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The DOSS Range of UTP Video+Power Baluns allow you to connect your CCTV system using cheaper, thinner, lighter and more readily available CAT5E cable rather than expensive and bulky RG59U cable.

The passive (non-amplified) baluns allow transmission of realtime CCTV video signals and power over cost-effective Unsheilded Twisted Pair (UTP) cable, without any compression, loss or signal degradation and without the need for extra power supplied to be installed. Sending camera power over the same twisted pair as video means less cabling, and no power supply required to be installed near to the camera. Baseband (composite) signals of any type are supported.


  • Security Monitoring System
  • Multimedia Network Teaching System
  • Medical Monitoring Display System
  • Industrial Automation Control System
  • Banking, securities, financial information display system
  • Remote Network Server Monitoring
  • Department Store Security
  • Casino Security
  • Hospitals, Airports and banks
  • School Campuses


The main feature of the VPB45PCD is its ability to convert 24-28VDC to regulated 12VDC at the camera, allowing the system to be highly tolerant of voltage drop in the cable. The VPB45PCD has a mini-coax pigtail lead which allows quick mounting onto fixed cameras and allows in-camera
mounting in most dome cameras. 8P8C (RJ45) Jack connection for UTP cable enabling quick and simple installation. Working in pairs, the VPB45PCD eliminates costly and bulky coaxial cable, allowing live CCTV colour video signal up to 400m (1300ft), power transmission up to 250m (750ft) and PTZ data up to 200m (600ft).

The superior interference rejection and low emissions of the VPB45PCD allow signals to coexist in the same wire bundle as telephone, datacom, or low-voltage power circuits. This allows the use of a shared or existing cable infrastructure. The VPB45PCD has built-in surge suppression to protect video equipment against damaging voltage spikes. Its crosstalk and noise immunity ensure quality video signals. With PTZ/Data transmission built-in, you can still control all your PTZ cameras and other devices without any extra baluns or cables.

Example scenarios

Basic application: Direct connection with monitor

Simple application: Four cameras connected to DVR

Full CCTV application: Many cameras to DVR via powered hub.

4x PTZ cameras connected to DVR & controller



  • Single Channel Passive Video & Power Transceiver
    • Down-converts 24-28VDC to regulated 12VDC
      (voltage conversion at video transmitter end only)
  • Transmit power signal up to 250m (750ft)
  • Transmit data/PTZ signal up to 200m (600ft)
  • Full-motion colour signal up to 400m (1300ft) and
    monochrome (B&W) up to 600m (1950ft)
    via UTP CAT5e/6
  • NTSC, PAL & SECAM video format compatible
  • Real-time transmission
  • Male BNC with extended mini-coax pigtail
  • RJ45 Jack
  • No power required
  • Exceptional interference rejection
  • Built-in TVS (Transient Voltage Suppressors) for surge protection
  • Lightning protection design Grade III
  • 50dB crosstalk and noise immunity
  • Wave Filter Design, Anti-Static Design
  • Compact size and easy installation
  • ABS engineering plastic housing




Applied Devices CCTV cameras, monitors, DVR, switchers, IP encoders, and other CCTV equipment
Video Video Format PAL, NTSC, SECAM
Operating Frequency DC to 42MHz
Max Distance HD-TVI  720P: 190m HD-CVI  720P: 440m AHD 720P: 300m
HD-TVI 1080P: 190m HD-CVI 1080P: 220m AHD 960P: 240m
AHD 1080P: 220m
Common-mode/Differential-mode rejection 15kHz to 42MHz  60 dB type
Impedance Coax, BNC plug 75Ω unbalanced
UTP, RJ45 100Ω balanced
Attenuation 1.5 dB typ Max
Wire Type Network Wiring One Unshielded Twisted Pair (for each video signal) 24-16 AWG (0.5-1.31mm)
Category Type 2 or better
Impedance 100 ± 20 ohms
DC Loop Resistance 52 ohms per 1,000ft (18 ohms per 100m)
Differential Capacitance 19 pF/ft max (62 pF/m max)
Data Signal Transmission distance Up to 300m via UTP cat5e/6
Power No external power required
Connector Video input/ output BNC plug connector
Video input/ output RJ45 Jack
Protection Surge Protection renewable solid state surge protection
Video Input 2kV (common mode), 10/700us IEC6100-4-5/1955 (GB/T 1726, 5-1999)
Video Output 2kV (different mode), 10/700us IEC6100-4-5/1955 (GB/T 1726, 5-1999)
Mechanical Housing ABS engineering plastic
Body Color Black
Dimensions(L*W*H) 60.4*29*20.4mm (BNC connector excluded)
Net Weight 65g
Environmental Operating Temperature −20°C ~ 70° C
Relative Humidity 0~95% (non-condensing)
Storage Temperature −40°C ~ 150°C



Balun LEDs

Power indicator—power is being transmitted/received
Over-current—maximum current (1.5A) has been exceeded


Video and Power Balun wiring

  Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8
DOSS Video+
Power Balun
Video Video Power – Power – Power – Power + Power + Power +


Power over Twisted Pair: Voltage Drop Reference

Transmission Voltage (Voltage Drop)
camera requirement
camera requirement
camera requirement
50m / 160ft 13.5V (1.5V) 15.5V (3.5V) 17.0V (5.0V)
100m / 320ft 15.5V (3.5V) 18.5V (6.5V)

22.0V (10.0V)

150m / 500ft 17.0V (5.0V) 22.0V (10.0V) 27.0V (15.0V)
200m / 650ft 18.5V (6.5V) 25.5V (13.5V) 32.0V (20.0V)
300m / 1000ft 22.0V (10.0V) 32.0V (20.0V) 42.0V (30.0V)
eg: to supply a camera that requires 12VDC/0.5A, over a run of 150m cable, you require an initial transmission voltage supply of 17.0VDC (to account for 5V voltage drop over cable)
Note: based on typical CAT5e cable (will vary on make and quality of cable)