1553-1-CPCI CPCI,1M,one channel, Full Function, MIL-STD-1553B interface cards;
1553-2-CPCI CPCI,1M,two channels, Full Function, MIL-STD-1553B interface cards;
1553-3-CPCI CPCI,1M,three channels, Full Function, MIL-STD-1553B interface cards;
1553-4-CPCI CPCI,1M,four channels, Full Function, MIL-STD-1553B interface cards