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Author Topic: Sync speed difference between RJ11 cables.  (Read 4006 times)

banger

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Sync speed difference between RJ11 cables.
« on: August 12, 2017, 06:53:56 PM »

Just did a quick test between an old Billion 7800 RJ11 flat lead and a Tandy twister pair sheilded RJ11 cable.

The results

Max sync
72/17   Tandy
78/17   Billion

I have tried this before and got similar results.

My conclusion is the Billion cable is better and when I reconnected the Billion cable I gained 200k.

Make of that what you will.
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Tim
www.uno.net.uk & freenetname
Asus DSL-N55U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

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

NewtronStar

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Re: Sync speed difference between RJ11 cables.
« Reply #1 on: August 12, 2017, 09:05:40 PM »

Not again the problem with shielded cable it's not grounded the shielding in that cable acts like an Ariel picking up unwanted stuff from who knows where, the flat or twisted pair will do a good job as long as the cable is no longer than 2 meters
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banger

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Re: Sync speed difference between RJ11 cables.
« Reply #2 on: August 12, 2017, 09:10:51 PM »

Ah, that is why. I don't think the flat cable is twisted both cables are 2m.
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Tim
www.uno.net.uk & freenetname
Asus DSL-N55U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

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

Ixel

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Re: Sync speed difference between RJ11 cables.
« Reply #3 on: August 13, 2017, 12:26:46 AM »

That's why I don't use shielded cable (Tandy's), unless grounded their impact (whether positive or negative) will be random.

I don't use the flat cable however, I use a 2 meter Cat 6 RJ45 to RJ11 UTP (unshielded twisted pair) cable and it works fine, it'll offer better resistance to noise for that 2 meter run compared to the cheap/bundled flat cable. You can find this type of cable on eBay already made. Besides, if I do manage to get g.fast at around 500 meters from the cabinet then maybe it'll also come in handy for that!
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banger

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Re: Sync speed difference between RJ11 cables.
« Reply #4 on: August 13, 2017, 01:02:36 AM »

Thanks for the tip Ixel. I shall have a look on eBay now.
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Tim
www.uno.net.uk & freenetname
Asus DSL-N55U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

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

j0hn

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Re: Sync speed difference between RJ11 cables.
« Reply #5 on: August 13, 2017, 01:11:22 AM »

i use mrtelephones cat5e rj45 to rj11 solid core twisted pair. it will be the exact same as the cat6 version Ixel is describing but cat5e is much more flexible.

http://www.ebay.co.uk/itm/1M-CAT5E-DSL-LEAD-CABLE-for-FIBRE-TELEPHONE-LINES-like-BT-INFINITY-FTTC-VDSL-/351230412738

That's the 1m version. Mine is only 50cm though.
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banger

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Re: Sync speed difference between RJ11 cables.
« Reply #6 on: August 13, 2017, 01:47:50 AM »

Thanks John.

I have ordered this

http://www.ebay.co.uk/itm/3mtr-CAT6-ADSL-VDSL-Grey-Broadband-Cable-RJ11-to-RJ11-BT-Sky-TalkTalk-Internet/322639402839?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

I need a bit more than a metre and have a faceplate so RJ11 will suit fine. I wonder if I can achieve 80m sync ?
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Tim
www.uno.net.uk & freenetname
Asus DSL-N55U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

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

Chrysalis

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Re: Sync speed difference between RJ11 cables.
« Reply #7 on: August 13, 2017, 02:16:12 AM »

best is short twisted "unshielded" cables.
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j0hn

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Re: Sync speed difference between RJ11 cables.
« Reply #8 on: August 13, 2017, 03:00:54 AM »

You know the faceplates are actually rj45, not rj11.
rj45 plugs fit so much neater in the mk ssfp's
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Ixel

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Re: Sync speed difference between RJ11 cables.
« Reply #9 on: August 13, 2017, 09:29:29 AM »

One thing I want to mention is that there's another difference (other than flexibility of the cable) with Cat5e versus Cat6 cables. Cat5e is rated up to 100 MHz, while Cat6 is rated up to 250 MHz. This might make a difference if someone is close to their g.fast cabinet to receive frequencies over 100 MHz. However from what I understand 'profile 1', which is just a little over 100 MHz, will be used initially. Profile 2, just a bit beyond 200 MHz, could and will most likely be used at a future date (like VDSL2 on FTTC was initially 8c and then later on was changed to 17a).
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banger

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Re: Sync speed difference between RJ11 cables.
« Reply #10 on: August 13, 2017, 02:19:17 PM »

You know the faceplates are actually rj45, not rj11.
rj45 plugs fit so much neater in the mk ssfp's

I didn't know that yet the cable I am using fits perfectly. I thought RJ45 was for networking?
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Tim
www.uno.net.uk & freenetname
Asus DSL-N55U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

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

Ixel

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Re: Sync speed difference between RJ11 cables.
« Reply #11 on: August 13, 2017, 05:28:43 PM »

I didn't know that yet the cable I am using fits perfectly. I thought RJ45 was for networking?

RJ45 is usually meant for local area networks, yes, however the SSFP will accept RJ45 and RJ11 (though I prefer using RJ45 for a nice fit).
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banger

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Re: Sync speed difference between RJ11 cables.
« Reply #12 on: August 13, 2017, 08:18:21 PM »

So it does just tried an RJ45 in a faceplate and it fits. Although having trouble finding 2m UTP RJ11 to RJ45 all seems flat cable for ADSL.

How about this

http://www.ebay.co.uk/itm/112452145782
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Tim
www.uno.net.uk & freenetname
Asus DSL-N55U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

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

Dray

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Re: Sync speed difference between RJ11 cables.
« Reply #13 on: August 13, 2017, 08:27:49 PM »

Is it 2M or 5M ? :shrug2:
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banger

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Re: Sync speed difference between RJ11 cables.
« Reply #14 on: August 13, 2017, 08:47:34 PM »

Have asked the question, hoping it is 2m.
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Tim
www.uno.net.uk & freenetname
Asus DSL-N55U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

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