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Author Topic: Modem-to-wallsocket cables recap (again, groan)  (Read 13991 times)

banger

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #75 on: June 17, 2018, 02:52:11 AM »

The 1312 has wall mounting key holes on the underside. Fixing with sticky pads should work but not an ideal permanent solution but in your situation would have to suffice as I understand it.
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Tim
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Weaver

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #76 on: June 17, 2018, 02:59:27 AM »

I will ask Mrs Weaver what she prefers. She has a powerful electric screwdriver called Walter, and loves any excuse to use it. Walter saves her from all pain in her arthritic hands.

The only problem I foresee with the screw heads method is that of change in the future. If you change to different kit, then you might end up making a mess of the wall by having to make new screw holes in the plasterboard so it ends up a mess. I suppose one way around it would be to put up a mounting board and then screw screws into that, so that if spacings need to change then a fresh mounting board could be put up in place.
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banger

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #77 on: June 17, 2018, 03:09:56 AM »

LOL Walter. Mounting board sounds the way to go if Mrs Weaver feels comfortable with that.  ;)
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Tim
www.uno.net.uk & freenetname
Asus RT-ac58U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

https://www.thinkbroadband.com/speedtest/1502566996147131655

Weaver

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #78 on: June 17, 2018, 03:17:36 AM »

Mrs Weaver is giving me pain relief and making coffee, what a hero. She says she will go the velcro route.
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banger

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #79 on: June 17, 2018, 03:23:34 AM »

What a good nurse you have. I also have MH probs and a physical disability but am reasonably mobile. I dont have a nurse though so self medicate.

I hadn't thought of sticky velcro pads sounds like the best solution in the circumstances.
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Tim
www.uno.net.uk & freenetname
Asus RT-ac58U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

https://www.thinkbroadband.com/speedtest/1502566996147131655

Weaver

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #80 on: June 17, 2018, 03:33:36 AM »

I have CFS/ME and undiagnosed neuropathic pain for which I am taking a couple of neuro drugs and Fentanyl patches which have just gone up a lot in strength. More drugs for nausea, itching and dizziness to counter the other drugs.

Just now they have told me I had testicular cancer and then told me I havenít. I am anaemic for some reason. A new doctor is freaking out because my blood pressure is exceptionally high and he says that is the cause of some of the pain and feeling horrible.

This is more than a tad off-topic, belongs somewhere else, or even nowhere at all. But it might help some kitizens understand what I can do and what not and so explain my odd choices.
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Weaver

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #81 on: July 03, 2018, 09:15:00 PM »

Burakkucat has pointed out to me that all I need to get rid of the SSFP is the telephony-only front part of an NTE5c, instead of the one meant for DSL. So I have bought one from eBay. Cannot get just the front part so I had to buy the whole thing, but they cost nothing anyway.

That plus the right cable, of course - one that terminates in a BT431 plug.

And now no domestic dismay due to ugliness of a frontless NTE5.
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adslmax

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #82 on: February 02, 2020, 03:02:00 PM »

Tandy VDSL Cable 1m (twisted cable) (max speed 89Mbps / 25Mbps) (line attenuation 11.5dB)

VDSL Band Status    U0      U1      U2      U3      D1      D2      D3
  Line Attenuation(dB):  2.3    13.1    21.8     N/A     6.9    16.3    27.2   
Signal Attenuation(dB):  2.3    12.4    21.0     N/A     9.1    16.1    27.2   
        SNR Margin(dB): 15.7    15.3    15.2     N/A     7.4     7.6     7.4   
   Transmit Power(dBm):-14.0   -30.1     0.9     N/A     8.1     7.9     7.0

Tandy VDSL Cable 0.50m (twisted cable) (max speed 90Mbps / 26Mbps) (line attenuation 11.4dB)

VDSL Band Status    U0    U1    U2    U3    U4    D1    D2    D3
  Line Attenuation(dB):  2.5     13.0    20.0     N/A     N/A    6.8     15.5    25.8   
Signal Attenuation(dB):  2.5     12.1    19.0     N/A     N/A    8.8     15.4    25.7   
   SNR Margin(dB):    16.8    15.2    15.2     N/A     N/A    8.3    8.2    8.2   
     TX Power(dBm):   -15.1   -30.2   -0.7     N/A     N/A    8.1    7.9    7.0   

Shortern cable are best for VDSL at 0.50m but I haven't try 0.25m yet
 
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Alex Atkin UK

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #83 on: February 02, 2020, 08:18:12 PM »

Unless the longer cable was actually picking up interference, it will make zero real-world difference.

The results you've posted scream "margin of error" in the reporting to me.  I've seen bigger differences on my lines from a single resync and no wiring changes.
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Weaver

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #84 on: February 02, 2020, 09:57:57 PM »

> scream "margin of error" in the reporting to me.  I've seen bigger differences on my lines from a single resync and no wiring changes.

Fraid so. Thatís my experience too. Would have to repeat a lot of times.
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Alex Atkin UK

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #85 on: February 03, 2020, 01:46:00 AM »

> scream "margin of error" in the reporting to me.  I've seen bigger differences on my lines from a single resync and no wiring changes.

Fraid so. Thatís my experience too. Would have to repeat a lot of times.

By which point DLM would kick in, destroying your experiment.
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re0

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #86 on: February 03, 2020, 08:17:45 PM »

Tandy VDSL Cable 1m (twisted cable) (max speed 89Mbps / 25Mbps) (line attenuation 11.5dB)

...

Tandy VDSL Cable 0.50m (twisted cable) (max speed 90Mbps / 26Mbps) (line attenuation 11.4dB)

...

Shortern cable are best for VDSL at 0.50m but I haven't try 0.25m yet

Generic presumably ~2m (didn't measure) flat Cat. 5 RJ11:
Code: [Select]
Max:    Upstream rate = 64641 Kbps, Downstream rate = 369377 Kbps
Bearer: 0, Upstream rate = 50005 Kbps, Downstream rate = 329819 Kbps

Link Power State:       L0
Mode:                   G.fast Annex A
TPS-TC:                 PTM Mode(0x0)
Trellis:                U:ON /D:ON
Line Status:            No Defect
Training Status:        Showtime
                Down            Up
SNR (dB):        5.2             8.5
Attn(dB):        28.0            0.0
Pwr(dBm):        0.0             3.9

Belkin "Hi-Speed" F3L900CP1.8MWHS (1.8m) RJ11:
Code: [Select]
Max:    Upstream rate = 67483 Kbps, Downstream rate = 405028 Kbps
Bearer: 0, Upstream rate = 49965 Kbps, Downstream rate = 329867 Kbps

Link Power State:       L0
Mode:                   G.fast Annex A
TPS-TC:                 PTM Mode(0x0)
Trellis:                U:ON /D:ON
Line Status:            No Defect
Training Status:        Showtime
                Down            Up
SNR (dB):        8.1             8.9
Attn(dB):        29.4            0.0
Pwr(dBm):        0.0             4.1

Both using NTE5C.
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Weaver

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #87 on: February 03, 2020, 08:28:22 PM »

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Alex Atkin UK

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Re: Modem-to-wallsocket cables recap (again, groan)
« Reply #88 on: February 03, 2020, 11:35:12 PM »

Kitz Equipment Testing Procedure (KETP) :
    https://forum.kitz.co.uk/index.php/topic,15905.msg307641.html#msg307641

Does shielded cable REALLY make any difference, if its not grounded?

I know on ethernet its recommended to NOT use it unless both ends are earthed.  But then the main reason for STP is to block mains EFI where sending it to ground would obviously complete the circuit.
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