hikvision accessories

Hi everyone, We moved into a house with this system. After a visit by an electrician who installed some new cables (theoretically not involved with the Hikvision system) I found it wasn't online. I connected some cables but I can't get all cameras online at the same time. Here's what I see: *...

HikVision accessory compatibility can be confirmed by looking-up your cameras and brackets in the attached spreadsheet. Please note there are multiple tabs to select from along the bottom.