HD optical transmission fault how to solve

 

If the electrical signal is not received, the following steps are checked:

 

1 confirm that all the connections are correct, cable, cable and power are normal.

 

The power supply for all the devices is identified, including the optical transmitter and the optical receiver.

 

2 if the monitor screen, the optical fiber input from the receiver to disconnect, cable and power connections remain unchanged. Then proceed the following steps:

 

A. when the optical fiber is disconnected, if the monitor screen is a snowflake, the optical fiber is connected properly before the fiber is disconnected. A screen with snowflakes usually means that the receiver is working normally, but may not receive enough light signals. Connect the optical fiber to the. If the screen is black, it means that the carrier output of the transmitter can not be 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, then use a video cable to connect the signal source directly to the monitor. If the monitor works, replace the optical transmitter.

 

If B. in the fiber break condition, the monitor is still blank, you need to check and monitor all connected correctly. If all of the connections are not a problem, the other one is for a receiver or monitor.

 

3 if the video images have snow, the optical power of the receiver is detected by the optical power meter.

 

A. if the optical power meets the requirements of the receiver, the receiver may have a problem. Another receiver for a try. If you still can not solve the problem, and then another transmitter for a try.

 

B. if the receiver of the optical power below the calibration value, with the amount of light output from optical power meter and a piece of optical fiber jumper check transmitter. If the output meets the specification, it may be a problem for the optical fiber or optical connector. Clean the optical connector to confirm that the correct optical transmitter is selected according to the type and length of the optical fiber. If the light output is too low, then replace the transmitter.

 

4 if the video signal is good but no audio, then the connection is correct. The problem appears in the audio signal not connected properly or there is no suitable resistance. Check all of the above information is correct. If you can not solve the problem, then contact the manufacturers to replace equipment.

 

If the power HD transmitter normal, but can not work, then the following steps:

 

The A. monitor screen, data and camera control function.

 

1 from the optical fiber pull out. If the screen is no longer black but there is snow, then the light connection may be good.

 

2 ensure that the transmitter between the video BNC connection is intact.

 

B. monitor screen has snow (noise), data and camera control function normal. This is a part of the problem. Continue to follow the following steps:

 

1 from the transmitter optical fiber pull into a fiber jumper.

 

The other end of the 2 jumper insertion optical power meter.

 

A. if the reading and the index does not match, the transmitter has a problem, should be replaced.

 

B. if the readings are in accordance with the specifications, then the next step.

 

3 check connector. If dirty, wipe with a clean alcohol.

 

4 of the original fiber and the optical access transmitter. At the receiver, perform the above second to third steps. At least the minimum calibration value of the input energy of the receiver is achieved by the optical power meter reading.

 

A. if the reading is slightly lower, the fiber may have problems, should be replaced.

 

B. if the reading is very low, the cable may be damaged, to replace.

 

C. if the reading is normal, the receiver has a problem, should be replaced.

 

C. video normal but camera control problem. This shows that fiber is good. When the fiber attenuation increases, video loss will be greater than the loss of the PTZ control data.

 

1 before the control signal transmission platform, check the receiver on the TD (data LED indicator). When data is transmitted, the indicator light is always on, or you are following your operation. If this is not the way, and there is no problem with the electrical connection, the receiver may have a problem and need to be replaced.

 

. when the PTZ control signals are sent to and fiber connection at the other end, transmitter, RD indicator light, or is to follow your operation and flashing, and is electrically connected correctly, but camera control is still not working properly, transmitter has a problem, should be replaced. If the RD indicator light is not bright, there may be a problem with the transmitter, it may be a problem for the receiver. Contact the manufacturer for further guidance.