IO Modules


  • Brand:iSMA
  • Category: All Products, Bacnet IO Modules, Centraline Compatible IO, Cylon Compatible Bacnet IO Modules, Dell Edge Compatible IO, Delta Controls Compatible IO, Distech IO Modules, Hand Operating IO Modules, HVAC BMS Controls, IO Modules, IO Modules for underfloor heating and cooling, IP IO Modules, iSMA Range, Mini IO Modules, Modbus IO Modules, OSS Bacnet IP IO Modules, Other products, Priva Blue ID Compatible Bacnet IP IO Modules, Schneider Compatible Bacnet IP IO Modules, Siemens Compatible IO Modules, Trend Compatible IO Modules, Tridium Compatible IO Modules, Tridium compatible products
Availability: In Stock
£285.00 GBP
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iSMA-B-4U4O-H-IP is one of the most innovative and easy to setup IO module on the market. Works on either Bacnet or Modbus. It has 4 Universal Inputs and 4 Digital Outputs and can be hand operated.

BMS Compatibility 



Tridium Jace3, Jace6, Jace8000 Compatible

Trend IQ3, IQ4 Bacnet IP

Siemens PX range
Cylon Bacnet controllers
Schneider Electric StruxureWare Bacnet controllers

OSS NeOSS building management controller
Priva Blue ID
Distech EC Bos Compatible


Honeywell  Centraline IO MODULES Compatible with any Hawk

Delta Controls Compatible IO Modules
Greenologic GreenBox Compatible IO Modules
If your BMS is not listed please email: 


4x Universal inputs (4UI)

All universal inputs have 16-bit resolution which support the following types of inputs:
  • Temperature input support the following types of sensors: 10K3A1, 10K4A1, Carel 10K, 20K6A1, 2.2K3A1, 3K3A1, 30K6A1, SIE1, TAC1, SAT1, Pt1000, Ni1000 For sensor Pt1000 and Ni1000 use only 16bit resolution
  • Voltage input 0-10VDC: input resistance 100kΩ accuracy ±0,1% measurement resolution 3mV@12bit and 1mV@16bit
  • Current input 0-20mA
  • Resistive input 0-1000kΩ: measurement resolution for 20kΩ load 20Ω@12bit and 1Ω@16bit
  • Dry contact input

4x Digital Outputs (4DO)

  • Relay output (NO) max. 3A, 250V AC/30 VDC


  • Cortex-M3


  • Interface RS485 half duplex
  • 1 x Fast Ethernet
  • Up to 99 devices on the bus
  • Protocols: MODBUS or BACnet
  • Baud rate: 2400 to 115200 bps

Power supply

  • 24V AC/DC


  • Dimension: 35x110x62 mm.
  • Construction: plastic, self-extinguishing (PC/ABS)
  • DIN rail mounting (DIN EN 50022 norm)
  • Cooling: internal air circulation


  • Operating temperature: -10°C to 50°C
  • Storage temperature: -40°C to 85°C
  • Relative humidity: 5 to 95%, no condensation
  • Ingress Protection Rating: IP40 – for indoor installation

Find out quickly what you need for your project:

Make sure you get the latest discounts and prices register here:

Pdf 07203e634431f4d17e7c6c921cd94f1e9d74d1f6a670624fd1f197332e7ccd38 iSMA-B-4U4O-H-IP Installation Instruction
Pdf 07203e634431f4d17e7c6c921cd94f1e9d74d1f6a670624fd1f197332e7ccd38 iSMA-B-MINI Datasheet
Pdf 07203e634431f4d17e7c6c921cd94f1e9d74d1f6a670624fd1f197332e7ccd38 MINI and MIX Series IO Modbus Manual
Pdf 07203e634431f4d17e7c6c921cd94f1e9d74d1f6a670624fd1f197332e7ccd38 MINI and MIX Series IO BACnet Manual
Pdf 07203e634431f4d17e7c6c921cd94f1e9d74d1f6a670624fd1f197332e7ccd38 BTL_Cert_30201_GlobalCont_iSMABMINII
Pdf 07203e634431f4d17e7c6c921cd94f1e9d74d1f6a670624fd1f197332e7ccd38 BTL_Listing_30201_GlobalCont_iSMABMINII
Pdf 07203e634431f4d17e7c6c921cd94f1e9d74d1f6a670624fd1f197332e7ccd38 iSMA-B-MINI_Declaration_of_Conformity
Pdf 07203e634431f4d17e7c6c921cd94f1e9d74d1f6a670624fd1f197332e7ccd38 Mechanical_drawing iSMA-B-4U4O-H-IP
Pdf 07203e634431f4d17e7c6c921cd94f1e9d74d1f6a670624fd1f197332e7ccd38 iSMA_Configurator_Release_Notes
Pdf 07203e634431f4d17e7c6c921cd94f1e9d74d1f6a670624fd1f197332e7ccd38 iSMA-B-MINI_IP_Series_FW_Release_Notes


In the DOWNLOAD session you can find:

  • The ISMA driver for Niagara, which contains the ISMA device Palette
  • Isma configurator which is needed for updating firmware and configure modules
  • Templates for Siemens sensors for Niagara (Generic Tabular) - Ni1000 Ohm at 0°C - PTC T1 (Resistance/Voltage) - Pt100 Ohm at 0°C - Pt1000 Ohm at 0°C - Pt1000 Ohm at 0°C - Pt1000 Ohm at 0°C - Pt1000 Ohm at 0°C - Pt1000 Ohm at 0°C  -    Ni100 Ohm at 0°C - Ni100 Ohm at 20°C - NTC 107 Ohm at 20°C - NTC 150 Ohm at 31°C - NTC 1 kOhm at 20°C - NTC 1 kOhm at 20°C - NTC 2 kOhm at 20°C - NTC 3850 Ohm at 0°C - NTC 500 Ohm at 20°C - NTC 575 Ohm at 20°C - NTC 8250 Ohm at 19°C

Shipping Informations

What Shipping Methods are Available?

We do UK next day delivery and 2 working days for Ireland We do Europe standard 3 day delivery. We do Worldwide delivery between 2 and 7 days depending on each country.

How Can I Return A Faulty Product?

Returns are free of charge we will organize the pickup only in the case the product is faulty. Please contact to obtain an RMA number first.

How Do I Track My Order?

Once we ship your order, you will receive a tracking number and you will also find it in My Account section.

How can I place an Order?

You can place an order online and pay by credit/debit card if you do not have a Trading Account.
You can please your order online and pay by Trading Account if you have a Business Trading Account.
To open a Business Trading Account please fill in this form and send it back to

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