ARINC 429 Interface board with 6 TX and 6 RX channels
DNx-429-566
Dual Channel MIL-STD-1553 interface board
DNx-1553-553
4-port, RS-232/422/485 serial communications board
DNx-SL-501
8-Port RS-232/485 Serial Communications Interface
DNx-508-892
4-port, synchronous serial communications, HDLC, and SDLC protocol support
DNx-SL-504