80/20 product speed at 600m from Cabinet?

After a long initial wait followed by 2 aborted FTTC cabinet installation attempts late last year, my FTTC cabinet has just started taking orders. Infinity 2 is being installed here on Wednesday morning.

The BTW estimate for my line is 49.9Mb down and 10.9Mb up. We are around 600m from the cabinet although I don't know the exact cable route.

We are a long way from the exchange and get a sync of only 1.4Mb on ADSL2+ so this has been a long time coming.

I have seen varying speeds quoted for the 40/10 product from around 25Mb to as high as 37Mb but could anyone who is around 600m from their cabinet with the 80/20 product please share their speeds? I know I only have to wait until Wednesday but thought I would ask anyway

In reply to a post by zag164:

After a long initial wait followed by 2 aborted FTTC cabinet installation attempts late last year, my FTTC cabinet has just started taking orders. Infinity 2 is being installed here on Wednesday morning.

The BTW estimate for my line is 49.9Mb down and 10.9Mb up. We are around 600m from the cabinet although I don't know the exact cable route.

We are a long way from the exchange and get a sync of only 1.4Mb on ADSL2+ so this has been a long time coming.

I have seen varying speeds quoted for the 40/10 product from around 25Mb to as high as 37Mb but could anyone who is around 600m from their cabinet with the 80/20 product please share their speeds? I know I only have to wait until Wednesday but thought I would ask anyway

Im not with BT im with littlebigone.com on digital region network (South Yorkshire only) but its the same tech as openreach use, Im apparently exactly 588M from the cab cable wise (380m road wise) they did a test to find that out, My current sync speed is 70000/24128 kbps im on LBO super fast product which is basically anything your line can handle (like bt's 80/20 but unlocked so if your like 50m from cab you can get 100+) so if you're 600M id expect at least 60Mb minimum i cant see 12M of cable knocking more than 10meg off you

hope this is some help

speedtest here

Ash

EDIT after looking at other peoples reply's im starting to think DRN use slightly diff tech to OR to enabled faster speeds on longer lines

Or the measurement of 588M for my line is very wrong based on the quote below Proof of Sync

In reply to a post by MHC:

I am around 450 to 500m from my cabinet and the modem gives a figure of 63Mbps ...

Edited by acpsd775 (Sat 02-Jun-12 23:13:04)

I am around 450 to 500m from my cabinet and the modem gives a figure of 63Mbps ...

So, moving a little further way suggests that the BT estimate could be about right - but it will depend on noise, including cross talk, cable quality, joints cable size &c. You may also find that it syncs quite high to start but gradually drops back a little and that will be as others are installed and the crosstalk noise increase.

If you get 60Mbps - I will be very surprised and even 55Mbps will be a good result.

im about 750m metre from cabinet, speed below

I'm approximately 600m cable length from the cabinet according to the engineer's JDSU tester, and that agrees with the road measurement. (A clear obvious route).

Our test also indicates that your line currently supports a fibre technology with an estimated WBC FTTC Broadband where consumers have received downstream line speed of 51.7Mbps and upstream line speed of 13.2Mbps.

My unlocked router on a 40Mbps connection shows

Max: Upstream rate = 14345 Kbps, Downstream rate = 57988 Kbps

but I connected about this time of day. IIRC it shows around 59Mbps downstream on a daytime connection.

Ash -- For security, it might be a good idea to obfuscate your IP address, as it is currently visible in the image.

oh yea ill change that lol im getting a new ip Wednesday anyway haha

Ash

A lot could happen between now and Wednesday . . .

I'm glad to see you're finally connected to a FTTC service.

yes true ive blanked it out now been about 1.5 months now very happy with the service

Ash

Thanks to Ash, MHC, Ripley and RobertoS for your updates. It sounds like I should expect roughly what BT have estimated and to avoid crosstalk I shouldn't be telling my neighbours that FTTC is now available . I'll post my speeds here after the installation on Wednesday.

50Mb/s is definitely possible. I sync at 40/10, 750m from the cab.

Thanks for the info. Unless the underground cabling takes a very diverse route I should get at least 40/10 then. 2 days to go... like a child waiting for Christmas!

I know the feeling. I went from 2Mb/s to 40Mb/s. Good luck!

Let us know how things turn out.

600 meters from cabinet

Is this what you meant?

In reply to a post by Anonymous:

600 meters from cabinet

Is this what you meant?

What has that got to do with anything?

FAIL.

I was very disappointed by it. I thought the Anon had manufactured a pic of a cabinet with a line of 600 gas or electricity meters leading from it .

Well the Openreach engineer turned up this morning. He confirmed I am the first installation on the new cabinet. I wasn't able to get a cable length measurement to the cabinet from him but took a snap of his testing equipment at an opportune moment which reported these stats:

http://tinypic.com/view.php?pic=crcw3&s=6

Shortly after he left speedtest.net was reporting 45 down and 7.2 Up ( http://speedtest.net/result/1993782106.png ), higher than his test but possibly not so accurate. That's a bit slower than my 49.9/10.9 estimate but a huge improvement for me so I am happy.

One issue though - I have the ECI modem and it seems to have a loose connection inside. If the LAN cable gets wobbled the LAN light goes off and sometimes also the DSL light. This has happened a few times today whilst I was arranging the spaghetti under the desk. Looks like I will have to get this swapped out but I am more concerned if this causes the DSLAM to think I have a poor connection and drop the sync speed down when it reconnects. This evening my speed tests are around 35Mb ( http://speedtest.net/result/1994148230.png ). Is this likely to be the case and if so, if I leave well alone now will the sync speed go back up?

It's frustrating not to be able to see the actual sync speeds on the modem - am now thinking about buying a different VSDL modem - any suggestions please?

Use the BT Speed test when you want some idea of your connection speed. As well as down and up speeds it shows the IP Profile, which is just under the connection speed. (I forget the exact percentage).

In reply to a post by RobertoS:

(I forget the exact percentage).

96.79!

Thanks.

Know any decent tattooists?

Get the modem swapped out by Openreach (through your ISP), with any luck you'll get a Huawei HG612 model 3B. This can be hacked so you can see the stats and even use it as a modem/router. They're also available on Ebay sometimes.

They match modems to the hardware in the cabinet, so will be another ECI unit

My best estimate of our line length to the cabinet is approximately 600metres

We get about 25Mbit down and 5Mbit up or thereabouts.

I think you're further away or have a bad line somewhere as that's very low for 600m.

At 600m on a 17a profile you'd look to get between 50-60 down.

In reply to a post by orly:

My best estimate of our line length to the cabinet is approximately 600metres

We get about 25Mbit down and 5Mbit up or thereabouts.

Even mine, with a looooong history of problems is faster than that.

Slightly less than 1000m from the cabinet - measured with a surveyor's trundle wheel (maybe as low as 900m, depending where the cable crosses the main road).

I am currently in sync at 28.6Mb / 4.8Mb with 34Mb /5Mb Attainable at 7pm.

I have quite recently synced at 35.3Mb / 6.4Mb (until yet another (now fixed) physical issue caused problems).

In reply to a post by MrSaffron:

They match modems to the hardware in the cabinet, so will be another ECI unit

The didnt match mine, I asked the question at the time of install and the Openreach guy said at my local exchange [emrpley] the only modems they have in stock are the Huwaei units, but every street cabinet is an ECI cabinet!

The Openreach chap said he had not been informed of any need to match modems as part of his training.

With the history of this line over 20 years, its a miracle it carries voice let alone 25Mbit of data

Thanks again for the feedback.

The download seems to have settled to about 44Mb now but the upload is around 6.5Mb. When the upload increases the download seems to drop by the same amount.

Now don't get me wrong I am certainly happy with these speeds but I'm trying to understand the speed ratio as at these sorts of speeds a couple of Mb extra on the upload is more beneficial to me than on the download speed.

Given the 80/20 product I was expecting the upload to be around 25% of the download. In my case it is below 15%. Looking at the speeds posted here there is certainly quite a variation. Can anyone give an insight into why this may be please?

Given the 80/20 product I was expecting the upload to be around 25% of the download. In my case it is below 15%.

An easy mistake . It doesn't work like that.

All the 80/20 means is that those are the maximum speeds possible on the product in each direction in ideal circumstances. A number of frequency bands are allocated in each direction and it depends how well each frequency is or isn't used. There's no direct link between what you get in each direction.

The speed it actually connects at depends on many factors just like ADSLx did. Distance from the cabinet; condition of the wiring from the cabinet up to your modem; the "noise" on those lines at each frequency; and so on. For example, if your house happened to be next to a power substation with the wire coming over that from a pole, then you would probably get far lower speeds than someone the other side of the road off the same pole.

Edited by RobertoS (Fri 08-Jun-12 09:17:56)

Thanks for the clarification RobertoS. We had a broken line here a couple of years back and wiring from a "spare" cable that had been put in by BT for the previous owners for an old ISDN2e circuit was used which went to the back of the house. That was then routed back to the front of the house by OR in a big loop. It saved digging up the drive but unfortunately that added about 70m of cabling and a few joins which I am sure has not helped. Looking back I wish they had dug the drive up

My neighbour is having FTTC installed next week so be interesting to see what speed he gets.

Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 15765 Kbps, Downstream rate = 47424 Kbps
Path: 0, Upstream rate = 15587 Kbps, Downstream rate = 50125 Kbps

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
Medley Phase (Final) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 15765 kbps 47424 kbps
Actual Aggregate Tx Power: 6.8 dBm 11.9 dBm
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 2.8 35.2 53.6 N/A 16.5 44.7 66.2

Signal Attenuation(dB): 2.7 35.1 53.3 N/A 16.5 44.7 N/A

SNR Margin(dB): 6.1 6.1 6.3 N/A 4.6 4.6 N/A

TX Power(dBm): -4.4 -7.1 6.3 N/A 10.0 7.4 N/A

# xdslcmd info --show
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 15771 Kbps, Downstream rate = 47424 Kbps
Path: 0, Upstream rate = 15587 Kbps, Downstream rate = 50125 Kbps

Link Power State: L0
Mode: VDSL2 Annex B
VDSL2 Profile: Profile 17a
TPS-TC: PTM Mode
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 4.6 6.2
Attn(dB): 0.0 0.0
Pwr(dBm): 11.9 6.8