Advant
®
Controller 450 User’s Guide
Section D.6 Circuit Boards and Units
3BSE 002 415R701 Rev A D-7
D.6 Circuit Boards and Units
Connectors on the Front
Connectors on the front are numbered X1, X2, and so on, from the top downward. With several
circuit boards in a unit, the boards are designated 1, 2, 3, and so on, and the connectors on the
different boards are designated X21, X22, X31, and so on.
Other plug-in circuit boards in the front of the units have sequential numbers 1, 2, 3, and so on.
Connectors on the Rear Side
Connectors are numbered X1, X2, and so on, from the top downward.
Figure D-10. Numbering of Submodules and Connectors on the Front
Figure D-11. Numbering of Connectors on the Rear Side
X1
X2
1
2
Module front
with contacts
Module front with
slots for submodules
1
X21
X22
X31
2
X1
X1
(Slot)
(Slot)
Front of unit with several contacts
and slots for submodules
12
3
Numbering of
circuit boards
(Slot)
(Slot)
S2 S1
X1
X2
Jumper group
Front Rear side