Alllllrighty then. Let's see if this makes sense to you, because it doesn't make much sense to me!
<snip>
Confused am I. May the 4th be with you!
Yes, it does make sense to me.
I agree with your assignment of the three cables:
Black sheathed cable -- incoming service feed, using the
orange and the
white wires for the pair.
White sheathed cable with an added black identifier -- to the alarm, using the
white/blue striped and the
blue/white striped wires.
White sheathed cable -- to the extension sockets, partially disconnected.
This is my plan of action:
(1) At the master socket, carefully unscrew each of the terminals and remove every wire! Try to ensure that the
orange and
white wires of the incoming service feed (black sheathed cable) do not come into contact. (No harm will be done if thy do -- just try not to do so.)
(2) For the black sheathed cable, ensure that all the unused wires are folded back, so that they do not get in the way. Check the bare ends of the
orange and
white wires to ensure that the exposed core is not about to break off and will be good for eventual reconnection.
(3) For the white sheathed cable with the black identifying mark (to the alarm), do likewise, with the
blue/white striped and
white/blue striped wires.
(4) For the white sheathed cable (to the extensions), draw all the six wires straight together and carefully trim the entire bundle such that there are no exposed cores. Wind those six wires around two of your fingers and then flatten the resulting coil down into a sausage shape. When you come to refit the master socket to the backing box, you should ensure that wire sausage is tucked out of the way, to one side.
(5) Now the reconnection: (a) The
white wire from the black sheathed cable and the
blue/white striped wire from the alarm cable should be connected to terminal number two. (b) The
orange wire from the black sheathed cable and the
white/blue striped wire from the alarm cable should be connected to terminal number five.
(6) Carefully arrange the cables within the backing box (I can see from one of the images that there is not much clearance and that the alarm cable has been crushed somewhat in the past) and refit the socket to the backing box.
Job done.
You might like to perform an alarm test to ensure that when it is triggered, it does make a successful call to the designated number.
The next phase should be to contact your ISP and let them know that you do not have a designated
NTP -- an
NTE5/A -- so you do not have a test socket and are unable to fit an
SSFP. Also mention that you have a hard-wired alarm system and you would appreciate an
Openreach engineering visit to "normalise" your wiring with the fitting of an
NTE5/A. Remind them that it will be a FOC service by
Openreach . . .
Once all of the above is done, we can then continue to monitor how your Broadband connection behaves and suggest other things to try, if necessary.
