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● 3-wire system RS-485 connection diagram
Handling Precautions
In the 3-wire system, the CMC10L001A000 can be used as a converter in
the master station.
Attach 1/2W or greater terminating resistances of 150Ω ±5% at each end of the
communications lines. Ground the shield FGs at one end in one location, not at
both ends.
When only three RS-485 terminals are provided, the areas designated with an
asterisk (*) are connected internally.
Handling Precautions
Be sure to connect SG terminals each other.
Failure to do so might cause unstable communications.
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