Gateway for the BL20 I/O System. High-Feature Interface for PROFINET (IRT). Ident. no.: 6827377. Protection class IP20. 2 x end brackets BL20-WEW35/2-SW. 1 x end plate BL20-ABPL. LEDs for display of supply voltage, group and bus errors. Gateway between the BL20 system and PROFINET (IRT). Supports topology recognition and LLDP. 10/100 Mbps, Auto MDIX. 2 x RJ45 port. . Attention: This gateway is nearing the end of the product life cycle. .