B.按LOCAL/REMOTE按钮,将所有与更换CDU有关的TRU置于LOCAL状态,LOCAL灯由闪至亮,表明TRU已处于LOCAL
C.更换CDU
D.重新配置IDB
E.按DXU上的CPURESET,则此时新的CDU数据将会LOAD至数据库IDB
F.按TRU上的LOCAL/REMOTE,使TRU处于REMOTE状态,此时为OPERATION
How many Timeslots do each TRU use on the A-bis link when utilizing the three different methods of lapd signaling?