BU-63147 and BU-63149 MIL-STD-1553 DATA BUS +5V TR.
BU-63149 - (BU-63147 / BU-63149) MIL-STD-1553 Data Bus +5V Transceiver
BU-63147 - (BU-63147 / BU-63149) MIL-STD-1553 Data Bus +5V Transceiver