The 6GT2815-0BH30 is a 3-meter pre-assembled coaxial antenna cable with R-TNC sockets at both ends, built with LMR-195 coax. At 3 meters, this is the standard short jumper length in the RF600 family—enough to connect a reader to an antenna mounted in the same cabinet, on the cabinet door, or on a bracket directly adjacent to the enclosure.

Why 3 meters instead of the 1-meter version?

The 1-meter cable (6GT2815-0BH10) is a direct port-to-port jumper for antenna and reader ports that sit physically adjacent—same DIN rail, same panel face. The 3-meter version gives you enough slack to route through wire duct, around other DIN rail equipment, and up to an antenna mounted on the cabinet ceiling or door. At 3 meters and 900 MHz, LMR-195 introduces roughly 0.5 dB of loss—negligible in practice. Choose the 3-meter when the antenna is in the same enclosure but not right next to the reader; use the 1-meter for direct adjacent connections.