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DOSS 2012 CCTV Balun Range (.pdf)

Discontinued

VPB45PCD PASSIVE VIDEO & POWER BALUN WITH DC-DC CONVERTER (RJ45 JACK)

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 color video signal up to 400m (1300ft).

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.

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.

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 Unshielded 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.

Applications

• 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

Features

• 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)
• 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

 

Specifications

Applied Devices	CCTV cameras, monitors, DVR, switchers, IP encoders, and other CCTV equipment
Video	Video Format	PAL, NTSC, SECAM
	Operating Frequency	DC to 5MHz
	Max Distance	UTP Category 5e (24AWG) Color: 400m (1300ft)  B&W: 600m (1950ft)
	Common-mode / Differential-mode rejection	15kHz to 5MHz 60dB typical
	Impedance	Coax, Male BNC 75Ω unbalanced
		UTP, two coax pigtail 100Ω balanced
	Attenuation	1.5dB Max typical
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	18Ω per 100m (52Ω per 1,000ft)
	Differential Capacitance	62 pF/m max (19 pF/ft max)
Power	No external power required to operate
	Power input/output	Input: 24-28VDC (At Receiver) / 1.5A Max Output: Regulated 12VDC (At Video Transmitter)
Connector	Video input/output	Male BNC connector
	Video input/output	8P8C (RJ45) Jack
Protection	Surge Protection	Renewable solid state surge protection
	Video Input	2KV(common mode), 10/700µs IEC6100-4-5/1955(GB/T 1726, 5-1999)
	Video Output	2KV(different mode), 10/700µs IEC6100-4-5/1955(GB/T 1726, 5-1999)
Mechanical	Housing	ABS engineering plastic
	Body Color	Black
	Dimensions (L*W*H)	65*36*25mm (BNC connector & cable excluded)
	Net Weight	65g
Environmental	Operating Temperature	-20°~ 70°C
	Relative Humidity	0~95% (non-condensing)
	Storage Temperature	-40°~ 150°C

 

 

Reference

Balun LEDs

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

Video and Power Balun wiring

	DOSS Video & Power Baluns	T568A	T568B
Pin 1	Video	White/Green	White/Orange
Pin 2	Video	Green	Orange
Pin 3	Power –	White/Orange	White/Green
Pin 4	Power –	Blue	Blue
Pin 5	Power –	White/Blue	White/Blue
Pin 6	Power +	Orange	Green
Pin 7	Power +	White/Brown	White/Brown
Pin 8	Power +	Brown	Brown

Power over Twisted Pair: Voltage Drop Reference

Transmission Distance	Transmission Voltage (Voltage Drop)
	12VDC/0.5A camera requirement	12VDC/1A camera requirement	12VDC/1.5A 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)