傳輸維運支援系統 傳輸中介設備 監視與控制系統 非同步數位階層 設施及設備維修站 電傳測量非同步組塊信息串 電傳測量位元組導向信息串 交易語言1 Transmission operation support system Mediation device Monitor and control system Plesiochronous digital hierarchy Facility equipment maintenance station Telementry asynchronous block serial Telemetry byte oriented serial Transaction language 1