The 6GT2815-2BN15 is a 15-meter pre-assembled coaxial antenna cable with R-TNC (reverse polarity TNC) sockets at both ends, built with O2YS(ST)CY cable. This is the trailing-rated coax in the SIMATIC RF600 UHF RFID antenna cable family—the one you specify when the antenna moves. The "2" prefix in the part number indicates flexible/trailing duty, meaning this cable is rated for installation in cable carriers, on robot arms, gantry slides, or any application where the antenna and its cable flex repeatedly.

When should I choose the O2YS(ST)CY trailing cable over LMR types?

LMR-195, LMR-300, and LMR-400 are fixed-installation coax types. They are optimized for low loss per meter and are ideal when the cable is routed once through conduit or cable tray and never moves again. O2YS(ST)CY is built for repeated flexing—its conductor stranding, shield construction, and jacket formulation are designed to survive millions of bend cycles in a cable carrier. Choose O2YS(ST)CY when the antenna is mounted on a moving part of the machine. The trade-off is slightly higher insertion loss per meter compared to an equivalent-diameter LMR type; the 15-meter length is a compromise between reach and acceptable attenuation for a trailing installation.

How does cable length affect UHF RFID read range?

Every meter of coaxial cable between the reader and the antenna introduces insertion loss—signal power that never reaches the antenna port. For a passive UHF RFID system operating at 860–960 MHz, cable loss directly reduces both the transmitted power to the tag and the received backscatter signal at the reader. A 15-meter cable run with O2YS(ST)CY coax will have measurably higher loss than a 3-meter LMR-195 run. If your application needs maximum read range and the antenna is 15 meters from the reader, consider whether a thicker cable type (LMR-400 at 40m has comparable loss to thinner types at shorter runs) or repositioning the reader closer to the antenna is feasible. The SIMATIC RF600 system manual provides a loss budget table to help calculate expected read range for each cable type and length.