Each code is made up of two series of flashes.
The first series indicates the 'tens' digit.
The second series indicates the 'ones' digit.
A long pause separates each code.
A shorter pause separates the 'tens' and 'ones'.
A system pass code is indicated by very short repeating flashes.
Code Format Diagram shows code No. 32.
If only code 12 is flashed out, then there are NO codes in memory.