BL20 Electronic Module. 2 RFID Channels (HF/UHF). Ident. no.: 6827233. Fieldbus and connection technology independent. Protection class IP20. LEDs indicate status and diagnostic. Electronics galvanically separated from the field level via optocouplers. Connection of two BL ident read/write heads (HF or UHF). Mixed operation of HF and UHF read/write heads. Transmission rate: 115.2 kbps. Cable length max. 50 m