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Description
iSMA-B-4U4O-HAbout the product The module is factory equipped with the two most popular open communication protocols: ModbusASCII RTU andBACnetMSTP, which are selected using DIP switches. Addressing the modules is via rotary switches, which facilitates and accelerates the process of commissioning the system. Built in mini USB allows for initial configuration of the unit without power supply. BMS Compatibility System Controller Tridium Jace3, Jace6,
About the product
The module is factory-equipped with the two most popular open communication protocols: Modbus ASCII/RTU andBACnet MSTP, which are selected using DIP switches.
Addressing the modules is via rotary switches, which facilitates and accelerates the process of commissioning the system.
Built-in mini USB allows for initial configuration of the unit without power supply.
BMS Compatibility 
 
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 - Required external resistor: 200 Ω, sold separately
- 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
Platform
- Cortex-M3
Communication
- Interface RS485 half duplex
- Up to 99 devices on the bus
- Protocols: MODBUS or BACnet
- Baud rate: 2400 to 115200 bps
Power supply
- 24V AC/DC
Housing
- Dimension: 35x110x62 mm.
- Construction: plastic, self-extinguishing (PC/ABS)
- DIN rail mounting (DIN EN 50022 norm)
- Cooling: internal air circulation
Environments
- 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 
 Do you have a question about this product?
 
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 Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 3
Cheap
Size: 6FT*6FT, Color: Black
They serve their purpose as long as you leve them in one place and not moving them around and they're kinda flimsy and some of the velcros are cut too short and can't stay closed
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Beautiful, sturdy, lightweight.
Color: Natual, Pattern Name: Divider, Color: Natual, Pattern Name: Divider
This screen is beautiful, lightweight and well-made. There is no splintering of the wood like I read in some reviews. The white fabric is thick and sturdy and even. The brass hinges seem to be high quality and were mounted precisely. This screen came right out of the box completely assembled. It was boxed well and there was no shipping damage.
I will enjoy using this as a backdrop when I am on Zoom and as a room divider in my studio.
I paid $75 for this and I think that is a bargain! I am very happy with this purchase.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Beautiful
Color: Natual, Pattern Name: Divider
Okay now! This is exactly what i needed. Perfect and no assembly required. Love the smell of the bamboo wood. Lightweight and very portable and great size. Ran around town all day the other day and for nothing that wasnt more expensive and just plain ugly. This is absolutely beautiful and well worth the money and it looks beautiful. What is depicted is exactly correct and that’s why there is no need to post another photo.
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Reviewed in the United States on October 24, 2025
★★★★★ 5
Nice panels to hide unsightly areas
Color: Black, Pattern Name: Divider
These are nice panels with a modern look to hide those unsightly places in your basement or utility areas and still allow ready access. Used mine in our large laundry room to block the view of the furnace and water heater in lieu of building a wall. The black and white basic pattern blended well with the walls and white appliances and improves the casual look of the room. I would not call construction overly rigid as they will not stand up to rough treatment or childrens areas well.
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Reviewed in the United States on January 29, 2026
★★★★★ 4
Looks great, covers space.
Color: Natual, Pattern Name: Divider
Very nice and functional, A bit lightweight and tips over easy. Keep it partly opened out of the way to prevent it falling over.
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Reviewed in the United States on April 9, 2026