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Cable modem/CMTS

Casa's CMTS Gets Dense

4:00 PM -- Casa Systems Inc. , a cable modem termination system (CMTS) startup that just got a fresh batch of funding, is pouring some of that newfound cash back into its product portfolio. (See Summit Partners Pours $96M Into Casa Systems and Casa Systems May Go It Alone .)

Casa, still the only CMTS vendor to obtain "full" Docsis 3.0 qualification from CableLabs , has booted up a third-gen product, dubbed the C10G. The 12-rack unit chassis features 64-channel upstream and 64-channel downstream modules, which, at full, symmetrical capacity, would pack in 384 downstream and 384 upstream ports. However, operators can decide how to mix up those modules.

The density of this product supports traditional VoIP and high-speed data cable services, but puts a big target on Docsis-fed IPTV services as well.

According to Casa, the box can bond up to 16 downstream and 16 upstream channels. In North American Docsis mode, that would allow for downstream bursts in the neighborhood of 640 Mbit/s, with 800 Mbit/s on tap for EuroDocsis and its 8Mhz-wide channels. However, most current-generation D3 modems can only bond up to eight channels. Still, Docsis chipmakers are already prototyping versions that bond 16 downstream channels. (See Broadcom Dips Two Chips in 800M 'Prototype' .)

Time will tell if Casa's latest and greatest CMTS will put a dent in the market share of sector leaders Cisco Systems Inc. (Nasdaq: CSCO), Arris Group Inc. (Nasdaq: ARRS), and Motorola Inc. (NYSE: MOT).

However, Casa, which has gotten acquisition glances from Huawei Technologies Co. Ltd. and Juniper Networks Inc. (NYSE: JNPR), among others, has made some progress outside the US with UPC Broadband and Ziggo B.V. , and with Guangzhou Digital Media Group of China. (See Cisco, Harmonic Rule Cable Access in Q2 , Cisco Packs On Wideband Muscle , and Open House at Casa Systems?)

We've asked Casa when it intends to submit the new product for qualification testing, if any MSOs are testing or deploying it yet, or if it this product has eyes for the super-dense, Comcast Corp. (Nasdaq: CMCSA, CMCSK)-led Converged Multiservice Access Platform (CMAP). (See Comcast Proposes Its God Box , Comcast God Box Also a Green Box, and More MSOs Back Comcast's Big Box Project .)

We'll update when we have some answers, or if we get a chance to pop by and see the new wares at the company's private suite at this week's Society of Cable Telecommunications Engineers (SCTE) Cable-Tec Expo in New Orleans.

— Jeff Baumgartner, Site Editor, Light Reading Cable

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