TDO340
Teracom TDO340: 4-Channel Relay Output Module for Marine & Industrial Automation
The TDO340 is a four-channel relay output module featuring independent SPST contacts and MODBUS RTU communication. Each relay is electrically isolated, ensuring reliable switching across all outputs. Non-volatile memory preserves configurations and relay states during power loss, while a watchdog function places relays into a defined safety condition if communication is interrupted. Supporting up to 63 nodes on an RS-485 line, the unit integrates easily into automation systems. It includes a wide input voltage range, LED status indicators, firmware update capability, an integrated 120-ohm termination resistor, and DIN-rail mounting for straightforward installation.
DIN-rail mounting for fast installation
Built-in 120-ohm termination resistor
Firmware upgradeable via interface
LED indicators for communication status
