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SERVSWITCH™ ULTRA
Appendix D: The LK461 Keyboard
Some of the computers manufactured by Compaq
®
subsidiary Digital Equipment
Corporation come with a special keyboard called the DEC LK461. The ServSwitch
Ultra supports this keyboard by passing through unaltered the scan codes of
certain proprietary keys (such as [Help] and [Do]) and remapping others (such as
[PF1] through [PF4]). The ServSwitch Ultra maps the special keys of the LK461 as
shown in the table below. Note that the LK461 has no Num Lock LED and its Hold
Screen LED is equivalent to the Scroll Lock LED on other keyboards.
Key Pressed on
Scan Code
LK461 Keyboard
Sent to U.S. CPU
[Find]
[Home]
[Insert Here]
[Insert]
[Remove]
[Delete]
[Select]
[End]
[Prev]
[Page Up]
[Next]
[Page Down]
[F13]
Same (passed through unaltered)
[F14]
Same (passed through unaltered)
[F15] / [Help]
Same (passed through unaltered)
[F16] / [Do]
Same (passed through unaltered)
[F17]
Same (passed through unaltered)
[F18]
[Print Screen]
[F19]
[Scroll Lock]
[F20]
[Pause]
[PF1]
[Num Lock]
[PF2]
Keypad [/] (slash or divide key)
[PF3]
Keypad [*] (asterisk or multiply key)
[PF4]
Keypad [–] (minus key)
Keypad [–] (minus key)
Keypad [+] (plus key)*
Keypad [,] (comma key)
Keypad [+] (plus key)
Left [Compose]
Same (passed through unaltered)
Right [Compose]
Right [Control]
[<] / [>] (grtr. than/less than key)
[`] / [~] (accent grave/tilde key)**
*Keypad [–] is always mapped this way in Mode 2; in Mode 3, the mapping varies by country.
**This mapping varies by country; that is, the key is mapped differently depending on what
keyboard country or language the CPU is configured to accept.
