Write-Read Head HF for bus line topology with TBEN-*, operating voltage 19.2 to 28.8 VDC, non-flush, rectangular, height 42.5 mm, active area on top, plastic, PA12-GF30. Device without termination must only be operated in line topology with TBEN-S*-2RFID-* or TBEN-L*-4RFID-*. A maximum of 32 participants per line or connection is permitted. For termination, a corresponding termination resistor (see accessories) must be used. The power supply performance, especially at the moment of switching on, as well as the maximum current carrying capacity of the cables must be considered. The voltage drop on the line should be taken into account. The maximum possible length of the spur line is 2 m, and the maximum possible total length of the bus is 50 m. The HF bus mode is suitable for static applications and slow dynamic applications, as a command can only be processed by one write-read head at a time by default. In continuous HF bus mode, a command is executed simultaneously on all write-read heads in a bus topology. The captured data is stored in the module's ring buffer. The write-read head is automatically assigned an address. For different application requirements, the address can be parameterized. Power supply and function are only provided through connection to the BLident interface module, connector M12 x 1, connection only via BLident connection cable.