Skip to content


£217.00 GBP
About the product 

iSMA-B-2D1B has been built in order to control light and a blind/shutter motor in a single space in the building. The device is dedicated to control two separate DALI light areas with up to 32 DALI ballasts. Built-in two Special Inputs and two Digital Inputs are dedicated to connect presence detectors and light switches. Dedicated DIP-switch allows to activate predefined inputs configuration. Out of box the device allows to control the DALI ballasts by a common light switch and a common presence detector without the need of programming, which makes iSMA-B-2D1B the unique plug& play type device dedicated to DALI network control. In addition iSMA-B-2D1B has blind/shutter control function implemented, which allows to control a blind/shutter motor by a common double-switch. The controller is factory-equipped with the RS485 interface which is the physical layer for the most popular open communication protocol Modbus ASCII/RTU.

Key Features

  • Addressing from 0 to 255 by DIP-switch
  • 230 V AC power supply
  • Dedicated DIP-switch for inputs configuration
  • Fast processor with ARM core
  • Modbus ASCII/RTU or for connecting to higher level system over RS485 ‚Ä¢ 2x DALI Interface: built-in power supply for up to 16 ballasts each
  • Special and Digital Inputs for present detectors and light and blind switches connection
  • 2x power supply outputs for ballasts (fuse protected)
  • 1x power supply output for blind motor (fuse protected)
  • Built-in 24 V DC for an external equipment


• 2x Special Input – dry contact
• 4x Digital Input – dry contact

• 2x Light output 230 V AC max. 4 A
• 1x Motor Output 230 V AC max. 1,5 A
• 1x Power Supply Output 24V DC max. 80 mA

WARNING! Max. current for all the outputs is 8 A

Power supply
• 230 V AC

• Operating temperature: 0°C to 50°C
• Storage temperature: -40°C to 85°C
• Relative humidity: 5% to 95%, no condensation
• Ingress Protection Rating: IP40 – for indoor

• ARM Cortex – M4

RS485 Interface:
• Interface RS485 half-duplex
• Up to 128 devices on bus
• Protocols: Modbus
• Baud rate: 2400 to 115200 bps

DALI Interface:
• 2x separate DALI Interface: built-in power supply max.
40 mA
• Up to 16 DALI ballasts per interface

• Dimension: 123,6x136,6x54,5 mm, (123,6x171,2x54,9
mm with plastic cover for terminals)
• Construction: plastic, self-extinguishing (PC/ABS)
• DIN rail mounting DIN (DIN EN 50022 norm)
• Cooling: internal air circulation

Do you have a question about this product

Documentation & Downloads for iSMA-B-2D-WD style=

Customer Reviews

No reviews yet Write a review

Recently Viewed Items