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More DOCSIS 2.0 modems make the grade

Wed, 07/23/2003 - 8:00pm
Jeff Baumgartner

CableLabs certified four more modems for DOCSIS 2.0 following wave 26, extending that total to 22.

In the wave, CableLabs awarded 2.0 certification to two models from Terayon Communication Systems (the TJ715 cable modem, and the TA-102 multimedia terminal adapter), a reference design from Texas Instruments (the TNETC421A), and a model from Thomson (the DCM316/DCM316R).

Terayon remains the only vendor so far to have a cable modem termination system (CMTS) qualified for 2.0, an advanced spec that dilates cable's upstream by up to three-fold and mitigates noise. No one submitted a CMTS for 2.0 qualification in wave 26, which ended in mid-July.

On the 1.1 front, CableLabs certified 11 modems from Ambit, Belkin, Castlenet (two models), Cisco Systems, Linksys (two models), Motorola Broadband (2 models), SMC Networks and Toshiba, and qualified CMTSs from ADC and Arris.

Gaining 1.1 qualification was of particular significance for Arris, which secured approval for its Cadant C3 CMTS, a device based on a design from bankrupt vendor Com21 Inc. Arris on Wednesday announced it had struck a deal to acquire Com21's CMTS assets for $2.8 million.

CableLabs also awarded DOCSIS 1.0 certification to Scientific-Atlanta and Thomson models.

It's expected that CableLabs will release on Friday the results of its PacketCable and CableHome testing. Certification wave 26 marked the first to officially test media gateways and media gateway controllers against the PacketCable 1.0 spec. In the wave, Nuera Communications submitted its BTX-8 media gateway, and Siemens Carrier Networks supplied its SURPASS hiG media gateway.

Certification wave 27 is slated to kick off Sept. 2, with results released on or around Nov. 17.

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