• Fr4 pcb for Amplifier device module

Amplifier device module as an embedded serial port networking module, it is provided to users for system networking. The module provides up to three standard TTL level serial ports. When the user equipment is connected to the network, the extended audio function can provide more value-added applications, such as: on-site help, center broadcast notification, etc.

The computer in the service center can manage the user's equipment through the network, and can also play background music, notifications, and on-site intercommunication according to requirements.

Scope of application: Suitable for canteen charging system, attendance access control system, hotel room control system, mine monitoring, computer room monitoring and many other application fields.