HP Model 715/100XC hp 9000 series 700 model 715 workstations service handbook - Page 27
Keyboards
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Keyboards There are three types of Hewlett-Packard keyboards available for use with the workstation. They are the following: S ITF Keyboard (Also known as Model # A1099C Keyboard) S PC Keyboard (Also known as the PC-101 (HIL) Keyboard, the "Enhanced Vectra" Keyboard, and Model # A2205B Keyboard) S AT Keyboard (Industry-standard AT-style keyboard that uses a mini-DIN, PS/2-style, connector, Model # A4030B) CAUTION: When connecting a HIL device (such as the ITF keyboard) ensure that the device conforms to the HP-HIL specification. Devices that are not HP-HIL compatible but have similar connectors may appear to be compatible, but will damage the system. Keyboard Differences Aside from the obvious difference in the appearance of the ITF and PC/AT keyboards due to the arrangement of the keys, there is also a difference in the keys and their output codes. Some keys on one keyboard (the ITF keyboard for example) may not exist on the other keyboard. These keys generate codes which also may not exist as output from the other keyboard (or may be generated by a different key). Codes that are generated when a key is pressed are called keycodes. Some applications expect to use keycodes generated by keys existing on one of the keyboards (the ITF keyboard for example). Since the keys do not exist on the other keyboard (the PC and AT keyboards), an accommodation must be made if the PC/AT keyboard is to be used. In most cases, it is still possible to use some other key that is equivalent (generates the same keycode from a different keycap). To do this, it is necessary to know which keys are equivalent on the two keyboards. Table 1-3 compares the equivalent keys on the ITF and PC/AT keyboards. NOTICE: Keyboard keys not mentioned in Table 1-3 are the same on all the keyboards. 1-14 Product Information