HP 98568A Installation Instruction page 450

HP 35723A HP Touch Bezel
• You cannot have more than 7 HP-HIL addressable devices connected
to your computer at one time. The HP 460S0A, 460S1A, 460S2A and
460S2B Extension modules and the HP 460S9A Four-Button Cursor
do not count as addressable devices, and the HP 460S5A Control Dials
Module counts as three addressable devices. All other devices count as
one addressable device .
• The current requirements of all of your devices must not exceed 750
milliamps (rnA). To make sure you do not exceed this requirement, total
up the typical power required by each of your HP-HIL devices as given in
the following "Worksheet Entries" sections. If the total exceeds 750 rnA,
you must remove one or more devices.
10-8 Adding Miscellaneous Peripherals