Figure 6

Masterframe:64 Mainframes (2.048 sec)
Mainframe:128 8-bit words (32 millisec)
ECOM-721:1 word/millisec
32 words/mainframe
2048 words/masterframe

word 111 is spacecraft subframe 6, it has the ECOM analog and bilevel monitors subcommutated within itself

During integration at BBRC:
Word: 16mainframe counter, 0-63
Word 59:all ONE's
Word 60:all ZERO's