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Summary of Contents for Westermo MA-42 AC
- Page 1 INSTALLATIONSANVISNING INSTALLATION MANUAL INSTALLATIONS ANLEITUNG 6042-2002 Galvanic Transient Balanced Isolation Protection Transmission Approved Omvandlare RS-232 – RS-422/485 Converter RS-232 – RS-422/485 RS-232 – RS-422/485 Wandler www.westermo.se...
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Page 2: Specifications
Specifications Transmission Asynchronous, full/half duplex or simplex Interface 1 EIA RS-232-C/RS-423-A CCITT V.24/V.10 25-position D-sub female, DCE Interface 2 EIA RS-422/RS-485/CCITT V.11 Data rate Up to 115,2 kbit/s Indicators Power, RD, DCD, CTS, RTS, TD Insulation Galvanic insulation with opto-coupler (data transmission) and transformer (supply) Insulation voltage 1500V... -
Page 3: Factory Settings
S1 Selection of power supply 115V/230V AC S2 Selection of signal activating the transmitter Selection of signal controlling DCD Selection of CTS delay S3 Selection of termination with fail-safe 1) Selection of 2- or 4-wire communication 1 - 6 1 - 6 CTS-delay Transmitter Transmitter... -
Page 4: Line Connection
Connections Line connection Terminal connection (DCE) (5-position screw-terminal) (RS-232-C/V.24, 25-Position D-sub, female) CCITT V.11 Direction 1) Pin CCITT V.24 Direction Description Description Circuit number Receiver A’ R+ TD/Transmitted Data RD/Received Data Receiver B’ R– RTS/Request To Send Transmitter A T+ CTS/Clear To Send Transmitter B T–... - Page 5 Power supply 12–36V DC Power consumption: Max 2W Insulation: 1000V Fuse F1: 1.6A fast 5x20 mm All other specifications according to MA-42 AC Switch settings According to MA-42 AC Connections According to MA-42 AC, except power supply Power Connection POWER LINE V.24/RS-232-C...
- Page 6 RS-422/485 was designed for multidrop applications. When a system is installed it should form a bus structure (see diagrams). Star shaped networks should never be created, there are other Westermo products designed to work in star net applications. For correct installation an RS-422/485 network should be terminated at the correct points.
- Page 7 Max 1200 metres Shortest possible max 0.3 metres Termination Max 32 connections Termination Max 32 connections 6042-2002...
- Page 8 Westermo Teleindustri AB have distributors in several countries, contact us for further information. Westermo Teleindustri AB • S-640 40 Stora Sundby, Sweden Phone +46 16 42 80 00 Fax +46 16 42 80 01 E-mail: info@westermo.se • Westermo Web site: www.westermo.se...
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