If the product does not function accordance with the instructions will be repaired. All warranty and no warranty repairs must be returned with paid transport and insuring to the CEL-MAR Company. CEL-MAR Company under no circumstances won't be responsible for ensuing damage from improper using the product or as a result of random causes: the lightning discharge, the flood, the fire and the like.
2.3. CURRENT LOOP TRANSMITTER The Current Loop transmitter in the ADA-4021 was made as a passive 0-20mA, having low energy short circuit protection on TX+ and TX- lines. By the correct connection of the transmitter with power source I1, Current Loop transmitter 0-20mA can operate as active.
Fig 3. Isolation structure 3. INSTALLATION This chapter will show how to connect ADA-4021 to PC, Current Loop bus, RS485/422 bus and power supply and how to use it. In the purpose of minimization of disruptions from environment is being recommended to: ●...
9600Bd, should be used the Line Termination resistor if the distance is over 1000m @ 9600Bd or 700m @ 19200Bd transmission. Example connection of Rt are shown on Fig. 6 & 7. Two resistors Rt =120W , 5%, 0,25W are supplied with ADA-4021...
Active Receiver Rx - Passive Transmitter I2 - Power Fig 8. Example connection of device with passive transmitter and passive receiver to ADA-4021 3.4.2. CONNECTION TO DEVICE WITH ACTIVE TRANSMITTER & ACTIVE RECEIVER Current Loop ADA-4021 Device RS485/RS422 Current Loop...
3.5. POWER SUPPLY CONNECTION The power supply to the ADA-4021 converter should be DC (regulated) from 10 V= to 30V=. Nominal power is typically 2W, e.g. ZS- 12/250, DR-15-24. Power cable from DC power supplies to device must not be longer than 3m.
4.1. SETTING OF OPERATING MODE All available operating modes are shows in table below. If there are any additional questions, please contact with technical support: suppor@cel-mar.pl or on the phone: +48 41 362-12-46. Table 1. RS422 or RS485 operating mode.
ADA-4021 7. SPECIFICATION TECHNICAL DATA Transmission Parameters Interface RS-485/RS-422 Current Loop Screw terminal, wire max. Ø 2,5mm Screw terminal, wire max. Ø 2,5mm Connector Line length up to 1200 m Depend on baud rate, several kilometres up to 32 Maximum number of connected device...
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Thank you for purchasing CEL-MAR Company products. We hope that this user manual helped connect and start up the ADA-4021 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, Current Loop, Fibre-Optic Converters and Ethernet or Wi-Fi.
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