Tyrrell Products




Join the Tyrrell Products Loyalty Scheme to unlock exclusive deals.

Get help buying, call 01942 732819

I/O module with Modbus RTU/ASCII or BACnet MSTP communication


Multiprotocol I/O Module in a Compact Size with High Power Relays
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. The module is equipped with 8 A relay outputs.

4 Digital Outputs 
Digital outputs equipped with NC/NO 8 A relays allow for a direct control of high power loads.

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 or dedicated free of charge tool. The ability to be powered from a USB port facilitates local testing and a straightforward updating process, and the high-end RS485 transceiver allows up to 128 devices to communicate reliably with the client on a single bus.


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

4 Digital Outputs (DO) 
NC/NO relay output 
Resistive load max. 8 A @ 230 V AC / 30 V DC
Inductive load max. 360 VA @ 230 V AC / 90 W @ 30 V DC

Free software iSMA Configurator
Dedicated Niagara Framework modules

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


Related products

Products enquiry

Please complete the enquiry form. Our team will contact you within 2 hours. 
(please note Tyrrell Products operational hours 9am – 5pm UK time)

Please enable JavaScript in your browser to complete this form.