Instruction manual

UPGRADES AND ADDITIONS
System 75 XE Upgrade To DEFINITY Generic 1 PPN Without
Duplication
The System 75 XE Versions 2 (V2) or 3 (V3) upgrade to DEFINITY Generic 1 requires the follow-
ing:
Replacing the J58890G-1 Control Cabinet with a J58890L-1 Basic Control Cabinet con-
taining the following
— Tape Drive circuit pack TN774
— Processor TN773
— Memory TN770
— Network Control TN777
Replacing the TDM cables with WP91716 L3 TDM cables if required
Adding a TN765 Processor Interface circuit pack if required
Replacing the TN756 Tone Detector/Generator circuit pack with a TN768 circuit pack and
a TN748 Tone Detector circuit pack when DS1, ISDN, or EPN applications are required
Installing the old port circuit pack in the new J58890L-1 cabinet
Replacing the software tape
Activating and administering new features
If an EPN is required, an Expansion Control Cabinet is added. The TN776 Expansion Interface
circuit pack is added to the Basic Control Cabinet. A fiber cable connects the Expansion Inter-
face circuit packs.
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