Cable Operator List

Colton Conor colton.conor at gmail.com
Tue Feb 9 20:20:07 UTC 2016


Scott,

Have any idea which exact vendors and model numbers are within this price
range? So far I have just found mini CMTS systems like the Pico and
Harmonic's. Both of these are a 16x4 configuration, but no mention of
remote MAC+PHY nor DOSIS 3.1. Then their is Huawei's solution, but still I
think that's more based on C-DOCSIS. Searching the vendors websites you
recommended show no results for remote MAC+PHY in a small format.

On Tue, Feb 2, 2016 at 2:44 PM, Scott Helms <khelms at zcorum.com> wrote:

> Colton,
>
> D3.1 gear is just coming online right now.  If you're going to go with the
> smaller PHY+MAC approach I'd just make sure the company has plans to update
> their boxes to 3.1 in a decent (your judgement) amount of time.  Don't
> expect any 3.0 box to be software upgradeable to 3.1, the hardware is quite
> different.  The PHY+MAC boxes are _generally_ < $10k and some are talking
> about ~6k.
>
> All the vendors we've listed so far have plans for 3.1, but I don't have a
> timeline for any of them.  Right now the market is still trying to decide
> how modular CMTS will be rolled out, remote PHY, remote MAC+PHY, or a
> combination.  For example, Cisco is (for the moment) betting that remote
> PHY economics will be compelling for the larger operators, while Arris is
> doing both approaches.
>
>
> Scott Helms
> Chief Technology Officer
> ZCorum
> (678) 507-5000
> --------------------------------
> http://twitter.com/kscotthelms
> --------------------------------
>
> On Tue, Feb 2, 2016 at 3:31 PM, Colton Conor <colton.conor at gmail.com>
> wrote:
>
>> Is a remote MAC+PHY the same thing as a Distributed Converged Cable
>> Access Platform (D-CCAP) solution like Huawei is pushing? Is DOCSIS 3.1
>> even out, or am I looking for something that does not exist yet?
>>
>> Are these remote MAC+PHY devices in the under 10K price range that these
>> smaller all in one CMTS platforms are?
>>
>> On Tue, Feb 2, 2016 at 12:49 PM, Scott Helms <khelms at zcorum.com> wrote:
>>
>>>
>>>
>>>
>>>
>>> On Tue, Feb 2, 2016 at 1:24 PM, Colton Conor <colton.conor at gmail.com>
>>> wrote:
>>>
>>>> Yes, we are in the USA. So based on everyones recommendations, I am
>>>> going to stay far away from EURODOCSIS. I was told be a vendor that
>>>> Arris and other USA FCC certified cable modems could easily be flashed to
>>>> EURODOCIS mode, so I did not think the CPE side was that big of a deal (is
>>>> that even true). I was not aware that there were so many differences
>>>> besides just the channel width.
>>>>
>>>
>>> I wish this were the case, it would make my life easier.  The problem is
>>> that there is a diplex filter that prevents the upstream burst from being
>>> heard by the downstream receiver and for cost purposes all the D3 and
>>> earlier modems have fixed filters.  What that means is that a EuroDOCSIS
>>> modem can (sometimes) be flashed to use 6MHz channels, but the reverse is
>>> NOT true.  In any case we don't recommend using Euro modems that are
>>> flashed to US standards in production (nor do the vendors) because you'll
>>> see much more upstream leakage.
>>>
>>>
>>>>
>>>> So, assuming we are talking about DOCSIS only (and not EURODOCSIS),
>>>> what do you recommend? I like the idea of being able to upgrade to 3.1, but
>>>> not sure if there are any small systems capable of this? By small I mean
>>>> something that could feed less than 100 units, and be economical to do.
>>>> Cable has the advantage of cheap modems, so it's really the CMTS side.
>>>>
>>>
>>> In that case I'd definitely go with a remote MAC+PHY.  That's the only
>>> way you're going to get a good price point and decent performance unless
>>> you want to use the secondary market, which actually isn't a bad idea right
>>> now.  A used 7225 with 8x8 blades is pretty cheap, but it's centralized
>>> CMTS that would cover ~3k subs.
>>>
>>>>
>>>> Please remember I am only interested in data internet services over
>>>> this plant. Something that works for garden style layouts where I can bring
>>>> fiber or coaxial to the side of a garden townhome that has between 4 to 16
>>>> units inside of it. The reason I requested a harden outdoor unit is that
>>>> most all of the garden style properties have both the phone
>>>> and coaxial drops on the outside of the building. There is no central
>>>> closet or room. Plus we are in the south, so hardened for the
>>>> heat exposure makes sense.
>>>>
>>>> A remote MAC-PHY (or pre remote MAC-PHY, ala mini CMTS) sounds like
>>>> what I want. I will check into Huawei and Gainspeed. Who else makes these?
>>>>
>>>
>>> In no particular order, Arris is or will be, Teleste (Euro vendor trying
>>> to break into the US),  Sumavision, Altera, and ton more I can't remember.
>>> Come to one of the SCTE shows (it's in Philadelphia this year) if you want
>>> to be deluged with them :)
>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Tue, Feb 2, 2016 at 11:24 AM, Scott Helms <khelms at zcorum.com> wrote:
>>>>
>>>>> Nick,
>>>>>
>>>>> Absolutely, if your plant is in Europe or one of the other areas (lots
>>>>> of Africa and the middle East is like that) that adopted EuroDOCSIS I'd
>>>>> agree wholeheartedly.  I didn't see Colton say where they're located, but
>>>>> all North America is the US flavor so that's what I assume on NANOG.
>>>>>
>>>>> That being said, the best thing that seldom gets mentioned about D3.1
>>>>> is getting us to unified channelization.
>>>>> Scott Helms wrote:
>>>>> > That very small upside for an extreme downside.Trying to hire someone
>>>>> > to work on your system with Euro channelization, not to mention
>>>>> buying
>>>>> > amplifiers and passives is a huge PITA.
>>>>>
>>>>> ... if your plant is in the US.
>>>>>
>>>>> > I have customers in Europe who
>>>>> > decided to do US DOCSIS and they universally wish they had used the
>>>>> > local "flavor".
>>>>>
>>>>> as you say, eurodocsis works well in europe.
>>>>>
>>>>> 3.1 will be a major improvement when it materialises.
>>>>>
>>>>> Nick
>>>>>
>>>>
>>>>
>>>
>>
>


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