CEL-MAR ADA-1020 User Manual
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CEL-MAR ADA-1020 User Manual

Rs-232 to current loop converter
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ADA-1020
User manual
ADA-1020
RS-232 to Current Loop converter
1
Copyright © 2001-2020 CEL-MAR sp.j.
io_ada-1020_v3.26_en

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Summary of Contents for CEL-MAR ADA-1020

  • Page 1 ADA-1020 User manual ADA-1020 RS-232 to Current Loop converter Copyright © 2001-2020 CEL-MAR sp.j. io_ada-1020_v3.26_en...

  • Page 2: Table Of Contents

    3.2.2. CONNECTION OF DEVICES WITH RS232 PORT - DCE TYPE (MODEM).................6 3.3. CONNECTION OF THE CURRENT LOOP INTERFACE DEVICES....................7 3.3.1. CONNECTION OF THE CURRENT LOOP LINE TO ADA-1020 CONVERTER..............7 3.4. EXAMPLE CONNECTION OF DEVICES TO THE CONVERTER....................8 3.5. CONNECTION OF RS232 INTERFACE DEVICES TO CURRENT LOOP BUS................8 3.5.1.

  • Page 3: General Information

    1.1. WARRANTED INFORMATION The ADA-1020 converter is covered by a two year warranty from date of sale. In case of being damaged it will be repair or the damaged component will be replace. The warranty does not cover damage caused from improper use, materials consumption or any unauthorized changes.

  • Page 4: Description

    2.2. DESCRIPTION ADA-1020 converter is a device used to convert the RS232 to current loop standard without interfering with the format of transmitted data and does not require the power supplying from the RS232 port. The converter supports RS232 asynchronous data transmission at baud rate up to 38.4 kbps via two pairs of twisted-pair cable.

  • Page 5: Isolation

    ● not supply converter from power circuit device that generates large impulse interference such as transmitters, contactors, 3.1. ASSEMBLING The ADA-1020 enclosure is adapted to assembly on TS-35 (DIN35) rail. To install repeater you should mount device on the rail upper part of the enclosure then press bottom part to to hear characteristic „Click” sound.

  • Page 6: Connection Of Devices With Rs232 Port - Dte Type (Computer)

    3.2.2. CONNECTION OF DEVICES WITH RS232 PORT - DCE TYPE (MODEM) In the purpose of connecting ADA-1020 to a device with RS-232 port DCE type (eg. modem), should be used RS232 link cable, with male connectors DB9. Connection example is shown below.

  • Page 7: Connection Of The Current Loop Interface Devices

    Vss- Vss+ Vss+ Power Power Supply Supply Vss+ Vss+ Vss- Vss- Fig 7. Example connection of two ADA-1020 together. The line length larger than 500m. ADA-1020 ADA-1020 Current Loop Line 2-pair twisted RS232 RS232 Current Loop Current Loop DCE/DB-9F DCE/DB-9F...

  • Page 8: Example Connection Of Devices To The Converter

    Fig 9. Connection of two ADA-1020 for extension the RS232 computer port 3.5. CONNECTION OF RS232 INTERFACE DEVICES TO CURRENT LOOP BUS Using ADA-1020 in the version with Active/Passive current loop transmitter ( I= 0-20 mA), can be created the current loop bus as on the figures below.

  • Page 9: Connection Of 5 Rs232 Interface Devices To Current Loop Bus

    3.5.2. 3.5.1. CONNECTION OF 5 RS232 INTERFACE DEVICES TO CURRENT LOOP BUS In this case/example the Current Loop bus is created by one ADA-1020 converter (MASTER – active transmitter) and one ADA-1020 converter (SLAVE – active transmitter - the furthest located from the MASTER) and max. 4 converters ADA-1020 (SLAVE – passive transmitter).

  • Page 10: Power Supply

    3.6. POWER SUPPLY The power supply to ADA-1020 should be DC (regulated) from the scope 10 V= to 30V= (option from 10V= to 48V=) and nominal power more 2W eg. DR15-24. The power cable from DC power supplies to the device must not be longer than 3m.

  • Page 11: Description Of Signalling Leds

    4.1. DESCRIPTION OF SIGNALLING LEDS Description PWR Signalling of Power Supply Signalling of data receiving through ADA-1020 converter from Current Loop port. Signalling of data transmitting from ADA-1020 converter through Current Loop port. ATTENTION ! AT BAUD RATE ABOVE 38.4 KBPS THE LED'S TX, RX WILL LIGHT WEAKLY DURING DATA TRANSMISSION 5.
  • Page 12 Thank you for purchasing CEL-MAR Company product. We hope that this user manual helped connect and start up the ADA-1020 converter. We also wish to inform you that we are a manufacturer of the widest selections of data communications products in the world such as: data transmission converters with interface RS232, RS485, RS422, USB, Ethernet, Wi-Fi, Current Loop, Fibre-Optic Converters and other.

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