1ch Active UTP CCTV Video Receiver (VB300R)
1ch Active UTP CCTV Video Receiver / Active Video Balun VB300RDescription:The VB300R 1ch active UTP video receiver receives balanced signal to convert it into unbalanced signal and raises the received signal with perfect receiving effect,Website:, which can be applied in the occasions such as video monitoring and video meeting. It can simplify the wiring project and save wire use quantity.Features:1. Adopt differential signal transmission with excellent anti-jamming ability2. Save project wire expenses, each a pair of twisted pair wire transmits one channel of video signal and one common Cat-5 unshielded twisted pair wire can simultaneously transmit four channels of video signal3. The farthest transmission distance will be 900m if it is used with passive transceiver and the farthest transmission distance can reach 1200m if it is used with active transmitter 4. Outstanding interference rejection, transient protection5. "Press-Fit" terminal block6. Two video outputs for DVR and LCD7. ABS plastic caseTechnical specifications:1ch Active UTP CCTV Video Receiver (Active Video Balun VB300R)Video FormatNTSC, PAL, and SECAM Frequency ResponseDC to 5MHzAttenuation0.5dB typCMRR60 dB ImpedanceCoax, Male BNC75 ohms RJ45/Terminal Block100 ohmsWorking environmentWorking Temperature-10℃ to +70℃ Storage Temperature-30℃ to +70℃Humidity 0 to 95%Wire TypeUTP5Connector2*Male BNC and "Press-Fit" terminal blocksPower12VDCCaseMetalType of the required wire:Unshielded Cat-5 or above twisted pair wire (Please use standard Cat-5 or above twisted pair wire. The wire quality will directly affect the transmitted image effect and transmission distance.)Characteristic impedance:100Ω±20ΩDC loop resistance: 18Ω/100mDifferential capacitance: 62pf/m (maximum)Connection method:Connect the two-color wires of a pair of Cat-5 unshielded twisted pair wire to the '+’ terminal of the green socket and connect the single-color wires to the '-’ terminal of the green socket. Connect the BNC interface of the transmitter to the BNC interface of the camera. If there is any joint in the circuit, please adopt welding method or special junction box to ensure perfect contact at the joint. Adjusting method:Adjust "BRIGHTNESS" knob to adjust the image brightness, then adjust "SHARPNESS" dial switch to compensate the image sharpness and color. The compensation size in turn is 1 as minimum and 4 as maximum. Pressing dial switch shows the compensation of this position is turned on. Next or multiple switches can be pressed according to the requirements. The four dial switches can compose 16 compensation values (as shown in the following figure) to meet the requirements of different transmission distancesFrequently Asked QuestionsWhy does my video look like a scrambled Cable TV signal?This typically indicates reversed polarity. Can shielded twisted pair be used?Some customers have successfully used shielded wire up to a few hundred feet. However we does not recommend it. Its high-frequency roll-off will severely degrade the distance performance. Can Category 6 wire be used?Yes. Unshielded Twisted Pair wire, Category 5 or better, can be used with UTP video transceiver.Can I transmit more than one video signal in a multi-pair wire bundle?Yes. One of the benefits of using UTP video transceivers is interference rejection. UTP video signals can reside in the same wire bundle as multiple video signals, ringing teles, Ethernet, low voltage power, RS-422, RS-485, etc.Application Diagram
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