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Omvandlare, RS-232 – RS-422/485

Converter, RS-232 – RS-422/485

RS-232 – RS-422/485 Wandler

INSTALLATIONSANVISNING

INSTALLATION MANUAL

INSTALLATIONS ANLEITUNG

6045-2001

www.westermo.se

©

Westermo 

Teleindustri 

AB 

• 

2001 

• 

REV. 

A

Galvanic

Isolation

Transient

Protection

Balanced

Transmission

CE

Approved

MA-45 

AC

MA-45 

DC

Содержание MA-45 AC

Страница 1: ...485 RS 232 RS 422 485 Wandler INSTALLATIONSANVISNING INSTALLATION MANUAL INSTALLATIONS ANLEITUNG 6045 2001 www westermo se Westermo Teleindustri AB 2001 REV A Galvanic Isolation Transient Protection...

Страница 2: ...voltage protection Mains Breakdown voltage 440 V at 230 V AC and 220 V at 115 V AC Interface 2 Breakdown voltage transmitter and receiver 7 V Surge capacity 0 6 kW for 1ms Power supply Switchable 115...

Страница 3: ...4 ON OFF S1 S2 1 8 DANGER DO NOT OPEN CONNECTED UNIT 1 2 3 4 5 V 24 RS 232 C CONNECTION LINE CONNECTION Switch settings The MA 45 can through different switch settings be adapted to a variety of runni...

Страница 4: ...1 2 3 4 ON 1 2 3 4 The fail safe function forces the signal state of the receiver to OFF when the connected transmitter is in tri state transmitter inactive The receiver located furthest away shall b...

Страница 5: ...ction Connection ITU T V 24 Signal name Code I 2 103 TD Transmitted data O 3 104 RD Received Data I 4 105 RTS Request To Send O 5 106 CTS Clear To Send O 6 107 DSR Data Set Ready 7 102 SG Signal Groun...

Страница 6: ...ted pairs A B A B Transmitter Receiver MA 45 Receiver Transmitter Shield 1 1 2 3 4 5 3 4 5 A A B B Transmitter Receiver A A B B MA 45 Transmitter Receiver 2 wire 4 wire Twisted pairs RS 422 equipment...

Страница 7: ...ver on the master unit and the final bus slave unit See diagrams for details of how this is done with RS 485 2 wire and RS 422 4 wire The line transmitter used in the MA 45 is activated by data receiv...

Страница 8: ...l sales westermo co uk Web www westermo co uk Westermo Data Communications GmbH Goethestra e 67 68753 Wagh usel Tel 49 0 7254 95400 0 Fax 49 0 7254 95400 9 E Mail info westermo de Web www westermo de...

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