The R-REF04-RIA12-1 and R-REF04-RIA12-2 are complete reference designs for railway applications. The R-REF04-RIA12-1 board is populated with components rated for higher DC input voltages up to 110VDC nominal input; the R-REF04-RIA12-2 board is populated with components rated for higher DC input currents up to 10A. Both boards are input-side fused and can be used with DC/DC converters with single output currents up to 45A. The reference designs include a RIA12-conform surge stopper capable of blocking surge voltages up to 385VDC. The universal pinout accommodates DC/DC converters with 2”x1”, quarter brick or half brick standard case dimensions including the entire RECOM portfolio of railway DC/DC converters up until 240W. The reference designs, samples of DC/DC converters and OEM pricing are available from all authorized distributors or directly from RECOM.