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Field Wiring
Applications
16 Point Multiplex Modules—Multiplex Binary
Six kinds of applications that input to the XBN are described on the
following pages. Three common applications connect to the XBN without
alteration to the circuit:
devices wired across a load
devices wired across non-grounded (dry) contacts
devices in contact mode with open inputs and one side grounded
Three other applications require a small modification before connecting to
the function module because unloaded XBN voltage inputs are sensitive to
noise, especially when one of the input lines is earth grounded. This noise
results in faulty readings.
unpowered triac or SCR contact
high powered (>1 amp) non-wiping contact
neon lamp applications
Wiring methods for each of the six applications are shown on the
following pages.
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