Description
The use of differential signal transmission, excellent anti-jamming capability, saving engineering cable costs, each pair of twisted pair transmission of a video signal, an ordinary five unshielded twisted-pair can transmit four video signals, passive send with no The source receiving farthest transmitted video signal 330m is used in conjunction with the active receiver, farthest transmitting the video signal 1500m. Plug and play, no power, built-in transient suppression protection.
Technical Specifications:
Frequency response DC-8MHZ
Common Mode Rejection Ratio
Impedance: BNC 75Ω, RJ45 100Ω
Operating temperature: -10 ℃ -70 ℃
Storage temperature: -30 ℃ -70 ℃
For NTSC, PAL, SECAM, CCIR standard
Overall dimensions: 105mm * 58mm * 29mm (excluding BNC)
YJS-8104TR-4 four-channel passive twisted pair transmitter instructions
Four-way passive twisted pair transceiver is the video signal is converted to suitable for ordinary five unshielded twisted-pair transmission of balanced signals, transmission effect, can be used in video surveillance, video conferencing and other occasions, at the same time in An eight-core five twisted pair transmission four video signals, simplify wiring projects, saving wire consumption.
Required wire type:
Unshielded five or more twisted pair (use the standard five or more twisted pair, the quality of wire will directly affect the image transmission effect and transmission distance.)
Characteristic impedance: 100Ω ± 20Ω
DC loop resistance: 18Ω / 100 meters
Differential capacitance: 62pf / m (max)
Wiring method:
(Refer to the following figure), then connected to the RJ45 side of the transmitter, one end of the coaxial cable is connected to one end of the unshielded twisted-pair cable in the order of TIA / EIA-568B. BNC transmitter BNC female, and the other end connected to the front-end camera or back-end video, display device.
Common problems and solutions:
1. Scroll up and down the screen, can not see the image Solution: Check the same color at both ends of the line is connected to the same polarity of the transceiver port.
2. The image has twill interference? Solution: Please check whether the terminal is in good contact with the terminal position of the terminal box connection or tin welding, and wrap the connector with insulating plastic.
3. Is it possible to connect with telephone lines, data lines, and power harnesses? A: Yes, but the supply voltage must be DC36V, AC28V the following, and high-voltage cable can not be with the beam together.
4. Can I use shielded twisted pair? A: No, this product is designed for unshielded twisted pair, if not only the use of shielded twisted-pair construction cost, and will affect the transmission distance and transmission.