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FO MM to RS232 & RS485 STAR COUPLER

(TYPE CMU100 / 2.6.1.5-2.x & 2.6.2.5-2.x)

DESCRIPTION

Star coulpler is communication device that transfer data from one (master) to more than one

port. Example is when we need access to one device with several PCs. With CMU system we

can have one master and up to seven slave ports. Data is send from master port to all slave

ports. On the other hand data from either slave port is send to master port only.

Communication node is device that transfers data from either port to all other ports.

All mentioned types of CMU100 devices can operate as star coupler or communiction node.

TYPICAL APPLICATION

SOFTWARE DESCRIPTION

This software version (2.x) allows two modes of operations:



star coupler with one master and two slave ports

Master device (for example IED) is connected to CMU to master port (1). Other two

CMU ports are slave ports (2,3) (connected for example to PCs) .

Data flows from port 1 to ports 2 and 3. On return data flows from 2 or 3 port to port 1

only.



simple three port communication node.

Data flows from any port to other two ports.

Picture 2: CMU100 / 2.6.1.5-2.x & 2.6.2.5-2.x star coupler typical application

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Ediseja 21 CMU 200 Manuel d'utilisateur Page 7