Specifications

2 Release Notes for Cisco uBR904 Cable Access Router for Cisco IOS Release 12.0(7)T
Introduction
Introduction
The Cisco uBR904 cable access router gives residential or small office/home office (SOHO)
subscribers, high-speed Internet or Intranet access via a shared two-way cable system and IP
backbone network. The router connects computers and other customer premises devices at a
subscriber site to the service provider’s hybrid/fiber coax (HFC) and IP backbone network.
The Cisco uBR904 cable access router interoperates with any bidirectional, DOCSIS-qualified
Cable Modem Termination System (CMTS). The Cisco uBR904 cable access router ships from the
Cisco factory with a Cisco IOS software image stored in nonvolatile memory (NVRAM) that
supports DOCSIS-compliant bridging data operations. The Cisco uBR904 cable access router
functions as a cable modem–a modulator/demodulator at a subscriber site to convey data
communications on the cable television system.
Based on the feature licenses your company purchased, you can download other Cisco IOS images
from CCO. You can configure each Cisco uBR904 cable access router in your network to support
special operating modes based on your cable plant’s service offering and the practices in place for
your network. The Cisco uBR904 cable access router can function as an advanced router, providing
wide area network (WAN) data connectivity in a variety of configurations.
System Requirements
This section describes the system requirements for Release 12.0 T:
• Memory Requirements, page 2
• Headend Interoperability, page 3
• Hardware Supported, page 3
• Determining the Software Version, page 4
• Upgrading to a New Software Release, page 4
• Feature Set Tables, page 4
Memory Requirements
Table 1 Memory Requirements for the Cisco uBR904 Cable Access Router
Feature Set Matrix Term Image Name
Required
Flash
Memory
Required
DRAM
Memory
Runs
From
Feature
Status
IP Routing Standard Feature Sets
12.0(7)T
Home Office ubr900-k1y5-mz 4 MB Flash 8 MB DRAM RAM Added in
Release 12.0(7)T
Telecommuter/IPSec 56 ubr900-k1y556i-mz 4 MB Flash 8 MB DRAM RAM Encryption image
added in
Release 12.0(7)T
Small Office/FW ubr900-k1oy5-mz 4 MB Flash 8 MB DRAM RAM Added in
Release 12.0(7)T
Small Office+/FW/IPSec 56 ubr900-k1oy556i-mz 4 MB Flash 8 MB DRAM RAM Added in
Release 12.0(7)T