High-Usage Contacts; Other General Design Guidelines - Fujitsu Stylistic 2300 Technical Reference Manual

High-Usage Contacts

The high-usage contacts on the pen tablet are designed to be used with a spring-loaded "pogo-pin" style
probe. The suggested probes for use in peripherals are as follows:
• Interconnect Devices part number RFQ-5657
"Bias-ball" type spring probe, recommended for use with 5-volt, 16-volt, and ground positions. This
probe has an internal ball bearing which prevents excessive current from flowing through the spring
in the probe.
• Interconnect Devices part number SR-3-J-4.3-G
Regular type spring probe, recommended for use with data and clock signal positions only. (Do not
use in power or ground positions.)
These probes are available from Interconnect Devices, Inc. (IDI), 5101 Richland Avenue, Kansas City,
Kansas 66106, <www.idinet.com>.

Other General Design Guidelines

Note the following guidelines and suggestions when designing your peripheral.
• Ensure that your design provides sufficient air ventilation around the heat sink on the pen tablet by
not blocking the area around the heat sink. Also, note that heat is dissipated from all surfaces of the
pen tablet (not just the heat sink). Providing ventilation at the heat sink is especially important if your
design encases the pen tablet in any way.
• Consider whether your design allows clearance for accessories such as hand straps attached to the pen
tablet.
• Ensure that your design is in compliance with the necessary regulatory agencies such as FCC, UL,
TUV, etc.
• Consider providing over-voltage protection in circuitry that connects to the pen tablet's 5-volt output
to prevent damage as explained in "Detecting the Peripheral" on page E-3.
• Ensure that your design meets the shock and vibration requirements for your application.
• Consider ergonomic factors in your peripheral design and installation.
• Ensure that your design maintains access to required areas of the pen tablet such as the Suspend/
Resume button or connectors. (Note, however, that the keyboard/mouse port connector on the pen
tablet should not be used at the same time as the keyboard and mouse signals of the high-usage
contacts.)
E-4 Designing Compatible Peripherals for the High-Usage Contacts
Microsoft Corp. Exhibit 1020