transmission of Audio & Video signals YUV (YCbCr / YPbPr) VGA
(RGBHV) RGB (RGBS) S-Video (Y/C) up to 600
metres using UTP CAT-5 / CAT-6 LAN or TP Telephone Cable.
BalUns for transmission of common composite Video
or Audio over a single twisted pair in a Network Cable. 4 individual
signals can be carried over a single, flexible, easily-installed, low
cost 4 pair UTP Cat-5, Cat-5e, Cat-6 LAN or Telephone Cable.
devices are suitable for transmission up to ~600 Metres using high
quality UTP LAN Cable, we recommend testing to assess results with 120
ohm impedance UTP Telephone Cable.
Amplifiers can be used for VIDEO at
Transmitting &/or Receiving ends to compensate for
high-frequency-attenuation (image detail,
colour) & other losses.
Bulk-Buy carton of 224. $5
448 +. Price is negotiable for larger quantities
with High Efficiency RM Core.
For transmission of
75 ohm unbalanced Video Signals (Composite, S-Video Y/C, YUV YCbCr/YPbPr,
VGA RGBHV, RGB RGBS) over balanced 100/120 ohm Twisted Pair LAN
Cat-5/6 UTP Cable.
primarily for use in Cameras, Switchers, Monitors, Capture Cards,
Multiplexers, Quads, VCRs, Digital Video Recorders, compact/covert
BalUn-100/75RoHS is designed for PCB mounting, is similar to and
compatible with device used in our Video BalUns.
This BalUn has many
desirable qualities due to a combination of low winding resistance
and Core size/material/characteristics. It presents a high impedance
to common-mode signals while passing differential-mode signals with
approximately DC ~ 8 MHz.
Lead-Free RoHS Compliant (11/07>).
Core with Windings, 2 x Core halves & Clips, ~ 20 × ~ 17 × ~
16 mm, ~ 8 grams.
Bulk-Buy 480 + * price
negotiable for larger quantities
For transmission of
unbalanced Line-Level Audio Signals over balanced 100/120 ohm
Twisted Pair LAN Cat-5/6 UTP Cable.
Designed primarily for use in AV Cameras, AV Switchers, AV Monitors,
AV Capture Cards, VCRs, Digital AV Recorders, compact/covert
BalUn-Audio is designed for PCB mounting it is similar to and
compatible with device used in
approximately 20 Hz ~ 20 kHz.
Five ~ 4 mm pins, ~ 19 × ~ 15 × ~ 17 mm, ~ 15 grams.
Audio from 'Shielded Cable' across ~ 65 Ω winding (2 pin side),
connect 'UTP' across ~ 50 Ω winding (3 pin side), center pin not
New version has
mm 'Wire Length' & '5 pins'.
Results may vary depending on Source level (Camera,
Preamplifier, etc), sensitivity of Input device (DVR, Monitor,
Amplifier, etc), interconnections &
(UTP)Balanced: signal (1) ground (3)
(Coax) Unbalanced: signal (6) ground (4)
interconnecting Cameras / Switchers / Quads / Multiplexers /
Monitors / Digital Video Recorders / PC based DVRs / VGA RGB YUV
RGBHV S-Video Y/C YCbCr YPbPr Audio Signals / etc / etc.
Use Flexible -
Low-Cost - Small-Diameter Category-5 or Category-6 100 ohm impedance
Unshielded Twisted-Pair (UTP) Local-Area-Network (LAN) cable or
common TP 120 ohm Telephone cable to transmit unbalanced 75 ohm
Composite Video signals:
Up to 600 metres
(monochrome) and up to 300 metres (colour) using Passive Baluns with
high quality unshielded Cat-5/6 LAN cable.
Up to 2 400 metres
(monochrome) and up to 1 500 metres (colour) using Active Amplifiers
with high quality unshielded Cat-5/6 LAN cable.
Baluns or Active
Amplifiers may save hundreds of dollars on coax cable and labour and
ensure that you get-the-job! Use in Residential Units, Universities,
Offices, Hospitals, Showrooms, Elevators, for Covert Surveillance.
Utilise unused spare pairs that may be available in existing LAN or
devices may be used at each end of Twisted Pair.
Amplified Transmitter or Receiver may be used with a passive device
to extend the transmission distance.
Single-Cable-Solution 600 + metres use spare pair(s) for Power
Information: Ask for our 'Balun Link List' a very useful resource
for general Balun information,
e-mail your request with your Balun purchase Invoice Number.
PC DVRs & other
Digital Video Recording systems: We recommend use of high quality
Cat-5/6 cable, if runs exceed 250 ~ 300 metres use
TWIST-AMP for better results.
To ensure best
possible image contrast and brightness in Low-Light conditions we
recommended High-Quality Low-Loss Coaxial Cable and
Vid-Amp/4 for long runs, acceptable results may be possible with
unshielded Cat-5/6 Cable and
Twisted Pairs may
be paralleled to extend the transmission distance of Video Signals
however any gain will be a trade-off as paralleled pairs lower
immunity to common-mode interference and increase attenuation of
high frequency signals.
Input: AC or DC Output: 12 VDC Regulated. Ideal for long power cable
runs where voltage drop due to cable resistance is a problem.
Cable resistance, Cable length and Current drawn by Camera affect
voltage drop which can be reduced by using thicker gauge wire and/or
paralleling pairs. A test using 24 AWG Cat-5 Cable, a 24 vac
Power Supply, REG-12VDC In-Line Rectifier-Regulator and a Camera
that draws 100 milliamps demonstrated that lengths of 600 + metres
is practical, 2 pairs in parallel would increase this to 1 200 +
A single 24 AWG
(0.5 mm diameter) conductor has a resistance of ~ 9.4 ohms per 100
metres, voltage drop will be ~ 1 volt per 50 metres of Cat-5 Twisted
Pair when powering a Camera that draws 100 milliamps. (calculation:
9.4 ohms x 0.1 amps = 0.94 Volts)