CastleNet's modem with on-board IPTV capabilities is one of six Docsis 3.0 products to get stamps from CableLabs in Cert Wave 71

Jeff Baumgartner, Senior Editor

December 14, 2009

8 Min Read
CastleNet Tunes In to IPTV

Taiwan's CastleNet Technology Inc. has joined the Docsis 3.0 modem club with a product that can turn traditional QAM video streams to IP.

CastleNet's CBC381 model for Docsis 3.0 is just one of the products approved by CableLabs during Certification Wave 71, according to data from the Louisville, Colo.-based cable R&D house.

According to a CastleNet specification sheet, the model supports up to eight downstream channels (double the base level requirements of the spec) and four upstream channels. In a full configuration, the model supports downstream bursts up to 320 Mbit/s using 6MHz-wide channels, or up to 400 Mbit/s in EuroDocsis mode, which uses 8MHz-wide channels.

CastleNet was not immediately available for comment, but an industry source believes the device uses Broadcom Corp. (Nasdaq: BRCM) silicon.

Broadcom and Texas Instruments Inc. (NYSE: TXN) have both developed Docsis 3.0 silicon that enables cable modems to flexibly set aside tuners for managed video services, a technique some MSOs, including some in the U.S., are eager to use for IPTV. That same technique is expected to grace an upcoming line of next-gen transport gateways that can handle both QAM- and IP-based video services. (See Harmonic Goes Lite for Cable IPTV, Cable Curious About IPTV Possibilities , Iowa Cabler Gets Wired for IPTV, QAM-IP Boxes: Cable's Gateway to Video Heaven?, and TI Flexes Docsis 3.0 Muscle .)

With the CableLabs stamp, CastleNet becomes the 13th vendor to win Docsis 3.0 certification. However, it wasn't the only one to gain CableLabs's wideband blessing following certification wave 71. Here's a roundup of the other five products to get passing grades:

  • Motorola Inc. (NYSE: MOT) snared certification for the SBG6580, a wireless cable modem gateway powered by eight bonded downstreams and four bonded upstreams, and an 802.11n access point.

  • Netgear Inc. (Nasdaq: NTGR) came away with stamps for two more wideband products: the CG3200D and the CMD31B. The first in that group is a wireless cable modem gateway with 802.11n that boasts a 4-down/4-up channel bonding configuration. Jupiter Telecommunications Co. Ltd. (J:COM) of Japan was the first cable MSO to announce its deployment of the CG3200D, using it to support its 160 Mbit/s NET Ultra broadband service. (See Netgear's Big in Japan.)

    Netgear's CMD31B, meanwhile, is a standalone Docsis 3.0 with an 8x4 channel bonding configuration. The modem comes equipped with a mode to support EuroDocsis 3.0 network environments.

  • Ubee Interactive came away with certification for the DVW3200, a wireless embedded multimedia terminal adapter (E-MTA, or voice modem) with 802.11n, four GigE ports, USB support, and a battery backup. The DVW3200, based on Broadcom silicon, marks the second E-MTA from Ubee to obtain Docsis 3.0 certification. Its first, the DVM3200, was approved during Certification Wave 65.

  • SMC Networks Inc. also scored Docsis 3.0 certification for a voice modem called the SMCD3USG. Specs and additional details on that model were not immediately available.

    The final Certification Wave of 2009 got underway last month. Results from that process, number 72, are expected to be released on or around Feb. 2, 2010. Products for Certification Wave 73, the first for 2010, are due to CableLabs by January 14.

    Here's a rundown of modem and cable modem termination system (CMTS) gear to obtain Docsis 3.0 certification or qualification from CableLabs thus far:

    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

    N/A

    71

    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

    Thomson

    DCM475

    Broadcom

    65

    Thomson

    DHG575

    Broadcom

    65

    Thomson

    DCW775

    Broadcom

    70

    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

About the Author(s)

Jeff Baumgartner

Senior Editor, Light Reading

Jeff Baumgartner is a Senior Editor for Light Reading and is responsible for the day-to-day news coverage and analysis of the cable and video sectors. Follow him on X and LinkedIn.

Baumgartner also served as Site Editor for Light Reading Cable from 2007-2013. In between his two stints at Light Reading, he led tech coverage for Multichannel News and was a regular contributor to Broadcasting + Cable. Baumgartner was named to the 2018 class of the Cable TV Pioneers.

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