Rs485 Connection Method; Follow The Features To Get Started - Ebyte E830-DTU(2R2-433L)-V8 User Manual

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2.1.3 RS485 connection method

In RS485 communication, attention should be paid to A, B line matching, if the communication is found to be abnormal, add 120R
matching resistor between A and B lines.

2.2 Follow the features to get started

Prepare the two E830-DTUs (2R2-433L)-V8 labeled Device A and Device B respectively, ensure that their parameters are the
same (factory default parameters are enough), configure Device A as the transmitter and Device B as the receiver, and
back on to take effect after changing the
(Note: E830-DTU(2R2-433L) and
the two.) The following function can only be implemented between E830-DTU(2R2-433L)-V8. )
Device A transmitter: M1M0=10
Device B receiver: M1M0=01
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mode.
E830-DTU(2R2-433L)-V8 cannot establish communication and follow function between
E830-DTU(2R2-433L)-V8 User Manual
need to power
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