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CHAPTER 8: INSTALLING THE 7500
9. The data modules connect to the digital lines in one of the two ways:
Using WP90780 L3 (NT1) or WP90780 L4 (UWP) adapter
Using individual D8W line cords.
10. If you are using an L3 or L4 adapter to connect the modules to the digital lines, plug the
adapter into the 25-pair cable coming from the switch. (This cable should be wired according to
Table L or M, shown at the end of the instructions, as applicable.)
The L3 and L4 adapters have eight loose ends (1) that are numbered to identify the
numbered slots in the mount to which they belong.
L3 or L4 Adaptor
Figure 43:
122
L3 or L4 Adapter
C a b l e f r o m S w i t c h
1
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