Simple question:-
Can a small number of low-cost consumer DOCSIS modems share with CATV signals without a full CMTS?
Best regards, Spehro Pefhany
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I'm not sure I understand your question..
No DOCSIS modems cannot talk to each other...
they can talk only to a CMTS...
Mark
Nope, sorry. The CMTS is the gatekeeper for the system / master to the slaves (except in LA County where this is politically unacceptable and so they are "primary" and "secondary" :-). It answers the discovery protocol, sets the frequencies, encoding, enrolling & polling the downstreams, etc.
IIRC, the systems TX and RX in completely different frequency ranges, so the CMs may not be capable of RX in their range of TX frequencies (& vice versa). So I don't think you could even hack the firmware to make this work.
Cheers, Richard
No. But I've seen a small CMTS offered for building level installation, for up to 64 modems or so.
Don't know the company name; they do TV headend stuff, but were not one of the big names I recognize.
Up and downlink on cable models are very different - even more than on ADSL.
Thomas
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