20
Chapter 1 Overview .............................................................................................................. 36
1. Features of this BBU .................................................................................................................. 36
2. Specification ............................................................................................................................... 36
3. Installation Flow ......................................................................................................................... 37
4. Functions of Parts ...................................................................................................................... 38
1. Installation Procedure................................................................................................................. 43
1. Maintenance Service .................................................................................................................. 48
2. Preventive Maintenance ............................................................................................................. 48
Chapter 4 Refresh ................................................................................................................ 50
4-1. Refresh ................................................................................................................................... 50
4-3. Regular refresh ....................................................................................................................... 51