Train Surveillance System Recommendations

We have a request for installing a surveillance system inside trains.

Can we get a recommendation for a right solution including cameras DVRs/VMS, communication links.

Selecting the right solution for your application is going to require a bit more information than what has been provided.

That said, depending on the application specifics such as type of train deployment, geographical location, jurisdiction and hardware requirements based on system performance specification you may want to start by determining if your solution is required to be EN50155 compliant.