INSTALLATIONSANVISNING INSTALLATION MANUAL INSTALLATIONS ANLEITUNG MA-19. Korthållsmodem Short Haul Modem Kurzstreckenmodem

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1 INSTALLATISANVISNING INSTALLATI MANUAL INSTALLATIS ANLEITUNG Galvanic Isolation 0-00 Transient Protection Balanced Transmission CE Approved Westermo Teleindustri AB REV. A Korthållsmodem Short Haul Modem Kurzstreckenmodem

2 Specifications Transmission Asynchronous Full/half duplex or simplex Interface EIA RS--C/CCITTV., V. -pin D-sub, female DCE Interface 0 ma tri-state balanced current loop -position detachable screw-terminal mounted on the rack s back board Transmission rate 0-, kbit/s Indicators Power, TD, RD,, DCD Isolation Complete galvanic insulation with opto-coupler (data) and transformer (supply) Isolation voltage 00 V Power supply External through PS-0 mounted in rack (RV-0) ±0 V DC ±0% Power consumption +0V 0 ma, -0V 0 ma Temperature range -0 C Humidity 0-% RH, non-condensing Dimension 00x00 mm Weight 0. kg Mounting In rack, takes one card-slot in RV

3 Switch settings The can through different switch settings be adapted to a variety of operating conditions. The switches are located on the circuit board and have the following functions: - - F/F Selection of signal activating transmitter (carrier) Selection of signal controlling CTS Fuse 00mA Fast F F Transmitter (carrier) activated by CTS controlled by Always active AUX Always high SRS DCD RFR DTR Factory settings DTR and AUX DTR and SRS DTR and RFR DTR and 0-00

4 Connections Line connection (-Position screw-terminal) Direction No. Description Direction ) Pin CCITT V. Description no. Circuit no. Transmitter R+ Transmitter R- Receiver T+ Receiver T- Shield Terminal connection (DCE) (RS--C/V./V., -Position D-sub, female) I 0 TD/Transmitted Data O 0 RD/Received Data I 0 /Request To Send O 0 CTS/Clear To Send O 0 DSR/Data Set Ready 0 SG/Signal Ground O 0 DCD/Data Carrier Detect I AUX/Auxiliary I 0 SRS/Secondary Request to Send I 0 0/ DTR/Data Terminal Ready I RFR/Ready For Receiving I=Input O=Output on Section of rack RV-0 with one mounted. Terminal connection to a -position D-sub (female) connector on. Line connection to a -position detachable screw-terminal, which is mounted on the male connector located at the rear of RV

5 Line connection Twisted pairs ±0 ma Current Loop e.g. MA- Receiver R+ T+ Transmitter R- T- Transmitter T+ R+ Receiver Shield ) T- R- ) If shielded cable is used, connect the shield only at one end to avoid ground currents. Transmission range (interface ) Cable Transmission rate bit/s pf/m 0.mm m m m m 00 00m m 00 00m 0-00

6 Hints The has the same line interface as many of Westermo s systems MA-, MA-, MA-, MA-, MM-, MM-, LA-0, LD-0 and LD-0 are hence compatible. The RS- interface on the is configured as DCE (Data Communication Equipment). Most printers, PC s and terminals are set as DTE (Data Terminal Equipment). Some recommendation of cable configurations are given below. If any problems do occur on set up of the, the LED s will be helpful. - PWR: The unit has power. - RD: Data received on line interface. - TD: Data received on RS- interface. - DCD: Carrier indication, must be on for transmission. - : Indicates the carrier control status. A good way to check the MA- is to carry out a loop back test. Connect T+ to R+ and T- to R-. Connect the RS- port to a terminal. When keys are pressed on the terminal you should receive the echo on screen. The TD & RD lights will both flicker simultaneously as you press the keys. DTE DCE pol. PC

7 OWN COMMENTS 0-00

8 Block diagram RS--C/V. LINE ) DTR AUX X 0 +V & +V SRS RFR CTS DCD RD RD DCD R+ () R- () DSR TD SG +V 0V TD EN +V 0V T+ () T- () () Shield 0V X 0V POWER SUPPLY -...V +...V 0 00mA 00mA STAB +V 0V -V +V -V 0V -V Westermo Teleindustri AB have distributors in several countries, contact us for further information. Westermo Teleindustri AB S-0 0 Stora Sundby, Sweden Phone + 00 Fax info@westermo.se Westermo Web site: Westermo Data Communications Ltd Solent Business Centre Millbrook Road West Millbrook, Southampton SO 0HW Phone: +(0)0-0 Fax.:+(0)0 0 sales@westermo.co.uk Subsidiaries Westermo Data Communications GmbH Bruchsaler Straße, Waghäusel Tel.: +(0)-00-0 Fax.:+(0) westermo.germany@t-online.de TunaTryck AB, Eskilstuna, Sweden