Basic functionality of the TP line coupler ITR901-002 is coupling two KNX TP lines (main line and subline) providing galvanic isolation in between. Due to its flexibility ITR901-002 coupler unit can be used as KNX line coupler or KNX area coupler (to connect a TP line to a TP area or backbone) or KNX repeater (without filtering). Operational and filtering states, malfunction and faulty communication are indicated by LEDs.
ITR901-002 is able to filter the traffic according to the installation place in the bus system hierarchy and according to the built-in filter tables for group oriented communication.
ITR901-002 supports long messages (up to 240 byte APDU length) and features, for commissioning / troubleshooting, a configurable “Manual Function” with single button press activation and automatic switch-off to temporarily deactivate filtering. Available functions are:
• Suppress device configuration from the subline.
• Suppress device oriented telegrams.
• Trace the subline traffic.
• Enable/disable filtering of Group telegrams or Physical telegrams.
• Reduced number of retransmissions option available.
• Diagnostic functions.
ETS database file is available at www.interra.com.tr