Hikvision DS-7604NI-M1/4P User Manual

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24.3.6 Why is image geng stuck when playing back by single or mul-channel

cameras?

Reason

HDD read/write excepon.

Soluon

Export the video, and play it with other devices. If it plays normally on other device, change your

HDD, and try again.

24.3.7 Why is the device not able to control PTZ camera via coaxitron?

Reason

1. The camera does not support coaxitron.

2. The coaxitron protocol is incorrect.

3. The signal is aected by video opcal transceiver.

Soluon

1. Ensure the video input signal is HDTVI, and the camera supports coaxitron.

2. Ensure coaxitron protocol parameters are correct, such as baud rate and address.

3. Remove the video opcal transceiver, and try again.

24.3.8 Why does the PTZ seem unresponsive via RS-485?

Reason

1. The RS-485 cable is not properly connected.

2. The RS-485 interface is broken.

3. The control protocol is not correct.

Soluon

1. Check if RS-485 cable is properly connected.

2. Change RS-485 interface, and try again.

3. Ensure control protocol is Pelco.

24.3.9 Why is the video sound quality not good?

Network Video Recorder User Manual

105

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Hikvision DS-7604NI-M1/4P 4-ch 1U 4K NVR