GTCO MM II 1201 - Users Guide - Manual (Page 36)

MM II 36
 Transducer identification: Command sends a character string to the host that
identifies which transducer (stylus or cursor) is attached to the tablet. The string is
one of the following:
CSR4<CR> Four button cursor
CSR16<CR> 16-button cursor
STYLUS<CR> Stylus
Section D: Reserved Commands
Do not use the ASCII commands zh, zd or zf or their equivalents. They are reserved for
factory use. If a reserved command is issued by mistake, clear it by repowering the tablet.