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iSMA-B-12O-H - 12 relay outputs
  • iSMA-B-12O-H - 12 relay outputs

iSMA-B-12O-H - 12 relay outputs

  • 24 digital relay outputs
  • Communication: BACnet MS/TP, Modbus ASCII/RTU
  • Manual Override Switches
  • Simplified Configuration and Commissioning Process

GET A QUOTE: ampero@ampero.eu



MAX-IO - Product Brochure

iSMA-B-MAX-RS - Datasheet

 iSMA-B-MAX-RS - Karta katalogowa

 Multiprotocol I/O Modules Bacnet - Manual

 Multiprotocol I/O Modules Modbus - Manual

Bacnet.png Modbus.png

Multiprotocol I/O Module with a MAX number of Digital Outputs - a powerful addition to any building automation system

Digitalize buildings with reduced engineering time using the powerful 12 digital outputs module, which works as a remote I/O oover the serial port with open protocols: BACnet MS/TP, and Modbus RTU/ASCII. Open protocols standard offers the versatility of installing the modules in both new and existing facilities, whether it is a system expansion or a retrofit. The maximum number of the most popular types of inputs or outputs allows the module to be a versatile controller extension, whether in a small or large facility.

12 relay outputs

Digital outputs equipped with normally open 3 A relays allow for direct control without additional relays.

Manual Override Switches

Each output can be manually overridden using a dedicated hand-operating switch.

Simplified Configuration and Commissioning Process

The module allows for seamless configuration over BACnet, Modbus, built-in web server, or dedicated free of charge tool. The ability to be powered from a USB port facilitates local testing and a straightforward updating process. Two Ethernet ports working in a switch mode allow for daisy chaining of multiple modules over the RJ45, which facilitates the cabling process and reduces engineering time.

Quality and Reliability Confirmed by Certificates

iSMA CONTROLLI is a long-standing member of the BACnet community. The experience in developing high quality products and the BTL (BACnet Test Laboratory) certification confirms the excellent performance of communication using the BACnet protocol.



  • RS485 interface
  • miniUSB type B interface
  • Status LED indicator
  • DIN rail mounted
  • 12 relay outputs


  • 12 relay outputs
  • NO relay outputs
  • Resistive load max. 3 A @ 230 V AC / 30 V DC
  • Inductive load max. 75 VA @ 230 V AC / 30 W @ 30 V DC


  • BACnet MS/TP
  • Modbus RTU/ASCII
  • Free software iSMA Configurator
  • Dedicated Niagara Framework modules


  • 24 V DC ± 20%
  • 24 V AC ± 20%

Product Details


Specific References

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