CTI Products MCN Server 8000 - Manual (Page 176)

Advanced Configuration Configuring Master-Sub Comparator Systems
176 68-12286-110
Multi-Bit Mask
There may be times in which you need multiple bits from a master device to be passed to a sub device.
The following table illustrates how to do this.
If, for example, you wanted to pass the "Rx" and the "Vote" bits from the Master comparator to the Sub
Comparator, you would set the mask as shown:
Master Bits Steer Rx Dis Vote Fail
Mask 0 1 0 1 0
Masked Rx Vote
Compressed
& Shifted Rx Vote
Nudged (5) Master
Rx
Master
Vote
Sub
Comparator
Bits Master
Rx
Master
Vote
Steer Rx Dis Vote Fail
For Multi-Bit Master-Sub Comparator, the MCNRCD program processes the bits from the Master
comparator as shown above:
1. Both the "Rx" and "Vote bits have a "1" bit set.
2. The "Rx" & "Vote" bits are compressed (unused bits are deleted) and shifted to the right to fill the
Least Significant Bits (right hand bits)
3. The Compressed & Shifted Bits will be nudged to the left by the number specified in the "Nudge"
field. (5 in this case)
4. The Nudged bits are passed to all the receivers in the Sub Comparators.
(Note that this is just an example of what could be done with multiple bits to show how multiple bits are
handled.)
Inherited bits "Native" bits from Sub Comparator CIB