DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r
555-233-115 Issue 1
April 2000
Upgrading R5si/R6si to R8r EPN and Adding Memory
3-4Read This First
3
Site Inspections
For the purposes of a Release 8r upgrad e, most Release 5/6si systems are
already equipp ed with the correct ligh twave transceivers. Any older versions of
these components must be replaced. The earlier versions of light wave
transceivers include d the 4-series transceivers (4A throug h 4F). These
transceivers suppor ted fiber connec tions up to 7,000 feet (2133 m). Order the
correct transceivers ac cording to a separate PEC.
Power and Ground
The new multicarrier PPN cabinet or any EPN cabinet ad ded for the upg rade can
be either AC or DC powered. If an added cabinet is powered differently from the
existing cabinets, the existi ng cabinets do not h ave to be converted sinc e mixed
power configurations are allowed . However, the system’s power and g round
must be modified so the AC powered cabinets are g rounded to the same
single-point ground bar as the DC powered c abinets.
DC Isolator
Each management terminal connec ted to a DC-powered c abinet, by the
asynchronous EIA RS-232 interface, requires a 116A isolator. The isolator is
inserted at the RS-232 interface between the ter minal and the interface
connector to isolate ground between the system and external ad juncts.
Emergency Transfer Stations
During routine operation, the ground for the emergency transfer station s is
derived from the system’s auxiliary c able. Disconnect this g round during the
upgrade to d isable the stations. A ground strap is run to the emergency transfer
panel. Connect this strap shortly after removing power and disconnect it just
before restoring po wer to the upgraded system.
Converting the Translations
The translations in the Release 5/6si system must be copi ed to a spare
translation card and sent to Software Technical Supp ort (STS) to be converted
and written to a Release 8r removable media. This p rocess takes 2 weeks. The
Release 8r media (including 1 with translations) must be on-site before the
upgrade beg ins. For each Release 8r processor, 2 med ia (1 system disk and 1
backup removable m edia) must always be retained on site with the s ystem.