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Summary of Contents for Westermo MA-12 AC
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Page 1: Installation Manual
INSTALLATIONSANVISNING INSTALLATION MANUAL INSTALLATIONS ANLEITUNG 6012-2001 Balanced Galavanic Transient Transmission Approved Isolation Protection Korthållsmodem Short haul modem Kurzstreckenmodem www.westermo.se... - Page 2 Specifications MA-12 Transmission Asynchronous, full/half duplex or simplex Interface 1 EIA RS-232-C/CCITT V.24/V.28 25-position D-sub female, DCE Interface 2 ±10mA balanced current loop Data rate Up to 38 400 bit/s Indicators Power, RD, DCD, RTS, TD Isolation Galvanic insulation with opto-coupler (data transmission) and transformer (supply) Insulation voltage 1500V...
- Page 3 Switch settings MA-12 The MA-12 can through different switch settings be adapted to a variety of running con- ditions. To set the switches, open the plastic case by placing and turning a screw-driver between top and bottom at the rear of the case. Danger! Do not open connected unit LINE V.24/RS-232-C...
- Page 4 Connections Line connections (5-pos. screw-terminal) Direction Description Receiver Receiver R– Transmitter Transmitter T– Shield Terminal connection (DCE) (RS-232-C/V.24/V.28, 25-position D-sub, female) Direction 1) CCITT V.24 Description Circuit number TD / Transmitted Data RD / Received Data RTS / Request to Send CTS / Clear to Send DSR / Data Set Ready –...
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Page 5: Line Connection
Power consumption Max 3W Anslutning Insulation 1000V Fuse F1 1,6A fast 5x20 mm According to MA-12AC, exept power supply All other specifications according to MA-12 AC Connection no. Power supply + Voltage – Voltage Switch settings According to MA-12AC 6012-2001... - Page 6 Hints MA-12 are compatible with all asyncronous Westermo modem. The RS-232 interface on the MA-12 is configured as DCE (Data Communication Equip- ment). Most printers, PC’s and terminals are set as DTE (Data Terminal Equipment). Some recommendation of cable configurations are given below.
- Page 7 OWN COMMENTS ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................6012-2001...
- Page 8 1) 0 Ω resistor J2 is normally not mounted 2) Metal housing on D-sub is connected to 0V Westermo Teleindustri AB have distributors in several countries, contact us for further information. Westermo Teleindustri AB • S-640 40 Stora Sundby, Sweden Phone +46 16 612 00 Fax +46 16 611 80 E-mail: info@westermo.se • Westermo Web site: www.westermo.se...
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