Specifications
Te c h S u p p o r t 0 1 1 8 9 6 5 6 0 0 0 • S a l e s 0 1 1 8 9 6 5 6 1 5 0
8
Multimedia Extenders
Wizard Multimedia Extenders
The Black Box Wizard Multimedia system
comprises of two parts - a transmitter and a
receiver. The transmitter will take in a VGA
signal and an analogue stereo audio feed from
a media player and transmit the signals up to
300 metres on CAT5/5e/6 twisted pair cabling
up to the receiver.
This receiver is available in two versions,
one supporting Deskew. Deskew is required if
the system is to be used on certain CAT5e
cabling sytems and ALL CAT6 cabling systems.
Deskew is not required for true CAT5 cabling.
Monitors and
Speakers
Monitors and
Speakers
PC
Quad Video/Stereo Audio
Transmitter (AVU5004A)
Dual Video/Stereo Audio Receiver
with Deskew (AVU5111A)
Dual Video/Stereo Audio Receiver
with Deskew (AVU5111A)
Monitors and
Speakers
Monitors and
Speakers
Black Box Explains
Skewing effect.
Within a CATx cable of a certain length, the individual pairs might
h
ave individual different lengths, caused by higher or lower twist ratios.
There are two common cable standards:
one with a 2 + 2 structure (two pairs of approximately length A and two
p
airs of approximately length B) and one with a 3 + 1 structure (3 pairs
of approximately length A and one other pair of a different length B).
Sending a signal across cable pairs that are different in length causes
different runtimes.
This runtime-caused signal delay is called skew. Of course, the longer
the cable, the higher the skew can be. This affects the video signal—the
picture on the remote screen.
The colour signal arriving earlier (over a shorter, less twisted pair) is
moved more to the left side of the screen, the colour signal arriving
later (over a longer pair with higher twist ratio) is moved to the right.
All colours displayed on a screen are made of red, green and blue. If
skew occurs, even a simple black character might appear blurred.
To avoid this impact on picture quality, there are three options:
The cheapest is to select an appropriate cable or change pairs within
the cable to minimise runtime delays.
As this is often not allowed or possible, another option is to use
external Delay Lines to adjust differences (call Tech Support about the
ACU5100A).
Lastly, when starting from scratch, the most suitable solution is the
n
ew ServSwitch Wizard Multimedia Extender Plus (as shown on page 9).
Available in 2, 4 and 8 video port versions, each including built in skew
compensation allowing for variable cable lengths. A cascaded system
c
an support up to 64 screens concurrently.
As described already, three pairs carry colour and synchronisation signals (one colour
p
air). Cables rated higher than CAT5 don’t have equal pair lengths to fulfill their
intended Ethernet specifications, so the colour signals arrive at a different time at
the remote end.
T E C H S P E C S
D
istance without Cascading (Maximum) — 300m
Distance with Cascading (Maximum) —
1 Cascade connections - 250m
2 Cascade connections - 200m
3 Cascade connections - 175m
Resolution (Maximum) —
1600x1280 @ 60Hz @ 200m
1280x1024 @ 60Hz @ 300m
Connectors —
(2) VGA HD15 Female (1) Input and (1) Output, (2)
3.5 mm female audio jacks and (1) Input and (1) out-
put, (1) 2.5 mm DC Power Input. AVU5001A,
AVU5004A also have (1) RJ-45 female transmitter
ports. AVU5011A and AVU5111A also have (1) RJ-45
female receiver ports.
Power — 100-240 VAC, 50-60Hz external
Size — 95 x 26 x 98 mm
Item Code Price
Quad-Video/Stereo Audio Transmitter
AVU5004A £185.00
Single-Video/Stereo Audio Receiver
AVU5011A £145.00
Dual-Video/Stereo Audio Receiver with DeSkew
AVU5111A £185.00