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 BC041 OMS VME58 Limits Filter
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The BC-041 Limits filter is a small low-pass filter circuit integrated
into a dip-socket.  This socket can be easily installed beneath the
OMS58's limit switch PALs, putting filtering as close as possible to the
circuitry that reads their state.  This solution was developed for
extremely noisy situations where the limit switch caps on the transition
board were not enough to stop spurious limit switch trips.  This situation
has occurred when some (very noisy) chopper drives are used, and has been
solved with this filter.

Socket|Axis| #
------|----|---
U14   |X&Y |1&2
U13   |Z&T |3&4
U36   |U&V |5&6
U15   |R&S |7&8