Appendix J: MJ-4A & MJ-4B Jumpers and Battery Replacement
76 Siemens Energy, Inc.
J MJ-4A & MJ-4B Jumpers and Battery Replacement
J.1 MJ-4A & MJ-4B Jumpers
The locations of the MJ-4 jumpers and battery are shown in the drawing below. The table on the next page describes the
jumpers and the default settings.
Figure J.1 MJ-4A & MJ-4B Jumpers.
SIEMENS MJ
J2
JP9
1
1
2
2
J1
J9
J9
J1
1
1
1
1
2
2
2
2
1
11
1
11
2
22
2
22
3
33
3
33
J22
J22 J22
J23
J23 J23
Jumpered for DCE
(Default)
Pins 1 & 2 Jumpered
(Default)
Pins 1 & 2 No Jumper
(Default)
No Jumpers
(Default)
Jumpered for DTE
Battery (BT1)