length of the “inactivity timeout,” the Extender “lets go” of that station, and will
switch to whichever station it next detects keyboard input from.
When the Extender boots up, it gives control (and its total attention) to the local
station for at least a portion of the inactivity-timeout period. This means that the
remote monitor might be blank, and the remote keyboard and mouse inactive, for
up to two seconds.
7.3.4 P
RIVATE
M
ODE
(D
UAL
-A
CCESS
E
XTENDER
O
NLY
)
For applications in which one station is not in a secure location, or must be
temporarily kept from accessing the local PC, users at one station in a Dual-Access
Extender system can trigger the Extender’s “Private Mode,” which prevents the
other station from taking control of the local PC even if the inactivity timeout (see
Section 7.3.3
) expires. Either station can go into Private Mode, taking exclusive
control of the local PC and locking out the other. When users at either the local or
remote station have control of the local PC, they can force the Extender into
Private Mode by pressing and releasing the hotkey at their keyboard, then pressing
and releasing [Scroll Lock]. The Scroll Lock LEDs on their keyboards will flash to
show that Private Mode is active.
If the
remote
station goes into Private Mode and locks out the
local
station, the
local monitor’s screen will be blanked, the local keyboard and mouse will be
disabled, and all three of the local keyboard’s LEDs (Num Lock, Caps Lock, and
Scroll Lock) will light to show that the station is locked out and can’t access the
local PC. The local station will be unusable until the remote station exits Private
Mode. In the meantime, the Scroll Lock LED on the remote keyboard will
continue to flash for the duration of Private mode. To exit Private Mode, the
remote user must press and release the hotkey, then press and release [Scroll
Lock].
If the
local
station goes into Private Mode and locks out the
remote
station, the
remote monitor’s screen will be blanked, the remote keyboard and mouse and
audio devices will be disabled (although the remote serial device will continue to
function normally), and all three of the local keyboard’s LEDs (Num Lock, Caps
Lock, and Scroll Lock) will light to show that the station is locked out and can’t
access the PC. In that situation, the remote station will be unusable until the local
station exits Private Mode. In the meantime, the local keyboard’s Scroll Lock LED
will continue to flash and the local user will have exclusive use of the PC. To exit
Private Mode, the local user must press and release the hotkey, then press and
release [Scroll Lock].
The Extender will not go into Private Mode unless there’s a powered PC
attached to the Local Unit.
37
CHAPTER 7: Operation
