FN-DVT Series Digital Video Optical Receiver Card is a full digital video high speed optical transmission product.
 

DVT-R40-C can synchronously receive maximum 4 channel broadcasting level positive video signal, 1 channel RS485 signal, 1 channel Ethernet signal (optional) and support local network management.
 

It is used in conjunction with desktop Video Optical Transmitter DVT-T80 or DVT-TM10, DVT-M80.