28         92    2                       257
                                                                 89               15
                                                                                15
                                                                  6        (       (BL2)          (BL1)
                              (BL37)            (BL38)           (BL39)                 (BL40))
                 4                                         (Coded Manual)                    CM Mode
                     (ATP      )
                 5                                                        (             )
                                 (             )
                 6                  (TRTS(Train Ready to Start) Push bottom)                         TRTS
                                                                                     (TWC      Train-way-
                     side communication)
                     TWC
                                                                   TWC
                 7                                                                                    87
                     12
                          (          )            3                3               (
                                       2.7     )
                 8
                 9                (                            )                         (        )
                                               ✎                       ✎
               [1] http://www.dorts.gov.tw
               [2] http://www.trtc.com.tw