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Using the Click 301
The Click 301 serial to Ethernet converter changes half-duplex two-wire RS-232 and RS-485 communication to
Ethernet and vice versa. Use this device in a cabinet to transfer data from a sensor to your computer or traffic
operations center via a wired network connection.
Physical Features
The Click 301 has several communication ports, as well as features for configuration (see the figure below).
Mode
Switch
LED Indicators
RS-485
Connector
RS-232
Connector
Ethernet
Connector
T-Bus
Connector
TOP
FRONT
Communication Ports
The back of the Click 301 features a 5-position connector that plugs into a T-bus connector and provides power
and RS-485 communication to the device. It also passes RS-485 communication from the module to all other
devices on the T-bus.
The top of the device has a pluggable screw terminal block that features -485, one +485 and two ground screw
terminals for wiring RS-485 communication. This screw terminal block can be removed for easy preinstallation
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