Cisco UBR7100E, UBR7100 User Manual

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Product Overview

This chapter provides physical and functional overviews of Cisco uBR7100 series universal broadband routers and contains the following sections that describe router hardware, major components, and functions of hardware-related features:

• Product Description, page 1-1

• Fixed Interface Units, page 1-6

• Field-Replaceable Units, page 1-7

• Functional Overview, page 1-11

Note Unless otherwise indicated, the term Cisco uBR7100 series in this manual refers to all models of the

Cisco uBR7100 series universal broadband router, including the Cisco uBR7111, Cisco uBR7111E, Cisco uBR7114, and Cisco uBR7114E routers.

Product Description

The Cisco uBR7100 series universal broadband router is a cable modem termination system (CMTS) that provides Internet, local area network (LAN), and wide area network (WAN) access for cable modems and set-top boxes (STBs) over a coaxial cable connection. The router enables high-speed data services to be packaged similar to basic cable television service or video programming.

The Cisco uBR7100 series routers support two-way data and digitized voice connectivity over a bidirectional cable television and IP backbone network, using one of the following two standards:

• The Cisco uBR7111 and Cisco uBR7114 support the Data-over-Cable Service Interface

Specifications (DOCSIS)—DOCSIS 1.0 and DOCSIS 1.1. DOCSIS supports the 6 MHz North American channel plans using the ITU J.83 Annex B RF standard. The downstream uses a 6 MHz channel width in the 85 to 860 MHz frequency range, and the upstream supports the 5 to 42 MHz frequency range.

• The Cisco uBR7111E and Cisco uBR7114E support the European Data-over-Cable Service

Interface Specifications (EuroDOCSIS)—EuroDOCSIS 1.0 and EuroDOCSIS 1.1. EuroDOCSIS supports the 8 MHz Phase Alternating Line (PAL) and Systeme Electronique Couleur Avec Memoire (SECAM) channel plans using the ITU J.112 Annex A RF standard. The downstream uses an 8 MHz channel width in the 85 to 860 MHz frequency range, and the upstream supports multiple channel widths in the 5 to 65 MHz frequency range.

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Product Description

The Cisco uBR7100 series router is a cost-effective solution for cable operators, Internet service providers, multiple tenant units (MTUs), and multiple dwelling unit (MDU) operators such as hotels, hospitals, and dormitories. The router contains a combination of fixed and modular RF, LAN, and WAN interfaces, which simplifies operation while still providing a system that is flexible enough to meet different customers’ needs. The Cisco uBR7100 series chassis includes an integrated upconverter and embedded dual 10/100BASE-T Ethernet interface.

Cisco uBR7100 Series Models

The Cisco uBR7100 series router has two models.

Cisco uBR7111 and Cisco uBR7111E

The Cisco uBR7111 and Cisco uBR7111E universal broadband routers provide the following fixed interfaces:

• A LAN interface with two Ethernet/FastEthernet ports

• A cable interface with one downstream port and one upstream port. The downstream port can be

output either as an RF signal through the integrated upconverter or as an IF signal for processing by an external upconverter.

• A modular single-width port adapter for flexibility in WAN interface connections.

Chapter 1 Product Overview

The Cisco uBR7111 router supports DOCSIS cable plants, and the Cisco uBR7111E supports EuroDOCSIS cable plants.

Cisco uBR7114 and Cisco uBR7114E

The Cisco uBR7114 and Cisco uBR7114E universal broadband routers provide the following fixed interfaces:

• A LAN interface with two Ethernet/FastEthernet ports

• A cable interface with one downstream port and four upstream ports. The downstream port can be

output either as an RF signal through the integrated upconverter or as an IF signal for processing by an external upconverter.

• A modular single-width port adapter allows flexibility in WAN interface connections.

The Cisco uBR7114 router supports DOCSIS cable plants, and the Cisco uBR7114E supports EuroDOCSIS cable plants.

Cisco uBR7100 Series Router Operational Features

The Cisco uBR7100 series routers have the following operational features:

• Single-side serviceability—All cables and LEDs are available from the rear panel.

• Environmental monitoring and reporting functions—Allow you to maintain normal system

operation by resolving adverse environmental conditions prior to loss of operation.

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• Front to back airflow—Internal fans provide all necessary cooling. External fan assemblies are not

required.

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Chapter 1 Product Overview

• Online insertion and removal (OIR)—Allows you to add, replace, or remove the modular port

• Downloadable software—Allows you to load new images into flash memory remotely, without

• Network management using integrated SNMP agent—Allows you to remotely manage the router.

Cisco uBR7100 Series Routers Physical Description

adapter without interrupting the system.

having to physically access the router, for fast, reliable upgrades.

Cisco uBR7100 series routers support CiscoWorks and CiscoView network management software.

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CiscoWorks—Lets you monitor complex internetworks that use Cisco routing devices and helps you plan, troubleshoot, and analyze your network. CiscoWorks uses the Simple Network Management Protocol (SNMP) to monitor and control any SNMP device on the network.

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CiscoView—A graphical SNMP-based device management tool that provides powerful real-time views of your networked Cisco devices. These views deliver a continuously updated physical picture of device configuration and performance conditions, with simultaneous views available for multiple device sessions. CiscoView runs from a centralized network management site from which you can review, reconfigure, and monitor essential device data from a simple GUI (that displays information such as dynamic status reports, performance statistics, and network inquiries) without having to physically check connections for each device, module, or port at every different or remote location.

Cisco uBR7100 Series Routers Physical Description

Each model includes the following physical features:

• Cable interface—One downstream and either one or four upstreams, depending on the model of the

router. The cable interface supports the DOCSIS 6 MHz, North American channel plan or the EuroDOCSIS 8 MHz PAL and SECAM channel plan, depending on the router model.

• Integrated upconverter—The downstream channel can be output using the router’s integrated

upconverter, producing an RF signal suitable for transmission over the coaxial cable network, saving both the money and rack space required by an external upconverter. However, for existing cable plants, the downstream can also be output to an external upconverter.

• Fixed LAN interface with two ports—10BASE-T/100BASE-TX autosensing Ethernet/Fast Ethernet

(full and half duplex) equipped with an RJ-45 receptacle.

• Modular port adapter slot—Supports a single-width port adapter, including the

Ethernet/FastEthernet, Serial, high-speed serial interface (HSSI), and ATM interfaces.

• One console port—Equipped with an RJ-45 receptacle.

• One auxiliary port—Equipped with an RJ-45 receptacle.

• Two PCMCIA card slots—Flash disk or flash memory cards contain the default Cisco IOS software

image and can act as backup devices for CMTS and cable modem configuration files.

• LEDs—LEDs for system ready, power, PCMCIA card slots, for the fixed LAN and cable ports, and

for the modular port adapter interfaces.

• Up to 256 MB of synchronous dynamic random-access memory (SDRAM) system memory with

64 MB of fixed SDRAM packet memory—Three dual in-line memory modules (DIMMs) on the network processor board.

• 2 rack-unit (2RU) chassis (front or rear rack-mountable)

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• Single AC power supply, with the option of different power cords, depending on the country of

operation.

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Chapter 1 Product Overview

Cisco uBR7100 Series Routers Physical Description

All interface connections and LEDs are located at the back of the router. Figure 1-1 shows the rear panel of the Cisco uBR7111 and Cisco uBR7111E routers. Figure 1-2 shows the rear panel of the Cisco uBR7114 and Cisco uBR7114E routers.

Figure 1-1 Cisco uBR7111 and Cisco uBR7111E Universal Broadband Router—Rear Panel View

SLO

T 0

DS0

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0/1

T 1

A C

L N

AUX

US0

uBR7114

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1 ESD receptacle 5 Ground receptacles 9 DS0

2 Modular port adapter 6 Power supply 10 Module slot (not used)

3 Fixed Fast Ethernet LAN ports 7 Console and auxiliary ports 11 DS0 RF

4 PCMCIA card slots (covered) 8 US0

Figure 1-2 Cisco uBR7114 and Cisco uBR7114E Universal Broadband Router—Rear Panel View

DS0

US3

ACT

LNK

FE 0/0

FE 0/1

US2

PWR

US1

PWR

SYS RDY

CONS AUX

US0

uBR7114

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1 ESD receptacle 6 Power supply 11 US3

2 Modular port adapter 7 Console and auxiliary ports 12 DS0

3 Fixed Fast Ethernet LAN ports 8 US0 13 Module slot (not used)

4 PCMCIA card slots (covered) 9 US1 14 DS0 RF

5 Ground receptacle 10 US2

Note The grounding receptacles are shown in Figure 1-1 and Figure 1-2 are for the chassis grounding that is

required by the Telcordia specifications for central office use. Power supply grounding is provided by the three-pronged grounded AC power supply outlet.

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Chapter 1 Product Overview

Figure 1-3 shows the front panel for all models of the Cisco uBR7100 series routers.

Figure 1-3 Cisco uBR7100 Series Front Panel

Cisco uBR7100 Series Routers Physical Description

Cisco uBR7100

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All Cisco uBR7100 series routers have one power supply with one AC-input power receptacle. A power cable connects the AC-input power supply to the site AC power source. The router’s main power switch is located next to the AC-input power receptacle. Separate power cords are available, depending on the country of operation.

On the side of each chassis are two chassis ground receptacles—choose the most convenient set for a chassis ground connection for a two-hole grounding lug, and the other set can provide a mounting location for the cable management bracket. On the back of the chassis, there is a receptacle for electrostatic discharge (ESD) equipment.

Four internal fans draw cooling air into the chassis (back to front) and across internal components to maintain an acceptable operating temperature. There are four environmental sensors for monitoring the cooling air as it leaves the chassis. For more information on environmental monitoring, see the

“Environmental Monitoring and Reporting Functions” section on page 6-2.

Caution To ensure the proper flow of cooling air across the internal components, a port adapter must be installed

in the port adapter slot. If no port adapter is installed, install a blank port adapter (the product number is MAS-7100-PABLANK=). Slot 5 has a blank face plate. For proper airflow, make sure that a blank faceplate is always installed in slot 5. (The product number is SM-BLANK=).

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The modular port adapter slides into the chassis slot and connects directly to the router; there are no internal cables to connect.

The port adapter, fixed cable interface, and fixed LAN interface connect to two peripheral component interconnect (PCI) buses on the router’s backplane that provide a path to packet I/O memory and the system processor. For more information, see the “Peripheral Component Interconnect Buses” section on

page 1-14.

Cisco uBR7100 series routers can be installed on a tabletop or in an equipment rack. Rubber feet for tabletop installation are included in the accessory kit that shipped with your router.

A rack-mount and cable-management kit is also standard equipment included with all Cisco uBR7100 series routers when they are shipped from the factory. The kit provides the hardware needed to mount the router in a standard 19-inch, four-post or telco-type equipment rack. The rack-mount kit also provides the hardware necessary to manage the interface cables attached to the router.

Note Hardware to install the Cisco uBR7100 series in a 23-inch or 24-inch rack can also be ordered separately

(the order number is ACS-7100-RMK=).

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Fixed Interface Units

Instructions for installing the router on a tabletop, installing the router in an equipment rack, and attaching the cable-management bracket are given in Chapter 3, “Installing Cisco uBR7100 Series

Universal Broadband Routers.”

Fixed Interface Units

The Cisco uBR7100 series universal broadband router contains the following fixed interfaces:

• Ethernet/Fast Ethernet LAN Interface, page 1-6

• RF Cable Interface, page 1-6

Ethernet/Fast Ethernet LAN Interface

The Cisco uBR7100 series contains a fixed LAN Ethernet/Fast Ethernet autosensing interface with two separately routable 100BASE-TX ports. Both ports support full-duplex and half-duplex operation, and automatically determine whether the attached network is a 10-Mbps 10BASE-T Ethernet or a 100-Mbps, 100BASE-TX Fast Ethernet network. Each port uses an RJ-45 connector with Category 5 unshielded twisted-pair (UTP) wiring.

Chapter 1 Product Overview

RF Cable Interface

The Cisco uBR7100 series router includes a fixed cable interface card that provides one downstream port and from one to four upstream ports, depending on the model.

On the Cisco uBR7111 and Cisco uBR7114 routers, the cable interface supports the North American DOCSIS channel plan, with a 6 MHz National Television Systems Committee (NTSC) channel width, with a 5 to 42 MHz upstream frequency range. The downstream supports the 54 to 858 MHz frequency range with 64 QAM and 256 QAM data rates, while the upstream supports QPSK and 16 QAM data rates.

On the Cisco uBR7111E and Cisco uBR7114E routers, the cable interface supports the EuroDOCSIS channel plan, with an 8 MHz pulse amplitude modulation (PAM) and SECAM channel width, with a 5 to 65 MHz upstream frequency range. The downstream supports the 54 to 858 MHz frequency range with 64 QAM and 256 QAM data rates, while the upstream supports QPSK and 16 QAM data rates.

Two downstream connectors are provided:

• DS0 RF—Outputs the downstream after it has been processed by the router’s integrated upconverter,

thereby creating an RF signal suitable for connection to a combiner and transmission on the coaxial cable network.

• DS0—Outputs the downstream as an IF signal, requiring an external upconverter to process the

signal for output on the coaxial cable network.

Note On the Cisco uBR7111E and Cisco uBR7114E routers, the DS0 connector is automatically muted when

the DS0 RF port is enabled.

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