| The 20p and 20psia are functionally and programming identical. The PSIA models have a different set of system defaults (mostly for functions that are seldom used).
The online version of the manual you have will work just fine. The only significant change is that later models allow the use of 4 touchscreen keypads instead of just 2. __________________
"Ask the Right Question..."
- from _The Snow Queen_ by Joan D. Vinge- |