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Q:2 [YJV22-4 * 185] - Does the SC150-FC represent two cables for the same tube?
You also know that is not in line with the norms, but the problem is not so serious, if you want to change, plus a line tube, the best joints with waterproof tape wrapped around, do not want to change, the waterproof tape wrapped around will not have any problems of
Q:Great Wall L223 monitor can link TV set-top box baa
connected to a good line, check the line There is no tight; the monitor and set-top boxes, TV box power is turned on; and then switch the signal input to VGA mode; you can watch the TV program
Q:Watching TV series suddenly no signal, and nothing gone
Possible reasons: . if the TV screen appears the set-top box to start the image and then prompt "no signal" situation, this phenomenon proves that the set-top box and the TV between the audio and video lines (red, yellow, white) connection basically no problem. But the TV radio frequency input signal line (note: not the yellow and white that three) did not receive the set-top box RF input port, or TV RF input signal line and the wall is not connected to the terminal box, or in the room where there are other open circuit. . if the TV screen does not appear set-top box to start the image, then just the blue screen and no text prompts, then there is a TV channel settings problems, please use the TV remote control by source or AV / TV Key, the TV from the analog TV channel can be converted to video channels. . if the digital TV top box does not work, the TV shows no signal, first check the set-top box before the power light does not shine, if not bright, please check the set-top box power plug is not plugged (to ensure that the socket has electricity) or check the set-top box switch turn on.
Q:Who knows the patch panel and telephone exchange related knowledge, how should I pass the telephone line, the two devices connected, for example.
Hello: - ★ . first exclude the video signal line and the power line between the interference. Because the AC power supply interference, the screen shows the 50Hz scroll bar, not a big stripes interference, and interference only appears in the fault elevator screen. - . irregular, very large stripes interference, should be bad contact reaction, 12V power cord (including 220V primary side), video cable bad contact, there will be such a phenomenon. - . "replaced by a centralized power supply, 12V electric elevator and 220V electric elevator anti-interference is the same?" ... ... regardless of 220V power supply, or 12V models power supply, the effect not much differences. Elevator of the camera are 220V transformer power supply, are placed at the top of the car. Other camera normal, it should focus on checking the cause of the fault camera itself.
Q:Can the ground wire be laid out with the power cord If so, will not interfere with them? If it can not, how should lay it?
Analogy, wiring between the ribs, weak wells are spine The terminal point over the line pulled to the engine room after the need to play patch panels, front panel is RJ45 interface, followed by the module port The terminal came over the line on the back of the module Positive RJ45 connected to the general network cable to the switch, so that all terminal points through the switch connected together to form a local area network Router is in the switch above, the switch connected to the router, the router connected to the external network, so that the LAN computer can connect the external network Next time to remember to point points Or no one would like to answer your question
Q:Lenovo notebook computer press the boot button only after the keyboard light, the screen does not respond, boot lights also
Duckbill jumper is a voice jumper, generally there are three connectors: 110 head, RJ11 head, RJ45 head.
Q:Under the buried pipe will affect the sound of tiles?
Hello, what is the brand, is the Daikin VRV general requirements are not high, if there is no other line, you can use the control cable, but the standard is the 2-pin signal line, you need not need to shield the main use of the environment is generally 0.75 wire diameter. The main can not go with the strong power, or will be disturbed.
Q:How does the SDH device connect to the DDF patch panel?
How to use wire and cable and precautions ⒈ wire and cable type selection of wire and cable, to consider the use, laying conditions and safety; according to the use of different power cables can be used, overhead insulated cables, control cables, etc
Q:My computer always shows the network cable is not plugged in?
Can use. Concrete is not used, straight nail is used to decorate wood sheet. Pneumatic nail gun works: nail gun is formed by the gun body and clip clip combination.
Q:On both sides are plug the power cable! The Help
Depends on the size of the current, if the line is very small, will soon be burned, not the fire, if not burned on the dangerous.