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Author Topic: Connecting a BT80B-RF3  (Read 33019 times)

burakkucat

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Connecting a BT80B-RF3
« on: May 16, 2014, 12:49:48 AM »

I had cause to check the terminals of an RF3 and as they were poorly marked, I thought it would be useful to document them here.

Looking at the photograph, below, the screw terminals in the top RH corner are A-wire, earth & B-wire (reading from top to bottom) and the IDCs in the bottom LH corner are B-wire, earth & A-wire (again reading from top to bottom).

At the same time, I decided to check the resistance of the common-mode chokes. Both were found to be 0.8 Ohm, when measured using my ex-Beattie Fluke 8022B DMM.
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NewtronStar

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Re: Connecting a BT80B-RF3
« Reply #1 on: May 16, 2014, 01:36:32 AM »

many thanks BC, and I did a google search for any wireing diagram before installing and found none so just used my uncommon sence, so I hope your post will help other kitizens avoid the same mistake as me  ;)
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roseway

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Re: Connecting a BT80B-RF3
« Reply #2 on: May 16, 2014, 07:20:38 AM »

I've stickied this as a useful reference.
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  Eric

Bestgear

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Re: Connecting a BT80B-RF3
« Reply #3 on: November 13, 2017, 08:00:26 PM »

Hi...

Are these still used with FTTC as they are with ADSL?

From recent router PCB layouts examined, most seem to have much improved filtering.


David
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ejs

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Re: Connecting a BT80B-RF3
« Reply #4 on: November 13, 2017, 08:20:57 PM »

Which modem/routers are you referring to? I've only heard about some Zyxel devices containing an interference filter on the DSL input.
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4candles

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Re: Connecting a BT80B-RF3
« Reply #5 on: November 13, 2017, 10:14:41 PM »

Isn't it the SSFPs which have the filtering, rather than routers?
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