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PN-4407 (to be published as TIA/EIA TSB-110

In the aggregate, the Residential Gateway IDI shall provide adequate bandwidth for the following simultaneous service activities:

  • Four Set Top Boxes (STB), or the equivalent functionality, simultaneously channel surfing, with each STB/TV viewer surfing through a different set of video channels (i.e., different tiers of video broadcast, near video on demand, and/or pay-per-view services).

  • One user connected to an enterprise LAN from a PC with guaranteed bandwidth for typical work-at-home applications such as file transfer, conferencing, etc. This work-at-home functionality should include support for IP-based tunneling protocols.

  • One user browsing the Web from a PC utilizing a best-effort IP data capability.

  • One fully capable derived voiceband circuit, supporting enhanced narrowband capabilities,

including all CLASS features and ISDN-BRI.

  • One lifeline POTS circuit, powered from the local Central Office.

      • 5.1.1

        Lifeline POTS

For analog lifeline POTS service, a power failure pass-through function shall be incorporated into the RG.

5.1.2 System Reliability

For any service the unavailability caused by failures in the RG should not exceed 26 minutes per year on average. The MTBF of any service-specific, or network specific devices in the RG should be a minimum of 5 years.

5.1.3 Fault Monitoring

One of the primary potential advantages of an RG is its ability to serve as a single maintenance point for services. The RG can monitor its own functions for faults, and can isolate faults between those caused by the outside network and those caused by in-home networks and devices. By providing automatic fault monitoring, the availability and reliability of services provided through an RG can be significantly enhanced.

  • Where practical the Access Gateway Modules should provide a loopback functionality that can be remotely activated to enable the location of faults.

  • The RG should provide a "health check" function that reports any failures (including low battery charge) periodically. The reporting period may be as often as once or more a day. The system should be capable of remotely activating this capability.

  • The RG should provide a power source alarm which is activated in the event of a power outage.

  • The RG design should provide a means to notify of unauthorized access by activating remote alarms.

    • 5.2


      • 5.2.1


The enclosure shall house the internal digital interface and a minimum of 4 plug-in modules. The enclosure shall be listed by a Nationally Recognized Testing Laboratory (NRTL) and shall also


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