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MMINTBCONV

INTELLIGENT RS232/RS485 BOXED CONVERTER

         

The intelligent boxed converter has been designed to convert RS232 signals from a PC or PLC to RS485. The advantage of using this module is that all network timing on the 2 wire network is performed by the module. Only three wires, the RX line, TX line and ground are required. 

The intelligent converter also provides isolation between the RS232 and RS485 cables. This prevents ground loops between the PC or PLC and network.

 

SPECIFICATIONS

Power Supply:      200 - 260VAC @ 1.5VA

RS232:                  3 Wire - TX/Rx/GND

RS485:                  2 Wire Multidrop twisted

Baud Rate:           4800, 9600, 14400, 19200, 28800, 38400, 57600.

Connector:           RS232  -  DB-9 connector.
                           RS485  -  3 Way Screw connector.

 

WIRING

 

 

SWITCH SETTINGS 

SWITCH

FUNCTION

DESCRIPTION

 

 

 

1

BAUD

Baud rate selection.

2

BAUD

"

3

BAUD

"

4

TIMEOUT

When this switch is off the RS485 TX/RX timeout is short. When this switch is on the timeout is extended for devices which have longer response times.

 

 

BAUD

ON

OFF

 

 

 

9600

-

S1/S2/S3

4800

S1

S2/S3

14400

S2

S1/S3

19200

S1/S2

S3

28800

S3

S1/S2

38400

S1/S3

S2

57600

S2/S3

S1

 

 

 

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