3.3.1 Replacing the UBFU..............................................................................................................................3-5
3.3.2 Replacing a UPEU.................................................................................................................................3-7
3.3.3 Replacing the UEIU.............................................................................................................................3-10
3.3.4 Replacing the GTMU...........................................................................................................................3-11
3.3.5 Replacing the UELP.............................................................................................................................3-15
3.3.6 Replacing the Optical Module..............................................................................................................3-16