testing active-low data-rails 
should be able to log channels 
X : 1x~1of2 off > channel-test-f-06-X.log
	count: 0, unknowns: 0
X : 1x~1of2 off > channel-test-f-06-X.log
	count: 1, unknowns: 0
X : 1x~1of2 off > channel-test-f-06-X.log
	count: 0, unknowns: 0
X : 1x~1of2 off
	count: 0, unknowns: 0
# log for channel: X
0
0
1
1
0
