Use ordinary shielded twisted-pair cable
to connect a PC video source to a display device
up to 450 feet (137.2 m) away.
Use ordinary shielded twisted-pair cable
to connect a PC video source to a display device
up to 450 feet (137.2 m) away.
VGA Baluns and Keyboard/Mouse Baluns
© 2007. All rights reserved. Black Box Corporation.
FREE 24-hour Tech Support: 724-746-5500
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FEATURES
• Suitable for use in classrooms or
meeting rooms.
• Require inexpensive twisted-pair
cable instead of standard VGA cable.
• Video baluns extend the distance up
to 450 feet (137.2 m) between a CPU,
keyboard, and mouse and a display
monitor.
• Keyboard/Mouse Baluns connect a
keyboard and mouse up to 350 feet
(106.7 m) away from a CPU and display
monitor.
Two options for video display and control.
OVERVIEW
Link a PC’s video output to a display device located up to
450 feet (137.2 m) away using CAT5 shielded twisted-pair cable.
Or use CAT5 unshielded twisted-pair cable (UTP) to connect a
PS/2
®
keyboard and mouse up to 350 feet (106.7 m) away from
your CPU and display monitor.
VGA Baluns and Keyboard/Mouse Baluns are perfect for
classrooms, digital signs, and presentations. They use readily
available and inexpensive CAT5 cable. And no power supply is
required because the baluns and extenders derive ultra-low
power from the interface.
In a digital sign application in an auditorium, you can control
the video source at the back of the room and the video sign
display at the front of the room. In a classroom application,
you can control the keyboard and mouse at the back of
the room, while your partner controls the video source
and display at the front of the room.
The VGA Baluns must be used in pairs. The VGA Source
Balun (AC640A) connects to the local source (the CPU),
and the VGA Display Balun (AC641A or AC642A) links to
the remote display.
The Keyboard/Mouse Baluns must also be used in pairs.
The local unit (AC643A) connects to the CPU. The remote
unit (AC644A) connects to the keyboard and mouse.
Keyboard/Mouse
Balun, Local
(AC643A)
Keyboard/Mouse
Balun, Remote
(AC644A)
CPUMonitor Keyboard and
mouse ports
Keyboard
Mouse
Typical application using VGA Baluns.
Typical application using Keyboard/Mouse Baluns.
2/16/2007
#26523
724-746-5500 blackbox.com
VGA Source Balun
(AC640A)
VGA extension up to 450 ft. (137.2 m)
over CAT5 STP
Keyboard and mouse extension up to
350 ft. (106.7 m) over CAT5 UTP
Keyboard
Mouse
Monitor
VGA Display Balun
(AC641A or AC642A)
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TECH SPECS
Bandwidth — AC643A–AC644A: DC to 1 MHz
Cable — AC640A–AC642A: Shielded CAT5 twisted-pair (STP) or better;
AC643A–AC644A: Unshielded CAT5 twisted-pair (UTP) or better
Distance (Maximum) — AC640A– AC642A: Over CAT5 STP:
VGA: 450 ft. (137.2 m) using 640 x 480 @ 15 MHz;
SVGA: 350 ft. (106.7 m) using 800 x 600 @ 30 MHz;
XGA: 250 ft. (76.2 m) using 1024 x 780 @ 60 MHz;
SXGA: 200 ft. (61 m) using 1280 x 1024 @ 100 MHz;
AC643A–AC644A: Over CAT5 UTP: 350 ft. (106.7 m)
Enclosure — AC643A–AC644A: ABS fire-retardant plastic
Pinning Configuration — AC643A–AC644A: Reverse polarity sensitive;
use T568A or T568B straight-pinned wiring;
Mouse: Ring: Pins 1 and 3; Tip: Pins 2 and 6;
Keyboard: Ring: Pins 4 and 7; Tip: Pins 5 and 8
Signals — AC643A–AC644A: Mouse data, mouse clock, keyboard data,
keyboard clock, Vcc, ground
Transmission — AC643A–AC644A: Transparent
Connectors — AC640A, AC642A: (1) shielded RJ-45, (1) HD15 M on 6"
(15.2-cm) lead;
AC641A: (1) shielded RJ-45, (1) HD15 F;
AC643A: PC: (2) 6-pin mini-DIN M on 6" (15.2-cm) leads;
Cable: (1) RJ-45;
AC644A: Keyboard/mouse: (2) 6-pin mini-DIN F;
Cable: (1) RJ-45
Size — AC640A–AC642A: 1"H x 2.4"W x 2.3"D (2.5 x 6.1 x 5.8 cm);
AC643A: 1.9"W x 1" diameter (4.8 x 2.5 cm) with (2) 6" (15.2-cm)
PS/2 cable leads;
AC644A: 1"H x 2.4"W x 2.4"D (2.5 x 6.1 x 6.1 cm)
Weight — Each unit: 0.1 lb. (<0.1 kg)
2/16/2007
#26523
Recognize any of these situations?
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tech support line is closed.
According to a survey by Data Communications
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that getting the technical support they need is extremely
important when choosing a vendor. But even though
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overall purchase price for a basic service and support
contract, the technical support and service they receive falls
far short of their expectations— and certainly isn’t worth
what they paid.
At Black Box, we guarantee the best value and the
best support. You can even consult our Technical Support
Experts before you buy if you need help selecting just
the right component for your application.
Don’t waste time and money— call Black Box today.
Why Buy From Black Box? Exceptional Value.
Exceptional Tech Support. Period.
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Item Code
VGA Source Balun AC640A
VGA Display Baluns
Female AC641A
Male AC642A
Keyboard/Mouse Baluns
Local AC643A
Remote AC644A
You might also need…
VGA Extender AC555A
CAT5 Solid-Conductor Cable (UTP), 100-MHz, 24 AWG,
4-Pair, T568B, PVC, NEC®, CMR, Straight-Pinned
EYN737MS
AC644A
AC643A
AC640A
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