The selection and setting of recording and playback equipment shall meet the following requirements:


1. Digital video recording equipment should be selected, and it should have tamper proof function; its storage capacity and playback image quality should be improved


(and sound) quality should meet the relevant standards and management requirements.


2. In the same system, the specifications of video tape recorder and recording medium should be consistent.


3. The video recording equipment shall have linkage interface.


4. When recording sound while recording video, the recording equipment shall be able to record image and sound synchronously, and


It can be played back synchronously.

5. The image recording, query and retrieval equipment should be set in the position easy to operate.