The DNA/DNR/DNF-429-516-024 are ARINC 429 communications interfaces for UEI’s popular “Cube” / RACKtangle / FLATRACK I/O chassis respectively. The DNx-429-516-024 offers 16 TX/RX channels and 8 dedicated RX channels. (The 8 dedicated RX channels are a new feature and are available on “-024” designated boards) The TX drivers on the TX/RX channels can be disabled on a channel-by-channel basis. To use a TX/RX channel as RX simply disable the TX driver on that channel.