Instruction manual

UPGRADES AND ADDITIONS
UPGRADES AND ADDITIONS
The upgrade process consists of changing the hardware and software of the a previously
installed system to that of a later version system. An upgrade may be performed in response to
increased call processing demands, need for greater feature capabilities, or other changes in
customer requirements.
The addition process consists of adding voice terminals, circuit packs, carriers, or software
features to an existing system without upgrading the version of the system.
The following provides a synopsis of the upgrades and additions process for DEFINITY Commun-
ications System Generic 1 and Generic 3.
For specific details on the upgrade process and associated administration, refer to the DEFIN-
ITY  Communications System Generic 1 and Generic 3i—Upgrades and Additions , 555-204-
106, or DEFINITY  Communications System Generic 3r—Upgrades and Additions , 555-230-
106.
System 75 Upgrade to DEFINITY Generic 1 PPN
Without Duplication
The System 75 Versions 1 (V1), 2 (V2), or 3 (V3) upgrade to DEFINITY Generic 1 requires the
following:
Replacing the J58890AA-1/J58890AB-1 Control Carrier with a J58890AH-1 Control Car-
rier
Replacing TN711 Processor circuit pack with a TN773 Processor circuit pack
Replacing TN734 Memory circuit packs with a TN770 Memory circuit pack
Replacing TN727 Network Control circuit pack with a TN777 Network Control circuit pack
Replacing TN741 Tone Clock circuit pack with a TN768 Tone Clock circuit pack
Replacing the TDM cables with new WP91716 L1 and L2 TDM/LAN cables
Adding a new TN774 tape drive circuit pack and removing the HCMR/RMSS tape drive
Adding a TN765 Processor Interface circuit pack if required
Replacing the software tape
Activating and administering new features
If an Expansion Port Network (EPN) is required, an EPN cabinet is added. A TN776 Expansion
Interface circuit pack is added to the Processor Port Network (PPN) cabinet. A fiber link con-
nects the Expansion Interface circuit packs.
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