HP 98568A Installation Instruction page 495

HP 46094A Quadrature Port
Installation Procedure
Note
Connecting and disconnecting HP-HIL devices while some
language/ operating systems or application programs are
running may lead to unpredictable results. When possible,
connect all needed HP-HIL devices to your computer before
booting a language/operating system or running an application
program.
1. Select a suitable mounting location for the quadrature port. Remove the
paper backing from the back of the fastener pad. Place the pad at the
location and press down firmly for a few seconds. Slide the module unit onto
the fastener pad from the side and twist the module unit a few degrees to
lock it onto the fastener pad.
2. Find the end of the HP-HIL cable that is marked with one black dot.
3. Find the connector on the back of the quadrature port that is marked with
one dot.
4. Plug the "one-dot" end of the cable into the "one-dot" connector on the
quadrature port.
5. Connect the other, "two-dot" end of the cable into the HP-HIL connector on
your computer (marked "KYBD" or "KEYBOARD"), or to the "two-dot"
connector of the last HP-HIL device you installed (e.g., keyboard).
6. Connect the 3-button mouse (or other compatible device) to the 9-pin
D-subminiature connector on the quadrature port and fasten the two screws
with a screwdriver.
7. Keep these constraints in mind:
• 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
Adding Miscellaneous Peripherals 10-53