Broadband Related > Telephony Wiring + Equipment
Connecting a BT80B-RF3
burakkucat:
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.
NewtronStar:
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 ;)
roseway:
I've stickied this as a useful reference.
Bestgear:
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
ejs:
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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