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CHAPTER 7: Operation

7.3 Keyboard Commands and Related Functions
This section describes Micro Extender functions that can be controlled with
commands that users can type in at the user-station keyboards, as well as some
related functions. The different Extender models have different command
formats:
• The ACU3001A and ACU3009A use [Scroll Lock] as a single multipurpose
“command key”—pressing and releasing it different numbers of times,
sometimes while pressing the mouse buttons, causes the Extender to do
various things.
Very few of today’s software applications make use of the [Scroll Lock] key,
but if you’re using such an application on the PC attached to the Extender,
you can force the Extender to ignore the [Scroll Lock] character and pass it
through to the PC. Do this by setting position 2 of the Remote Unit’s DIP
switch to ON (see Section 5.2). Turning off [Scroll Lock] recognition will
disable the Extender’s reset command (see Section7.3.1), and on the Dual-
Access model it will disable Private Mode as well (see Section7.3.4).
• The ACU3022A uses either left-[Ctrl] or right-[Ctrl] as a “hotkey” that will
trigger the Extender to expect an additional command character. Right-[Ctrl]
is the default hotkey, but you can change it to left-[Ctrl] if necessary by moving
position 2 of the Remote Unit’s DIP-switch SW1 to ON (see Section5.2).
For a quick summary of all of the Micro Extender’s keyboard commands, see
AppendixB.
7.3.1 R
ESETTINGTHE
K
EYBOARDAND
M
OUSE
When a Micro Extender system is set to its factory defaults, or if a keyboard or
mouse attached to the Extender ever lock up, you can reinitialize a user station’s
keyboard and mouse by typing in a reset command at the keyboard of a user
station attached to the Extender:
• In an ACU3001A Single-Access system, press and release the [Scroll Lock] key
once.
• In an ACU3009A Dual-Access system, press and release the [Scroll Lock] key
onceat the Remote Unit or twice at the Local Unit.
• In an ACU3022A KVM/Serial/Audio system, press and release the hotkey,
then press and release the up-arrow (number 8) key on the keyboard’s
numeric keypad (notthe number 8 on the top row of the keyboard).