20-08-2022, 06:23 AM
Thanks for this
The system works perfectly without the keypad connected.
I have connected the keypad to an old physics lab power supply where I can read off the current draw - it seems in order at around 50 to 80ma.
I am going to circumvent the installed cable and run a quick test cable keypad directly to the box to see if as you suggest, there is some issue in the installed cable. I've always had a suspicion this cable was compromised on installation but its failure is intermittent (perhaps weather or moisture dependant etc)
The system works perfectly without the keypad connected.
I have connected the keypad to an old physics lab power supply where I can read off the current draw - it seems in order at around 50 to 80ma.
I am going to circumvent the installed cable and run a quick test cable keypad directly to the box to see if as you suggest, there is some issue in the installed cable. I've always had a suspicion this cable was compromised on installation but its failure is intermittent (perhaps weather or moisture dependant etc)
