PSC PT2000TM - Manual (Page 20)

About the PT2000 and Top Gun
10 PT2000 & Top Gun PDTs
For complete information about the Top Gun module, refer to
Appendix C on page 99 .
Figure 2-1: The Top Gun Module
The Keypad
The keypads on the PT2000 and Top Gun have three types of keys: data
keys, function keys, and action keys (refer to
Figure 2-2 on page 11 ).
Each key produces a beep when pressed.