Tyrrell Products


4TO-H IP (BACnet IP / Modbus TCP)


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4TO-H IP (BACnet IP / Modbus TCP)

4TO-H IP (BACnet IP / Modbus TCP)

Multiprotocol I/O Module in a Compact Size
Powerful I/O module that works as a remote I/O over IP with open protocols, BACnet IP and Modbus TCP/IP. A compact size and ease of installation allow the module to be fitted even into limited space installations.

4 Triac Outputs 
Silent control of AC current with four solid-state outputs with PWM mode and up to 0.5 A load.

Manual Override Switches 
Each output can be manually overridden using a dedicated hand operating switch.

Modbus TCP/IP to Modbus RTU/ASCII Gateway 
Built-in Modbus gateway on the COM1 port enables integration of up to 128 Modbus slave devices to the IP layer.

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.


Hardware Specification
Ethernet interface
RS485 interface
mini USB type B interface
Status LED indicators
DIN rail mounted

4 Triac Outputs (TO) 
0.5 A @ 24 V AC, 0.5 A @ 230 V AC
Continuous load per channel: 0.5 A (1.5 A peak 30 s) 
Switching voltage: 20 to 250 V AC

Modbus TCP/IP
Modbus TCP/IP to Modbus RTU/ASCII gateway 
Free software iSMA Configurator
Built-in web server
Dedicated Niagara Framework modules

Power Supply
24 V DC ± 20%
24 V AC ± 20%


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