DOTECH AX7241 Manual - Página 3

Procurar online ou descarregar pdf Manual para Conversor de multimédia DOTECH AX7241. DOTECH AX7241 11 páginas. Usb to rs485 rs485 signal converter

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USB
RS485
RS485 Signal Converter AX7241 Manual
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- Illustration of terminating resistance processing
Good method : termination resistors processing at both each end of line
Unit #1
No Good method : termination resistors processing in the middle of line
Unit #1
It can be weak on noise
- Proper wiring of RS485 line
HOST RS485
* Tip
Line connection method that branches line from No.1 starting from Master, to No.2 Client
starting from Master, and connect to No.3 Client branching again from No.2 is good for
noise and improving flowing status of signal. Otherwise, method that all Clients are
branched from Host may scatter the following situation of signal and it is no good for
debugging in some cases when produced problem.
02
termination r esistance
Unit # 2
termination r esistance
termination r esistance
Unit # 2
termination r esistance
Unit # 3
Unit # 3
It can be weak on noise
Client RS485
Client RS485
Client RS485
Client RS485
Unit # N
Unit # N