1. Cable of each pair + Voltage of powered detector
2. Your doing this when the mains is removed ?
3. Your SDP will then be "final exit"
4. BSIA
5. Make something ?
I nearly bought a scope some yrs back to fault find a CCTV job, they used to be very expensive CRT things.... But now a few a thundred quid.
I'd love one but have no practical use for it.
my cost for an employee to do the job would be £235.00 +vat (£282.00)
To register it on an a cloud a/c for you £50.00 +vat (£60.00)
There are ways of making it more profitable, however something as unlucky as getting a screw in a tyre or returning for warranty repair would take any margin made
call a local small co.
however if you want to prat about,
either z12 need programming out, or z1 & z2 are open ?
I'd assume the full system requires programming correctly ?