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The ACU1049A is also a switch. It enables the remote
station to switch between the local CPU and remote CPU
with a simple keyboard code. Its Double Private Mode locks
out the second workstation, preventing conflicts.
Versions for single or dual access, plus serial
extension.
With the ServSwitch
®
Brand CAT5 KVM Extenders with Serial
Extension, you can place a VGA monitor, keyboard, mouse, and
a serial device (such as a modem, printer, or touch screen) as far
as 1000 feet (304.8 m) from your PC’s CPU. Now you can operate
your PC from almost anywhere in the same building.
The ServSwitch Brand CAT5 KVM Extenders with Serial
Extension enable you to connect just about any standard
asynchronous RS-232 peripheral—including trackballs and serial
mice—that operate at up to 19.2 kbps and don’t require any
control signals other than RTS, CTS, DSR, and DTR.
Single-Access ServSwitch CAT5 KVM Extender with Serial
Extension models (ACU1002A, ACU1022A) are designed to
perform KVM and serial extension.
With the dual-access models (ACU1008A, ACU1028A), you
can attach an additional monitor, keyboard, and mouse to the
local unit. The PC can then be operated from either the local
or remote user station. These stations share access on a “first-
come, first-served” basis. When there’s no keyboard or mouse
activity on one station for a certain amount of time, the dual-
user extender switches automatically to the first station from
which it detects a keyboard keypress (or mouse movement, if
you prefer). The “inactivity timeout” prevents a user at the
other station from interrupting work in progress at the active
station. (NOTE: KVM contention has no effect on the serial
communication between the CPU and the remote serial device.)
For applications in which your remote station isn’t in a
secure location, the local user should set the extender for
“private mode” operation, which disables the remote monitor,
keyboard, and mouse.
Transmit audio, too.
The ACU1022A and ACU1028A models also provide audio-
extension capabilities. With them, you can place audio devices,
such as speakers, microphones, and headphones, up to
1000 feet (304.8 m) from the PC’s CPU! Through this
bidirectional stereo audio interface, sound can be transmitted
in both directions across the link at the same time. This way,
you can listen to near-digital-quality audio from the CPU via
speakers attached to the remote unit (on the single-access
version) or both the local and remote unit (on the dual-access
version).
Just about any standard PC sound card or consumer audio
device that doesn’t transmit or receive signals at voltages above
line level (5 volts peak-to-peak) works with the audio exten-
ders. And, as with the KVM and serial signals, the audio signals
transmit fully buffered.
No-hassle setup and operation.
Setup is easy. Start with a simple configuration of your
extenders. This is done using several internal controls. You may,
for instance, have to adjust jumpers to work with the distance
of the CAT5 cabling run between the extender’s local and
remote units. And, for the extenders with audio capabilities,
you may need to amplify microphone input from the
remote site.
As for the rest of the setup, connect the local and remote
units to each other and to your equipment, adjust your video
compensation as necessary, and you’re ready! The extenders
are simple to use and require no software. And, other than a
few keyboard-command functions, they operate automatically
and transparently in most cases. The remote unit draws its
power from an external supply, and the local unit is powered
by the connection from the CPU’s keyboard port.
Because the extenders perform complete PS/2
®
keyboard
and mouse emulation, you can boot the PC without having a
keyboard or mouse attached to it. Your PC will boot even if
an extender’s remote unit is not powered or if no keyboard or
mouse is connected to the local or remote unit. You can also
“hot-swap” the remote or local keyboard and mouse at any
time; that is, you can unplug and replug the keyboard and
mouse without disrupting the operation of the PC.
The extenders are designed for use up to a maximum cable
length of 1000 feet, and at this length, the video quality should
be acceptable even at a screen resolution of 1024 x 768 and a
refresh rate of 75 Hz. To fine-tune the image more, the
extenders feature fully adjustable video equalization to
compensate for the loss of image quality caused by the signal
passing through long cable runs. Jumpers on the remote unit‘s
board enable you to configure an equalization-adjustment
range appropriate to the length of the cable connecting local
and remote units, and rotary controls on the remote unit
enable you to adjust the compensation level while the system
operates.
The extenders are compatible with Microsoft
®
IntelliMouse
®
and other wheel mice. With the dual-access models, you can
even use a standard PS/2 mouse at one user station and an
IntelliMouse at the other.
To save even more space in your application, you can
rackmount the extenders using a 19" Rackmount Kit (RMK19U-
R2 or RMK19X), which enables you to place an extender unit in
1U of vertical space within a 19" rack.
724-746-5500
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