In recent years, with the changes in the demand of the security market, the technological innovation and product transformation of video optical transceivers have shown greater applicability: (1) In order to meet the needs of highway field monitoring, cascaded optical transceivers replace traditional ones. A large number of point-to-point optical transceivers; (2) In order to meet the application of three or four levels of networking, single-fiber transmission of two-way video, audio, data, telephone, E1, Ethernet and other multi-functional optical transceivers came into being. The three major problems of the optical transceiver are confirmed as follows:
First, the electrical signal can not be received normally. First confirm that all connections are correct, and then confirm that all equipment is powered. After confirming the above two points, if the monitor is still black, disconnect the fiber input from the receiver and the cable and power connections remain unchanged. When the fiber is disconnected, if the monitor screen is a snowflake, the optical connection of the fiber is normal before the fiber is disconnected. A screen with snowflakes usually means that the receiver is working properly, but may not receive a sufficient amount of light. Reconnect the fibers. If the screen turns black again, the transmitter's carrier output cannot be frequency modulated (that is, there is no video input signal) or the transmitter itself has a problem. Check the video input process on the transmitter: disconnect the signal source from the optical transmitter and connect the signal source directly to the monitor with a video cable. If the monitor is working, replace the optical transmitter. If the monitor is still black with the fiber disconnected, you need to check that all connections to the monitor are correct. If all the connections are ok, try another receiver or monitor. If the video image has snowflakes, an optical power meter is used to detect the optical power entering the receiver. If the optical power meets the receiver requirements, the receiver may have a problem. Try another receiver. If you still can't solve the problem, try another transmitter. If the optical power of the receiver is below the calibration value, check the light output of the transmitter with an optical power meter and a fiber jumper. If the output meets the specifications, there may be a problem with the fiber or optical connector. Wipe the optical connector clean and verify that the correct optical transmitter has been selected based on the type of fiber and the length of the connection. If the light output is still too low, replace the transmitter. Second, the power supply is normal, but it can't work normally. If the monitor is black, the data and camera control functions are normal. The fiber can be unplugged from the optical port. If the screen is no longer black but has snowflakes, the optical connection may be good. Please confirm that the video BNC connection between the optical transceivers is intact. If the monitor screen has snowflakes (noise), the data and camera controls are functioning properly. This situation indicates that there is a problem with the light part. Unplug the fiber from the optical port of the transmitter, insert a fiber jumper, and plug the other end of the jumper into the optical power meter. If the reading does not match the indicator, the transmitter has a problem and should be replaced. If the reading meets the specifications, check the connector and if it is dirty, wipe it off with isopropyl alcohol. Reconnect the original fiber to the optical port of the transmitter. At the receiver side, the above operation is also performed. The reading of the optical power meter must be at least the minimum calibration of the input energy of the receiver. If the reading is slightly lower, the fiber may be defective and should be replaced. If the reading is very low, the cable may be damaged and replaced. If the reading is normal, the receiver has a problem and should be replaced. Third, the camera control problem This shows that the fiber is good. When the fiber attenuation increases, the loss of video will be greater than the loss of control data of the gimbal. Check the TD (Data Activity) LED on the receiver before transmitting the PTZ control signal. The normal situation is when the data is transmitted, the indicator light is always on, or the RD indicator light is always on, or follow you when you send the control signal of the gimbal to the other end of the fiber-connector. The operation flashes and the electrical connection is correct, but the camera control still does not work properly, indicating that the transmitter has a problem and should be replaced. If the RD indicator is off, there may be a problem with the transmitter or a problem with the receiver.
Lock Motor product introduction:
Safe Lock Motor, also known as The anti-theft lock motor, in the field of electronic Lock technology, Safe Lock Motor is a mechanical Lock components associated with the electronic control unit of the important parts.
Functions: it is widely used in various intelligent locks, such as Shared bicycle lock, fingerprint lock, glass lock, safe lock, hotel lock, family lock, inductive smart lock, etc
Features: Motor For Safe Lock is based on micro precision reducer development, small intelligent micro precision reducer can do 10 mm in diameter, is widely used in safe, locks, smart locks, sensor intelligent lock;
This kind of motor has the characteristics of low noise, low energy consumption, small volume, light quality, high precision, large torque and durability
Method of use: the best stable in horizontal plane, installed on the Safe Lock Motor output shaft parts, cannot use a hammer to knock, knock prone to press into the dc Safe Lock Motor drive, may cause damage to internal components, and cannot be used in the case of blocked.
Operating temperature range:
Gear Motor For Safe Lock should be used at a temperature of -10~60℃.
The figures stated in the catalog specifications are based on use at ordinary room temperature catalog specifications re based on use at ordinary room temperature (approximately20~25℃.
If a Safe Lock Motor is used outside the prescribed temperature range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.Depending on the temperature conditions ,it may be possible to deal with them by changing the grease of the motor's parts.Please feel free to consult with us about this.
Storage temperature range:
Gear Motor For Safe Lock should be stored ta a temperature of -15~65℃.
In case of storage outside this range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.
Service life:
The longevity of Dc Motor For Safe Lock is greatly affected by the load conditions , the mode of operation,the environment of use ,etc.Therefore,it is necessary to check the conditions under which the product will actually be used .The following conditions will have a negative effect on longevity.Please consult with us should any of them apply.
â—Use with a load that exceeds the rated torque
â—Frequent starting
â—Momentary reversals of turning direction
â—Impact loads
â—Long-term continuous operation
â—Forced turning using the output shaft
â—Use in which the permitted overhang load or the permitted thrust load is exceeded
â—A pulse drive ,e.g.,a short break,counter electromotive force,PWM control
â—Use of a voltage that is nonstandard as regards the rated voltage
â—Use outside the prescribed temperature or relative-humidity range,or in a special environment.
â—Please consult with us about these or any other conditions of use that may apply,so that we can be sure that you select the most appropriate model.
when it come to volume production,we're a major player as well .each month,we rurn out 600000 units,all of which are compliant with the rohs directive.Have any questions or special needed, please contact us, we have the engineer group and best sales department to service to you
Looking forward to your inquiry. Welcome to our factory.
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Shenzhen Shunchang Motor Co., LTD. , https://www.scgearmotor.com