Circutor CEM-M-RS-485 Manuel d'utilisateur télécharger pdf (Page 10)

3.4.- CONNECTION DIAGRAM

The RS-485 cable must be made up of a twisted pair cable with a braided shield with a

maximum distance of 1,200 metres between the CEM M-RS485 and the master unit.

A maximum of 32 units can be connected to this bus.

Use an intelligent RS-232 to RS-485 network protocol converter to establish communications

with the master unit.

B(-)A(+)

RS-485

CEM M-RS485

Alimentación

Power Supply

A(+) B(-)

RS-232 / USB / Ethernet / Profibus ...

RS-485

RS-232

USB

Ethernet

Profibus

...

Figure 4: CEM M-RS485 connection diagram�

CEM M-RS485

Instruction Manual

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Circutor CEM-M-RS-485 Manuel d'utilisateur Page 10