RJFTV, RJ11FTVX Field Connectors Zone 2 A range of Atex Field Bus RJ45 and RJ11 connectors designed for device group II category 3 applications from Amphenol. The RJFTVX connectors allow the use of Cat5e networks in ATEX zone 2 environments. These metallic, rugged, sealed connectors allow the use of standard RJ45 cordsets. The RJ11FTVX connectors allow the use of standard phone RJ11/RJ12 connection in ATEX zone 2 environments. These metallic, rugged, sealed connectors allow the use of standard RJ11 / RJ12 cordsets. All models are highly reliable and excellent quality.