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DOCSIS

TI's Wideband Breakthrough

CableLabs Certification Wave 72 might be better classified as a Certification Ripple based on the dearth of devices that came away with Docsis 3.0 stamps, but the big takeaway is that cable's R&D house has blessed the first modem/gateway equipped with a new Texas Instruments Inc. (NYSE: TXN) chipset that supports downstream speeds of up to 320 Mbit/s.

All previous TI-based, Docsis 3.0-certified devices use chips that support the spec's minimum configuration of four bonded downstream and four bonded upstream channels. Before Wave 72, all 8x4 products approved by CableLabs had been based on Broadcom Corp. (Nasdaq: BRCM) chips.

SMC Networks Inc. confirmed via email today that its newly certified Docsis 3.0 gateway, the SMCD3GN2, is powered by TI and uses the 8x4 channel configuration. TI introduced the 8x4 iteration of the Puma 5 chip back in September 2008, offering a platform that can handle traditional high-speed Internet services, but also set aside up to four channels for the delivery of IP-based video services. (See TI Flexes Docsis 3.0 Muscle .)

A downstream with eight bonded 6MHz channels can produce theoretical bursts of 320 Mbit/s. In EuroDocsis environments, which use 8MHz-wide channels, that number shoots up to 400 Mbit/s.

In other Wave 72 Docsis 3.0 activity, Netgear Inc. (Nasdaq: NTGR) snared certification for a new embedded multimedia terminal adapter (E-MTA, or voice modem), and Technicolor (Euronext Paris: TCH; NYSE: TCH) (formerly Thomson) got the stamp for an IPTV-capable gateway.

Netgear's CVD31XB is a Broadcom-based voice modem with the 8x4 channel setup.

Technicolor's newly certified unit, the DWG875, also uses 8x4 channel and has 802.11n built in. The company confirmed that the DWG875 uses Broadcom's chip.

CableLabs Certification Wave 73 got underway in mid-January, with results expected in by mid-April.

With the Netgear, SMC, and Technicolor models now in the mix as CableLabs-certified, here's an updated list of what's been approved so far for Docsis 3.0:

Table 1: Docsis 3.0-Certified Modems, E-MTAs, and Gateways
Vendor Product Silicon partner Cert wave approved
Arris Touchstone 702G (E-MTA) TI 58, 59*, 63**, 67****
Arris WBM750A TI 59, 63**, 67****
CastleNet CBC381 Broadcom 71
Cisco DPC3000 TI 58, 63**, 65***
Cisco DPQ3202 TI 60, 63**
Cisco DPC3010 Broadcom 65
Cisco DPQ3212 N/A 70
D-Link DCM-301 N/A 70
Hitron BRG-35503 TI 61, 63**
Juniper ECM3100-JU N/A 70
Motorola SB6120 TI 58, 63**, 67****
Motorola SBV6220 TI 58, 59*, 63**
Motorola SBV6120 TI 68
Motorola SB6180 Broadcom 70
Motorola SBG6580 N/A 71
Netgear CMD31T TI 60, 63**, 65***
Netgear CVD31XT TI 64
Netgear CG3000 Broadcom 70
Netgear CG3200D N/A 71
Netgear CMD31B Broadcom 71
Netgear CVD31XB Broadcom 72
Orient Telecom ORT3100 TI 64
SerComm FM301T TI 63
SMC SMCD3CM TI 58, 63**, 65***
SMC SMCD3G-BIZ TI 64, 67****
SMC SMCD3USG (E-MTA) N/A 71
SMC SMCD3GN2 (gateway) TI 72
Thomson/Technicolor DCM475 Broadcom 65
Thomson/Technicolor DHG575 Broadcom 65
Thomson/Technicolor DCW775 Broadcom 70
Thomson/Technicolor DWG875 Broadcom 72
Ubee Interactive U10C035 TI 58, 63**, 65***
Ubee Interactive DDW3600 TI 67
Ubee Interactive DDM3500 Broadcom 65
Ubee Interactive DVM3200 (E-MTA) Broadcom 65
Ubee Interactive DDW3610 Broadcom 70
Ubee Interactive DVW3200 (E-MTA) Broadcom 71
*Device re-certified for Docsis 3.0 and obtained initial PacketCable 1.5 certification in Wave 59.
**Device re-certified for Docsis 3.0 in Wave 63.
***Device re-certified for Docsis 3.0 in Wave 65.
****Device re-certified for Docsis 3.0 in Wave 67.
Source: CableLabs, the companies, and Cable Digital News research.




Table 2: Docsis 3.0-Qualified Cable Modem Termination Systems (CMTSs)
Vendor Product Wave qualified Highest level of 3.0 qualification achieved*
Arris C4 CMTS 56 Bronze
Casa Systems C2200 CMTS** 58 Full
Casa Systems C3200 CMTS 58 Full
Casa Systems C10200 64 Full
Cisco uBR10012 56 Bronze
Motorola BSR64000 58 Bronze
* CableLabs currently uses a tiered CMTS qualification system, awarding "Bronze," "Silver," and "Full" designations based on the product's supported features.
** Casa's C2200 CMTS won Silver qualification in Wave 56.
Source: The companies, CableLabs, and Cable Digital News research.




— Jeff Baumgartner, Site Editor, Cable Digital News

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