Addressable Mini I/O

  • Addressable RS 485 to RS 232 Converter.
  • Users can easily add/remove a Serial Port in their RS485 network to talk to RS232 based Serial Devices with the added feature of addressability.
  • Power and Data Isolated RS485 port gives protection to the unit and also the connected RS232 device from the RS485 network.
  • Unit address can be set by 8 way DIP switch allowing 255 addresses.
  • Baud Rate and other RS232/RS485 port parameters are set by writing in to Modbus Registers.
  • Address 0 of the DIP switch loads known defaults to the RS232/RS485 ports ensure configurability at all times
  • Supports 2 Digital Inputs, 4 Analog Inputs & 2 Outputs.

Features & Specifications

Serial RS 232, RS 485
RS 485
Maximum number of drivers 256
Maximum cable 1220 m
Signal Isolation Provides Optical Isolation Signals
Power Isolation >3000 Isolation between RS 485 and RS 232
ESD Protection + / – 15KV
RS 232, Digital, Analog DB 25 pin male
Serial RS 485 RS 485 3-pin Screw type Connector
Baud Rate 600 to 115200 bps
Data Bits 8
Stop Bits 1 or 2
Parity None, Even, Odd
Flow Control None, Xon / Xoff
ID Setting 8 way DIP switch from 01 to 255. 0 is for default loading
Supported Protocol MODBUS
Analog Inputs 4 Inputs. 0 to 12 V DC
Input Type (Optional) Single ended, 4 to 20 ma on 4 Inputs with 10 bit resolution OR Single Ended, Differential on 2 Inputs with 16 bit
Isolated Digital Inputs 2 Inputs. 5 to 12 V DC. Isolation of 3750 V RMS
Digital Output 2 Open Collector outputs with a maximum of 12 V DC. Freewheeling Diode protected.
Power 5 to 24 V DC, 100 mA
Indicators (LED)
Power Red
TxD Yellow
RxD Green
Operating 0 °C to 70 °C
Storage -40 °C to 85 °C
Dimensions (LxWxH) 140mm(L) x 130mm(W) x 31mm(H)
Weight, Warranty 50g, 12 Months


  • Industrial Control and Automation.
  • Environmental Monitoring and Control.
  • Plant Automation.

  • Energy Monitoring and Management.
  • Building Management Systems – BMS.
  • Remote Data Logging.

  • Enabling MODBUS capability for non MODBUS devices.
  • ATM Management.
  • Mobile Tower Management.

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