TP-312 LED航空标志牌说明书 * 3.5 module sign length is designed to the maximum length compliant with TP-312 standards.Number of sign 4 (1) tether on each module N sided legend sign Legend panel PRO APF AGS-LED, TP312 Part number example 312S–AP13S–15–B–C–B–2–D–E–2 PRO...