2 layers148.8 × 116.9 mm

Boards in 2 GitHub repositories, designed in KiCad, that use the AM26C31MDREP by Texas Instruments (-55℃~+125℃ 4.5V~5.5V SOIC-16 RS-485 / RS-422 ICs ROHS). See how each wires it, with its parts, size, README and files; the AM26C31MDREP’s symbol, footprint and pinout are on its own page.