ISORS232-1x4-B* industrial interface converter RS232-4хRS232

ISORS232-1x4-B serves to connect up to 4 remote devices equipped with RS232 interface to one central unit (PC, HMI, etc.) with RS232 interface.

Also ISORS232-1x4-B provides galvanic insulation between the central unit and the remote devices which are not isolated from each other.

ISORS232-1x4-B is housed in a box with IP65 degree of protection, which allows its operation in high dustiness and/or humidity environments.

ISORS232-1x4-B can be mounted on a wall or in a panel, desk-top applications are also possible.ISORS232 1x4 12 06 2024 800px min

Five-wire connection to RS232 interfaces: RxD, TxD, GND, RTS and CTS.

ISORS232-1x4-B comes equipped with power cable and RS232 connection cable to the central unit, terminating with DB9F connector, wired for direct connection to a standard PC port.
Remote devices are connected by separate individual cables to the ISORS232-1x4-B.


  • Plug & play: no software drivers or manual settings are required.
  • Baud Rate: 1200 ÷ 115200 bps.
  • Communication protocol: asynchronous transfer, transparent transmission, half duplex, full duplex.
  • Mode of operation: point to multipoint.
  • Full three-way insulation between power supply and serial interfaces, protecting against equalizing currents.
  • Supply voltage: 230VAC.
  • Consumption: ≤ 3VA.
  • Optical isolation 1500Vrms (AC, 1 min.).
  • Cable length for RS232: up to 15 m.
  • Box dimensions (without cable glands): 158.5 x 82.1 x 55 mm.
  • Operating temperature: +5 ÷ 55 °C.
  • Relative humidity: ≤ 95 %.
  • Protection degree: IP65.


Connecting devices communicating via RS232 interface, with galvanic separation.
Control and information systems for technological processes and installations.
Systems for data collection and processing, industrial control systems.
With measurement devices for utility applications.
Motor drives for industrial use.
Automated HVAC systems.
Management of petrol stations, etc.

The solutions for your automation ideas.

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