact the company from whom you purchased the product. If you purchased the product directly from
Cisco, contact your Cisco Sales and Service Representative.
Complete the information below, and keep it for reference.
Company product purchased from
Company telephone number
Product model number
Product serial number
Maintenance contract number

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Overview
Overview
The Cisco uBR10012 universal broadband router is an aggregation platform that provides a high-end,
high-performance, high-capacity Cable Modem Termination System (CMTS) solution. The system
provides high-speed data, broadband entertainment, and IP telephony services over a coaxial cable
connection to residential and commercial subscribers using cable modems or digital set-top boxes
(STBs). The router enables high-speed data services to be packaged like they are in basic cable television
services or video programming. (See Figure 1.)
Figure 1 Cisco uBR10012 Universal Broadband Router
The Cisco uBR10012 universal broadband router:
•Operates with cable modems or STBs that support the DOCSIS 1.0, DOCSIS 1.1, DOCSIS 2.0, and
DOCSIS 3.0 versions of the DOCSIS specification. The router supports the 6 MHz North American
channel plans using the ITU J.83 Annex B RF standard.
•Supports downstream and upstream digitally modulated signals.
•Supports multiple standards and multiple interfaces and allows operators to choose the appropriate
services and devices for their CMTS platform.
•Supports data and digitized voice connectivity over a bidirectional cable television and IP backbone
network.
•Uses the same Parallel Express Forwarding (PXF) technology used by the Cisco ESR10000 edge
services router.
95544
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Overview
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
For translations of the warnings used in this document, see the Cisco Regulatory Compliance and Safety
Information document that comes with this chassis. Reference the translations by statement number (ex:
Statement 1030).
Cisco uBR10012 Universal Broadband Router Components
The Cisco uBR10012 router chassis is designed for front and rear access. The two AC or DC power entry
modules (PEMs), two Performance Routing Engine (PRE) modules, an LCD panel, and the fan assembly
module are accessed from the front of the chassis. The eight slots for cable interface line cards, four full
slots for network uplink line cards, and two slots for the Timing, Communication, and Control Plus
(TCC+) and the DOCSIS Timing, Communication, and Control (DTCC) cards are accessed from the rear
of the chassis. (See Figure 2.)
Note Figure 2 is a sample representation of the Cisco uBR10012 chassis with the DC PEM
(UBR10-PWR-DC=) modules.
Note If the only available power supply source is 100-120 VAC, you can use the auxiliary AC-input power
shelf. The AC-input power shelf converts AC to DC power for the Cisco uBR10012 router. If you are
using the optional 2400 W AC-input power shelf, refer to 2400W AC-Input Power Shelf Installation
Guide.

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Overview
Figure 2 Front and Rear Chassis Views
Fan Assembly Modules
The Cisco uBR10012 chassis uses a fan assembly module containing fans to supply cooling air to the
chassis. The fan assembly connects to the chassis through a blind mate connector that plugs into the
cable assembly and then into the chassis backplane. The fan assembly modules are identified by their
product part numbers. The fan assembly modules supported on the Cisco uBR10012 chassis are:
•Fan Assembly Module (UBR10-FAN-ASSY=)
•Fan Assembly Module (UBR10012-FAN-PLUS=)
1Fan assembly 6PEM modules
2LCD module 7Cable interface line cards
3
PRE processor modules
8
High-speed, high-performance network uplink line
cards
4DC PEM power switches 9TCC+ and DTCC timing cards
5DC power cable and ground cable exit —
ALARMS
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9

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Overview
Fan Assembly Module (UBR10-FAN-ASSY=)
This fan assembly module has four internal fans that draw cooling air into the front of the chassis and
direct it across the internal components. The air is exhausted through the openings in the rear of the
chassis (see Figure 3). The fan assembly module works at two speeds:
•Low speed (with a clean air filter)
•High speed (with a clean air filter)
The temperature of the fan module at the module air outlet determines the operating speed. Three LEDs
(FAN OK, SINGLE FAN FAIL, and MULTI FAN FAIL) indicate the status of the fan assembly.
Figure 3 Fan Assembly Module (UBR10-FAN-ASSY=)
Fan Assembly Module (UBR10012-FAN-PLUS=)
This fan assembly has nine internal fans that draw cooling air into the front of the chassis and directs it
across the internal components (see Figure 4). This fan assembly module provides:
•Increased cooling capability
•Higher redundancy in case of a failure
•Repositioned thermal sensor that detects the ambient temperature of the cable plant or facility and
adjusts the variable fan speeds to maintain the temperature
1Fan assembly module —
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Overview
Figure 4 Fan Assembly Module (UBR10012-FAN-PLUS=)
This fan assembly module works at four variable speed levels (0, 1, 2, and 3). The operating speed of the
fan is determined by the temperature of the facility. A thermistor, mounted on the fan assembly module,
is placed in front of the vent holes on the front panel. It measures the ambient air temperature on the
outside of the fan module. The threshold temperatures and speed levels are set internally and the fan
assembly controller monitors the thermistor and controls the speed of the fan. When powered on, the
fans operate at a speed according to the ambient average air temperature of the facility at the appropriate
speed level.
Note On startup, it may take up to 30 seconds for the fans to stabilize at the appropriate speed.
Three LEDs (FAN OK, SINGLE FAN FAIL, and MULTI FAN FAIL) indicate the status of the fan
assembly. In addition, there is a PRODUCT ID LED/switch on the front panel of the fan assembly
module.
1Fan assembly module —
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PRODUCT ID
UBR10012-FAN-PLUS
1

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Overview
Table 1 lists the default activation status of the PRODUCT ID LED/switch when it is shipped.
When you press the PRODUCT ID LED/switch it illuminates (green) and the Cisco IOS software
identifies the fan assembly module as UBR10012-FAN-PLUS only if you are running a supported Cisco
IOS release on the chassis. Otherwise, the software reports the default UBR10-FAN-ASSY product part
number and a FAN-MISSING alarm may be randomly raised. To clear the alarm, see “Troubleshooting”
section on page 63.
Tip Use a small object, such as a paper clip, to press the PRODUCT ID LED/switch inside the cavity on the
front panel of the fan assembly module.
Note If you are installing the fan module (spare) in an existing Cisco uBR10012 router chassis, ensure that
the Cisco IOS Release running on the chassis supports the PRODUCT ID LED/switch feature before
installing the module.
Note Even if you are using a supported Cisco IOS release, the software may not identify the fan assembly as
UBR10012-FAN-PLUS. If this occurs, ensure that the PRODUCT ID LED/switch is illuminated and
then either reload the software, or physically remove the fan assembly module for at least 1 minute and
then reinsert it.
Table 2 summarizes the specifications of both the fan assembly modules.
Table 1 PRODUCT ID LED/Switch Default Activation Status
Ordered Equipment PRODUCT ID LED/Switch Status
Fan module (Spare) Activated
Fan module and Cisco uBR10012 chassis running unsupported
Cisco IOS Release
Not activated
Fan module and Cisco uBR10012 chassis running supported
Cisco IOS Release1
1. For information on Cisco IOS Releases that support the PRODUCT ID LED/switch feature, see the Cisco uBR10012 Router
Release Notes for Cisco IOS Release 12.2(33)SCE.
Activated
Table 2 Specifications of the Fan Assembly Modules
Component UBR10012-FAN-PLUS= UBR10-FAN-ASSY=
Power Consumption (Max) 224 W 185 W
Fans 9 4
Operating Speed Levels 4 2
LEDs 3 3
PRODUCT ID LED/switch Yes No
Weight 22 lbs (10 kg) 30 lbs (3.16 kg)
Label on Front Panel Blue White

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AC Power Entry Modules
The Cisco uBR10012 router is shipped with two AC power entry modules (AC PEMs) that provide
power supply to the system. One AC PEM module is sufficient to provide power for a fully configured
chassis. However, if one AC PEM module fails, the other AC PEM module automatically begins
providing power to the entire chassis, without impacting the system operation.
The AC PEM modules use a standard 200–240 VAC (50 or 60 Hz) input power obtained through power
receptacles on the front panel of each PEM. The two AC PEMs convert the AC power to provide filtered,
redundant, and load shared DC power to the Cisco uBR10012 chassis. The AC PEM modules can be
identified by their product part numbers.
The AC PEM modules supported on the Cisco uBR10012 chassis are:
•AC PEM Module (UBR10-PWR-AC=)
•AC PEM Module (UBR10-PWR-AC-PLUS=)
AC PEM Module (UBR10-PWR-AC=)
This AC PEM module provides a power output of 2400 W with a single AC-input power connection.
Figure 5 shows the faceplate of this AC PEM module, which has:
•AC power receptacle—This connects to the facility power source.
•AC power switch—This powers on the AC PEM module.
•Two handles—These help during installation and removal of the AC PEM.
Two LEDs (POWER and FAULT) indicate the status of the AC PEM module.

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Overview
Figure 5 AC PEM Module (UBR10-PWR-AC=)
AC PEM Module (UBR10-PWR-AC-PLUS=)
This AC PEM module provides a power output of 3300 W with dual AC-input power connections. This
AC PEM module provides:
•Increased power to the chassis
•Load shared power to the chassis (under normal conditions)
Note The two AC power cables must be connected and powered on for each AC PEM to function properly.
Ensure that you exercise caution while connecting the AC power cables because the facility power may
be energized. The AC PEM internal fans start working and are audible as soon as the AC power cables
are installed and AC power is supplied to the AC PEMs, although the AC power enable switch is in the
Standby (0) position.
Note The U-CHAS-COVER-PLUS= front cover must be used with the Cisco uBR10012 chassis for proper
routing of the AC cables from the 3300 W AC PEMs through the chassis to the facility power source.
1Power cord clips 3AC power switch
2AC power receptacle —
62520
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3

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Figure 6 shows the faceplate of the AC PEM module, which has:
•Two AC power receptacles—These connect to the facility power source.
•AC PEM enable power switch—This powers on the AC PEM module.
•AC power cord clips—These help to secure the AC power cables.
•Two handles—These help during the removal and installation of the AC PEM module in the Cisco
uBR10012 chassis.
Figure 6 AC PEM Module (UBR10-PWR-AC-PLUS=)
Four LEDs (V1 POWER, V2 POWER, POWER, and FAULT) indicate the status of the AC PEM module.
In addition, there is a PRODUCT ID LED/switch on the front panel of the AC PEM module.
1AC power receptacles 4Handles on the AC PEM
2AC PEM enable power switch 5PRODUCT ID LED/switch
3AC power cord clips —
279740
V1 POWER
V2 POWER
POWER
FAULT
PRODUCT ID
UBR10K-PWR-AC-PLUS
SAFETY WARNING LABEL
200-240V
~
, 13A, 50/60Hz
ENABLE
INPUT 1 INPUT 2
1
4
4
3
5
3
2

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Overview
Table 3 lists the default activation status of the PRODUCT ID LED/switch when it is shipped.
When you press the PRODUCT ID LED/switch it illuminates (green) and the Cisco IOS software
identifies the PEM module as UBR10-PWR-AC-PLUS only if you are running a supported Cisco IOS
release on the chassis. Otherwise, the software reports the default UBR10-PWR-AC product part number
and the show environment command randomly displays the PEM type as DC instead of AC.
Tip Use a small object, such as a paper clip, to press the PRODUCT ID LED/switch inside the cavity on the
front panel of the AC PEM module.
Note If you are installing the AC PEM module (spare) in an existing Cisco uBR10012 router chassis, ensure
that the Cisco IOS Release running on the chassis supports the PRODUCT ID LED/switch feature before
installing the module.
Note Even if you are using a supported Cisco IOS release, the software may not identify the PEM module as
UBR10-PWR-AC-PLUS. If this occurs, ensure that the PRODUCT ID LED/switch is illuminated and
then either reload the software, or physically remove the AC PEM module for at least 1 minute and then
reinsert it.
Table 4 summarizes the specifications of the AC PEM modules.
Table 3 PRODUCT ID LED/Switch Default Activation Status
Ordered Equipment PRODUCT ID LED/Switch Status
AC PEM module (Spare) Activated
AC PEM module and Cisco uBR10012 chassis running unsupported
Cisco IOS Release
Not activated
AC PEM module and Cisco uBR10012 chassis running supported
Cisco IOS Release1
1. For information on Cisco IOS Releases that support the PRODUCT ID LED/switch feature, see the Cisco uBR10012 Router
Release Notes for Cisco IOS Release 12.2(33)SCE.
Activated
Table 4 Specifications of the AC PEM Modules
Component UBR10-PWR-AC-PLUS= UBR10-PWR-AC=
Cisco AC PEM (Part Number)1341-0387-01 34-1966-02
Power Output 3300 W 2400 W
DC-output Voltage 57.5 VDC 54 VDC
AC-input Power Connections 16 A + 16 A 13 A
AC-input Voltage 200-240 VAC (50 or 60 Hz) 200-240 VAC (50 or 60 Hz)
Physical Differences
Weight 19 lbs (8.64 kg) 14.7 lbs (6.65 kg)

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Overview
DC Power Entry Modules
The Cisco uBR10012 router is shipped with two DC power entry modules (DC PEMs) that provide
power to the system. One DC PEM can provide sufficient power for a fully configured chassis. However,
if one DC PEM fails, the other automatically begins providing power to the entire chassis, without
impacting the system operation.
The two DC PEMs provide filtered, redundant, and load shared DC power to the
Cisco uBR10012 chassis. The DC PEM modules can be identified by their product part numbers.
The DC PEM modules supported on the Cisco uBR10012 chassis are:
•DC PEM Module (UBR10-PWR-DC=)
•DC PEM Module (UBR10-PWR-DC-PLUS=)
DC Power Entry Module (UBR10-PWR-DC=)
Figure 7 shows the faceplate of the DC PEM module, which has:
•DC power switch—This powers on the DC PEM module.
•External alarm connector—This is an input connector to monitor the external alarms from the
external AC-input power shelf.
•Two handles—These help during installation and removal of the DC PEM.
LEDs 4 2
PRODUCT ID LED/switch Yes No
1. The 34- part number is listed on compliance label of the AC PEM.
Table 4 Specifications of the AC PEM Modules (continued)
Component UBR10-PWR-AC-PLUS= UBR10-PWR-AC=

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Overview
Figure 7 DC Power Entry Module (UBR10-PWR-DC=)
Three LEDs (POWER, MISWIRE, and FAULT) indicate the status of the DC PEM module.
Note The DC PEMs receive –48 /–60 VDC power through two separate DC terminal blocks located beneath
each PEM in the midplane of the Cisco uBR10012 chassis. For details on how to connect the DC cables,
see “Connecting the DC Power Cables for the UBR10-PWR-DC= Module” section on page 34.
DC Power Entry Module (UBR10-PWR-DC-PLUS=)
This DC PEM module provides a power output of 3300 W with dual DC-input power connections. This
DC PEM module provides:
•Increased power to the chassis
•Load shared DC power to the chassis (under normal conditions)
Note Four DC power cables must be connected and powered on for the DC PEM to function properly. The
four cables must be attached to the input studs on the DC power terminal blocks on the front panel of
each DC PEM. As soon as the DC cables are connected to the facility power source and the facility power
is turned on, the DC PEM internal fans start working and are audible, although the DC power enable
switch is in Standby (0) position. For details on how to connect the DC cables, see “Connecting the DC
Power Cables for the UBR10-PWR-DC-PLUS= Module” section on page 35.
1Handles on the DC PEM 3DC power switch
2External alarm connector —
62518
POWER
MISWIRE
FAULT
1
1
2
3

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Note The U-CHAS-COVER-PLUS= front cover must be used with the 3300 W DC PEM modules for proper
routing of the DC cables through the chassis to the facility power source.
Figure 8 shows the faceplate of this DC PEM module, which has:
•Two DC power terminal blocks—These connect to the facility power source.
•DC power enable switch—This powers on the DC PEM module.
•Two Handles—These help during the removal and installation of the DC PEM module.
•External alarm connector—This is an input connector to monitor the alarms from the external
AC-input power shelf.
•DC power cord clips—These help to secure the DC power cables.
Figure 8 DC Power Entry Modules (UBR10-PWR-DC-PLUS=)
1DC power terminal blocks 4External alarm connector
2DC power enable switch 5DC power cord clips
3Handles on the DC PEM 6PRODUCT ID LED/switch
249744
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3

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Overview
Five LEDs (V1 POWER, V2 POWER, POWER, MISWIRE, and FAULT) indicate the status of the DC
PEM module. In addition, there is a PRODUCT ID LED/switch on the front panel of the DC PEM
module.
Table 5 lists the default activation status of the PRODUCT ID LED/switch when it is shipped.
When you press the PRODUCT ID LED/switch it illuminates (green) and the Cisco IOS software
identifies the PEM module as UBR10-PWR-DC-PLUS only if you are running a supported Cisco IOS
release on the chassis. Otherwise, the software reports the default UBR10-PWR-DC product part number
and the show environment command randomly displays the PEM type as AC instead of DC.
Tip Use a small object, such as a paper clip, to press the PRODUCT ID LED/switch inside the cavity on the
front panel of the DC PEM module.
Note If you are installing the DC PEM module (spare) in an existing Cisco uBR10012 router chassis, ensure
that the Cisco IOS Release running on the chassis supports the PRODUCT ID LED/switch feature before
installing the module.
Note Even if you are using a supported Cisco IOS release, the software may not identify the PEM module as
UBR10-PWR-DC-PLUS. If this occurs, ensure that the PRODUCT ID LED/switch is illuminated and
then either reload the software, or physically remove the PEM module for at least 1 minute and then
reinsert it.
Table 5 PRODUCT ID LED/Switch Default Activation Status
Ordered Equipment
PRODUCT ID LED/Switch
Status
DC PEM module (Spare) Activated
DC PEM module and Cisco uBR10012 chassis running unsupported
Cisco IOS Release
Not activated
DC PEM module and Cisco uBR10012 chassis running supported
Cisco IOS Release1
1. For information on Cisco IOS Releases that support the PRODUCT ID LED/switch feature, see the Cisco uBR10012 Router
Release Notes for Cisco IOS Release 12.2(33)SCE.
Activated

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Preparing the Site
Table 6 summarizes the specifications of the DC PEM modules.
Preparing the Site
Do not unpack the chassis until you are ready to install it. Keep the chassis in the shipping container to
prevent accidental damage until you determine an installation site.
Before you install the Cisco uBR10012 universal broadband router, review the following:
•The environmental conditions in your installation site must be met to maintain normal operation.
•The power outlet meets the requirements at your installation sites.
•The cabling requirements for your installation sites.
•Rack-mounting requirements.
•The equipment required to install the router.
Table 6 Specifications of the DC PEM modules
Component UBR10-PWR-DC-PLUS= UBR10-PWR-DC=
Cisco DC PEM (Part
Number)1
1. The 34- part number is listed on compliance label of the DC PEM.
341-0388-01 34-1651-04 and
34-1651-05
34-1651-05
Power output 3300 W 2400 W 3000 W
DC-input Voltage –48 to –60 VDC
nominal
–48 to –60 VDC
nominal
–55 to –60 VDC nominal
DC-output Voltage
(nominal)
–57.5 V See footnote2
2. For the 34-1651-04 and 34-1651-05 DC PEM modules, the DC-output voltage varies according to the DC-input voltage with
a drop in voltage between 1 V and 1.85 V. The allowable DC-input range is -40.5 V to -72 V. The DC-output voltage is not
constant for these DC PEM modules. For the 341-0388-01 DC PEM module, the DC-output voltage is regulated and is
constant.
DC-input Current
Connections
50 A + 50 A 50 A 56 A
Physical Differences
LEDs 5 3 3
Weight 16 lbs (7.25 kg) 10 lbs (4.54 kg) 10 lbs (4.54 kg)
PRODUCT ID LED/switch Yes No No

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Preparing the Site
Site Environment Guidelines
Warning This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock and key, or other means of security.
Statement 1017
Warning This product requires short-circuit (overturned) protection, to be provided as part of the building
installation. Install only in accordance with national and local wiring regulations. Statement 1045
Follow these site environment guidelines:
•The site must be capable of maintaining an ambient temperature of 41° through 104° Fahrenheit (5°
to 40° Celsius).
•The chassis must not be placed where heated exhaust air from other systems can enter the air intake
vent at the bottom front, because this can cause overheating of the system.
•A minimum clearance of 4 in. (10.2 cm) from the vents on the front and back of the chassis must be
maintained to allow for adequate airflow.
•Approximately 3 to 4 ft (91.44 to 121.92 cm) clearance at the front and rear of the chassis must be
maintained for cabling and normal system maintenance.
Temperature and Humidity Requirements
Table 7 lists the nominal operating and nonoperating environments requirements. Any measurement that
approaches the minimum or maximum of a range indicates a potential problem.
Table 7 Specifications for Operating and Nonoperating Environments
Specification Minimum Maximum
Temperature, ambient operating 41°F (5°C) 104°F (40°C)
Temperature, ambient nonoperating and storage –40°F (–40°C) 158°F (70°C)
Humidity, ambient (noncondensing) operating 5% 85%
Humidity, ambient (noncondensing) nonoperating and storage 5% 95%
Altitude, operating (over allowable temperature) 32°F
–200 ft (–60.9 m)
104°F (40°C)
10,000 ft (3048 m)
Altitude, nonoperating (over allowable temperature) –200 ft (–60.9 m) 30,000 ft (9144 m)

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Cisco uBR10012 Series Universal Broadband Router–Quick Start Guide
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Preparing the Site
Power Guidelines
Caution The Cisco uBR10012 router installation must comply with all applicable codes and is approved for use
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:
•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.
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 Table 7. These DC-input voltage
nominal ranges are safety extra-low voltage (SELV) compliant and deliver the rated power at the allowed
current levels.
Table 8 summarizes the power output, DC-input voltage, and DC-input current values for the DC PEM
modules.
Table 8 Power Output, DC-input Voltage, and DC-input Current Values for the DC PEM
Cisco Product Part Number
Cisco DC
PEM (Part
Number)1
1. The 34- part number is listed on the compliance label of the DC PEM.
Power Output DC-input Voltage
DC-input
Current
UBR10-PWR-DC= 34-1651-04 2400 W
maximum
–48 to –60 VDC
nominal
50 A
34-1651-05 2400 W
maximum
–48 to –60 VDC
nominal
50 A
3000 W
maximum
–55 to –60 VDC
nominal
56 A
UBR10-PWR-DC-PLUS= 341-0388-01 3300 W
maximum
–48 to –60 VDC
nominal
50 A + 50 A