Panasonic KX-T336 System Reference Manual page 1500

3.03 Card Test procedure
Enter the test command according to the card test
format below.
=> x y y
Card No. (01-15, or ** )
Shelf No. (1: Basic 2: Expansion 1
(Note) "* " can be used as a wild card character
"* " or "** " means "All"
1** means all cards in the basic shelf
(Example)
Executing card No. 208 test
=> 208
2
***** Executing
3
4
1 COMMON 2
(Note) When you test the DISA card, the following
message appears on the screen
=> 105 <OGM Test ? Y/N/C>
When you select "Y", the previously recorded OGM
message is erased.
When you finish the card test, go to the Test Main
Menu by pressing the <END> key.
3: Expansion 2)
3 4
14-F-5