R Series Beacon Accessories Auer Signal R Series Beacon Accessories include bases, metal brackets, flat gaskets, and cable glands. The bases come in variants, including a standard base for horizontal mounting, a universal base for horizontal, pole, and NPT 1/2' conduit mounting. The brackets include an RWD plastic design bracket, an RWU metal bracket for wall mounting, and an RWA Metal bracket for audible bases. The RBA audible bases have a 32-tone sounder with 95dB maximum sound pressure. The RG1 flast gasket is designed for R-series bases for sealing onto smooth housing, while the RG2 flat gasket is designed for mounting the RWD designer bracket on walls. The RKV cable gland offers a clamping range of 4mm to 10mm.