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Masterlink -> RJ45 Cable (what is the right connector)

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Tim84
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Tim84 posted on Mon, Nov 11 2019 9:06 AM

Hello together,

 

as I now have completely set-up and tested my B&O Masterlink installation it is time to hide all the cabling. Therefore i installed CAT 7 into my house some time ago. To connect everything I need a bunch of ML -> RJ45 Cables (15 pieces). As these cables are quite expensive and I have enough masterlink cables I wondered if i could cut the ML Cables into two pieces and attach RJ45 connectors to each end.

 

I understand this is the right cabling:

 

PIN  CAT    Masterlink
 1 ws/or rt (16) 
or  ws/rt (15) 
ws/gr  pink + ws/bl (12+13) 
6  gr bl (11) 
ws/bl  ws/or (13) 
bl  or (14) 
ws/br  gr (2) 
 br ws/gr (1) 
   gnd  gnd

 

Do you have recommendations for the right RJ45 pConnector as there have to be connected 2 wires to PIN 3.

Current System

  • Livingroom: BeoVision 7 MKV + BL7-2 + 2xBL 8000 + BL 2 + 2x BL 4; BeoSound Ouvertre
  • Bedroom: BV 7-32 MKIV / BL7-1
  • Kitchen: BV 6-22;
  • Bathroom: BL 3500
  • Entrance: BL 3500

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Tim84
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Tim84 replied on Sun, Mar 1 2020 10:07 AM

I have just tested several RJ45 Plugs but the original one from B&O seems way longer than normal RJ45 plugs. Is there a recommendation how these cables are made right? Do you really crimp two cables on one pin or do you connect the cables first together and the connect this one cable into the plug? Any recommendations would be great.

Current System

  • Livingroom: BeoVision 7 MKV + BL7-2 + 2xBL 8000 + BL 2 + 2x BL 4; BeoSound Ouvertre
  • Bedroom: BV 7-32 MKIV / BL7-1
  • Kitchen: BV 6-22;
  • Bathroom: BL 3500
  • Entrance: BL 3500
Johan
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Johan replied on Sun, Mar 1 2020 10:45 AM

Hello Tim, I cannot help you with your exact question from experience*, but I could imagine you go the other way: find some good patch cables, cut them to the right length and solder an 8 pin din connector to the loose end. There you can easily make the leads come together. Maybe an idea?

Johan

*I did make some powerlink cables myself using RJ45 wall sockets, RJ 45 crimp plugs, Lumberg 8 pin din plugs and Tasker c207 microphone cable. I used these same cables in the wall, and I did not respect the wiring scheme B&O recommends :-)

Johan
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Johan replied on Sun, Mar 1 2020 11:16 AM

sorry - ignore my post - somehow i completely overlooked you want to make masterlink cables!

Johan
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Johan replied on Sun, Mar 1 2020 12:20 PM

Having read your question properly now: I think it will not be possible to run two of the masterlink cable wires into one position of the rj45 plug. There will not be enough space and you risk to not having a proper connection as the little blades are made to cut through 1 plastic wire lining only.

I guess it will be most easy (as you said) to connect the two wires first. With help of some heat shrink tube you must be able to use any good quality rj45 plugs I would reckon (irrespective of their length)

Johan
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Johan replied on Sun, Mar 1 2020 12:54 PM

Or (last post of today) you could strip the isolation of (only) these two wires and twist them so that together they get the thickness of one isolated wire.

Keep all other wires isolated and crimp the connector. This is what I would try, and it would result in an elegant cable. Let us know what you will do!

Tim84
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Tim84 replied on Sun, Mar 1 2020 6:34 PM

This is a great tip. I will try that tomorrow as this sounds like a good solution.

Thanks a lot Johan :-)

Current System

  • Livingroom: BeoVision 7 MKV + BL7-2 + 2xBL 8000 + BL 2 + 2x BL 4; BeoSound Ouvertre
  • Bedroom: BV 7-32 MKIV / BL7-1
  • Kitchen: BV 6-22;
  • Bathroom: BL 3500
  • Entrance: BL 3500
Johan
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Bolsward, NL
157 Posts
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Gold Member
Johan replied on Tue, Mar 10 2020 6:07 PM

Hi Tim84, were you able to make some functioning cables?

Zeus_72
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Zeus_72 replied on Fri, Mar 13 2020 12:33 PM

This is what I made....can it help?










Johan
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Johan replied on Fri, Mar 13 2020 1:41 PM

Hi Zeus72, I think this is exactly what Tim is after: make two masterlink cables from 1 (with a bit of diy magic). Regards, Johan

Johan
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Johan replied on Thu, Mar 26 2020 6:42 PM

Also made one:

Johan
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Johan replied on Thu, Mar 26 2020 6:43 PM

Johan
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Johan replied on Thu, Mar 26 2020 6:44 PM

Johan
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157 Posts
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Johan replied on Thu, Mar 26 2020 6:45 PM

Johan
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Johan replied on Thu, Mar 26 2020 6:46 PM

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