41
CHAPTER 5: Operation
•
Control-lockout indication—unison flashing.
As shown in Figure 5-2 below, the
Extender flashes all three LEDs on either keyboard at the same time (all three
ON, then all three OFF, repeating indefinitely) to show that the other control
station has exclusive control of the primary CPU. Once the inactivity timeout
expires (see
Section 4.2.1
) so that the user at that station can take control of
the CPU, these LEDs will stop flashing and return to their previous states.
Figure 5-2. The control-lockout LED pattern.
•
Password-lockout indication—lightbar flashing.
As shown in Figure 5-3 below,
while the Extender is locked and waiting for the user to enter a password (see
Sections 4.4
and
5.1
), it alternately lights the Num Lock/Scroll Lock LED pair
and the Caps Lock LED on the primary keyboard. This pattern of flashing
alternate LEDs is similar to that of the lights in the lightbar of a police car.
Once you type in the correct password and press [Enter], these LEDs will stop
flashing and return to their previous states.
Figure 5-3. The password-lockout LED pattern.
NUM
LOCK
CAPS
LOCK
SCROLL
LOCK
NUM
LOCK
CAPS
LOCK
SCROLL
LOCK
NUM
LOCK
CAPS
LOCK
SCROLL
LOCK
NUM
LOCK
CAPS
LOCK
SCROLL
LOCK
