[Swansea Hackspace] TechHub Buzzer/Access Project

[Alan Cox]

On Tue, 4 Nov 2014 13:27:35 +0000
Gerrit Niezen <gerrit.niezen at gmail.com> wrote:

> >From this thread (http://www.diynot.com/forums/viewtopic.php?t=152253) it
> seems the wires mean the following:
> 1 =ringer
> R/T = Speech to door/Speech from door
> 0 = common
> Z = button one / buzzer to open door
> 

From the fault finding manual

I Call button 12v to ring
R Microphone
O Common (for ring, speech, lock)
T Speaker
Z Lock button (Z shorts to O when lock pressed)
V 12v supply (AC or DC)
L Door monitor (BSX-LX, 500L only)