1
PC KEYBOARD/VGA SWITCH
1. Specifications
Leads Supported
—
High-density 15-pin:1-8, 10-15,
pin 9 is keyed
5-pin DIN: All
Controls —
1 reset button, 1 rotary
knob
Connectors —
Keyboard: 5-pin DIN
female; Monitor: keyed 15-pin high-
density DB15 female
Enclosure —
High-impact plastic
Temperature —
-20° to 70°C
(-4° to 158°F)
Humidity —
0 to 95% noncondensing
Size —
3.5"H x 19"W x 5"D
(9 x 48 x 13 cm)
Weight —
1.4 lb. (0.6 kg)
2. Introduction
The PC Keyboard/VGA Switch helps
you to squeeze more work out of an
underused VGA-based PC or
keyboard/monitor combination.
You can split the use of a single
processor between three or more
occasional users and give each a
private keyboard and monitor, or
use a single keyboard and monitor
to toggle back and forth between
three or more processors.
You save hundreds of dollars that
you might have spent on duplicate
equipment, and eliminate the
repeated nuisance and wear
of recabling.
The reset button on the Switch
reduces the chance of a complete
keyboard lockup when you switch
between processors. In every
mechanical switch, rotation creates
a momentary break between the
contacts, cuts the current supplied
to the keyboard, and poses the
threat of a “freeze.” One remedy
is a disruptive system reboot, which
would destroy work in progress. The
reset button provides a much less
harmful alternative—it signals the
keyboard to reinitialize without
affecting the data held in the
computer.
Note: With an IBM PC/AT
®
or compatible, you
might need to resort to the full reboot
to regain control of the keyboard.
Multiple Workstations Sharing
a Single Processor.
Multiple Processors Controlled
by One Keyboard.
MONITOR
KEYBOARD
PROCESSOR A
PROCESSOR B
KEYBOARD/
VIDEO PAIR A
KEYBOARD/
VIDEO PAIR B
PROCESSOR
