For the Passenger Information System (PIS) of tramcars that need to transmit video signals and power supply simultaneously, which connector should be selected?

A: M12 D-code all-in-one connectors (8~12Pin) are recommended. Among them, 4Pins are used for transmitting 1080P video signals (compatible with the transmission protocol of the PIS system), and the remaining pins can meet the power supply demand of 5~10A. This series has an IP67 protection rating and anti-vibration of 10g, adapting to the complex outdoor operating environment of tramcars. The shielding effectiveness is ≥85dB, which can effectively avoid video signal interference and ensure clear and stable images. At the same time, it supports quick plugging and unplugging, facilitating later equipment maintenance.