Kitz Forum
Broadband Related => FTTC and FTTP Issues => Topic started by: burakkucat on October 23, 2012, 01:26:43 AM
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b*cat was busy perusing some Openreach videos (thanks for the link, Walter), when he realised that a few "screen-scrapes" might be interesting to fellow Kitizens.
So, attached below, are images of the three types of DSLAMs currently deployed by Openreach.
The Mini ECI DSLAM interests me. Does anyone know its version or type number, please?
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Thanks b*cat.
The dslam looks like the MiniCAB 64V
ECI’s MiniCAB 64V is a compact, self-contained IP-DSLAM designed for outdoor use where street cabinet space and power are at a premium. Its impenetrable housing means that you can install the MiniCAB anywhere – including on existing passive xDSL street cabinets, poles, walls or even manholes. The MiniCAB 64V is part of ECI’s 1Net framework for addressing your strategic and day-to-day challenges.
http://www.ecitele.com/OurOffering/Products/Pages/MiniCab-64V.aspx
http://www.ecitele.com/OurOffering/Products/ProductsAssets/hi-focus-minicab64v-product-note.pdf
I havent been able to identify the aggregation switch attached to the backplane.
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Added, as an aside. It would appear Italy has been using the ECI minicabs for several years... only the ADSL2+ version (MiniCAB 64A).
Theres a photo someone posted on this forum by giustaf82
http://www.hwupgrade.it/forum/showthread.php?t=2339662&page=21&highlight=1vc4
(https://forum.kitz.co.uk/proxy.php?request=http%3A%2F%2Fwww.pctunerup.com%2Fup%2Fresults%2F_201104%2F20110404103723_02zh2.jpg&hash=9df23a524d61875900666459bc03b4855aa764ee)
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Gentlefolk,
I too listend to the super-energetic commentary, complete with a number of half truths !
As we can easily have a 24 hour power cut out in the sticks the suggested 6 hours won't go far.
I watched a commissioning engineer the other day on a new open ECI 128 showing 5 Amps @ 50 volts probably without the fans running so I'd guess they might need a Kw in the heat of summer.
I'd also question the usefulness of such a device for a small rural cluster as you'd have to duct in new fibre and power, down a very small tube.
OTOH if they have left the PSU and battery out of the picture, just providing a 50 Volt supply would be a possibility - IF you can afford to replace un-ducted twisted pairs with ducted fibre.
I wonder whether the accountants have caught up with their new FTTC energy bills yet - how many are installed now ?
Kind regards,
Walter
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Ive not seen the video, so cant comment. Would someone like to send me a linky please :)
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Many thanks for your links, Kitz. I shall scrutinise them after I have consumed my evening meal . . . :yum:
Here is the link (http://www.youtube.com/watch?feature=player_detailpage&v=53NcsctuxV0#t=159s) to the Openreach video, which Walter discovered.
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I've trawled our NGA knowledge fonts, and I can't see this little baby mentioned anywhere. I think Walter is right in his assumptions of its usefulness in the real-world, regardless of Italy's indulgence for it. ;D
The ones 'we' use are .........
ECI 128, ECI 256 (in the near future, the 256 will be fit as standard)
Huawei 96, Huawei 128 and Huawei 288.
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I've trawled our NGA knowledge fonts, . . .
May I humbly suggest adding a "u": fonts => founts :P
If you should happen across an "unloved" ECI MiniCAB 64V somewhere within Beatie's bowels, BS, please send it to The Cattery, off DP1032 EABSE.
I could make use of one of them, for experimental purposes. ::)
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Thanks for the linky... good find walter :)
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I've trawled our NGA knowledge fonts, . . .
May I humbly suggest adding a "u": fonts => founts :P
If you should happen across an "unloved" ECI MiniCAB 64V somewhere within Beatie's bowels, BS, please send it to The Cattery, off DP1032 EABSE.
I could make use of one of them, for experimental purposes. ::)
You may B*Cat ....... but I can 100% assure you, in our official documentation we refer to them as 'Fonts'. So you now have a spare "U" for tomorrows 'Countdown'. ;) :P ;D
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I must admit Ive always used font but I think both are equally accepted :)
Definition of FONT
1
a : a receptacle for baptismal water
b : a receptacle for holy water
c : a receptacle for various liquids
2
: source, fountain <a font of information>
— font·al adjective
Origin of FONT
Middle English, from Old English, from Late Latin font-, fons, from Latin, fountain
First Known Use: before 12th century
http://www.merriam-webster.com/dictionary/font
fount
noun \ˈfau̇nt\
Definition of FOUNT
: fountain, source
Origin of FOUNT
Middle English, from Anglo-French funte, founte, from Latin font-, fons
First Known Use: 15th century
Rhymes with FOUNT
count, mount
2fount
noun \ˈfänt, ˈfau̇nt\
Definition of FOUNT
British
: a type font
Origin of FOUNT
French fonte, from Middle French — more at font
First Known Use: circa 1683
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If you should happen across an "unloved" ECI MiniCAB 64V somewhere within Beatie's bowels,
I think I saw an ECI MiniCAB on ebay earlier - but it wasnt a 64v :lol:
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I think I saw an ECI MiniCAB on ebay earlier - but it wasnt a 64v :lol:
That would not surprise me. But why did I miss finding it? :(
@BS & Kitz -- I shall take back my "u" and save it for a later bend or turn. :-X
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Found it (http://www.ebay.co.uk/itm/250943978755) . . . an ECI MiniCAB 48A. :)
But £248.85 plus £49.89 ? :no:
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I wonder whether the accountants have caught up with their new FTTC energy bills yet - how many are installed now ?
Kind regards,
Walter
Wow, that's going to be a lot of fans for OR to keep in check and I'm sure the bean counters will be on the case (or cabinets). I suppose the temperature can be monitored remotely in case of fan failure?
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@ smucat,
I watched a FTTC commissioning engineer the other day testing the door alarms without the telemetry cable in place.
I therefore deduce that the alarms can be retrieved either via the DSLAM interface or via the POTS telemetry system.
RE power consumption I saw yesterday the some proud announcements were being made about installing 30,000 FTTCs by 2014.
Let's guess they have an average of half a Kw. Unless I'm wildly out that suggests only an additional 15 Megawatts p.a. on the behemoth's energy bill.
Something about "One of the worst mistakes humanity has made**" comes to mind !!!
** Peter Cochrane
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@ waltergmw
It would make sense to collect data via the fibre link and I assume the telemetry pair simply picks up a line from the nearby PCP?
Re: Power. Right so 0.5kW x 24 hours is 12 kWh (units) per day for one cab. Times 365 days is 4380 units per annum. Times 30k cabs is 131400000 units per annum! I don't know what discounts they get, but say 5p per unit makes the total bill £6.57M per annum.
I see Peter recommends going for FTTH and perhaps not bother with FTTC (!) - that would certainly eliminate probs due to poor quality copper cables.
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Thanks to B*Cat for adding 'Harelquin Group' to my list of contractors which include:
Carillion/Telent, Morrison Utility Services, M.J. Quinn, UK Power Networks, and Twinline Utilities.
I'm sure there must be quite a few more....?
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@ smucat,
Options is another contractor used around here.
You are correct that a 5 pr "telemetry cable" with only one pair connected is often added to the link duct AFTER they have been sealed and by a new team of subcontractors some time later.
I assume the pair is connected to a standard POTS dial-up telemetry unit in the FTTC. I don't know if they have dared to go so far, but being able to power-recycle the DSLAM could be a useful instant remedy.
Kind regards,
Walter
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@ waltergmw
I understood the telemetry line to be for remote meter readings of the electricity use.
Oh, 'power-recycle' - you mean to 'switch it off and on again' - you'd have to ring the helpdesk for that procedure! :D
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@ smucat,
I've yet to see any connection to a meter, but for obvious reasons, only the circuit breaker is visible without dismantling the left hand side of the cabinet.
If you look at an ECI cabinet diagram on the door you will see items such as door alarms and cabinet temperature etc. so I had assumed (but can't confirm) it was those items being transmitted via the telemetry link.
Certainly the door alarms are available in a control room as BT advertise that fact.
Kind regards,
Walter