Joy Tem files accessibility percentage

Question

[adp7]

Hi,

I'm currently working on Homstrad .tem files.

I didn't a found a data descriptor of those files. I'm wondering what does "a" and "b" in accessibility percentage stand for.

Example:

>P1;1aps
percentage accessibility
7874623203040407a6b05037101740662501010553a81302140002674085038003737436080
4506168263318374b602564*
>P1;2acy
percentage accessibility
45aa43010303022703b18017502700561a01020321b87103020003054025017004860059070
66021783762a8373a706137*

Thanks