Most of those units, at least in the US, have been converted to cellular data now.
To anwer ops question, without the manual in the panel box, you may have to see if there is a newer but compatible keypad but you would not likely be able to use the old equipment on the modern panels easily.
Most of those units, at least in the US, have been converted to cellular data now.
To anwer ops question, without the manual in the panel box, you may have to see if there is a newer but compatible keypad but you would not likely be able to use the old equipment on the modern panels easily.
Edit: also +1 on Ademco panel