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Message 1 of 4

HELP Wiring BT block terminal 77a

@imjolly

Good morning,  I've disturbed the terminal block (terminal 77a )whilst changing my window yesterday...Can't seem to get back connected 😕  If I could get some clarity it would be much appreciated.

 

 

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Message 2 of 4

Re: HELP Wiring BT block terminal 77a

You just mirror the wiring top & bottom so the same colour wires are connected to the same pins on the connectors. If one has come adrift & you don't have a punchdown tool, an old credit card can be used to push the wire back into place.

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Message 3 of 4

Re: HELP Wiring BT block terminal 77a

I've done this, tried uploading a picture but it keeps saying file too large ..  

 

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Message 4 of 4

Re: HELP Wiring BT block terminal 77a

See picture.

If this doesn't work then the possibilities are that the colour code hasn't been adhered to or the wiring is damaged.

TelephoneSocket.jpg

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