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
3-14Release 5/6si to Release 8r
3
Disconnect Power and Ground
1. Disconnect the cab inet power cords from the rear of eac h cabinet.
2. Disconnect the 10 AWG (#25) (2.6 mm2) coupled bonding cond uctor wire.
3. Disconnect the 6 AWG (#40) (4.1 mm2) cab inet ground wire from the
ground bar in the c abinet.
Install Emergency Transfer Ground Wire
!CAUTION:

To avoid contaminating single-point g round, do not connec t the ground

strap while the system is powered up.

1. Connect a 10 AWG (#25) (2.6 mm2) wire either to pin 49 of the connecting
block or to pin 49 of the CAP (c able access p anel) associated with the
emergency transfer panel.
2. Route the other end of the wire to an approved ground and connec t.
Disconnect Equipment and Cables
1. Disconnect all of the conne ctor cables attaching to the PPN.
2. Disconnect the PC from the TERM connector.
3. Remove the ground plate(s) from between all of the PPN cabinets.
4. Remove the top and bottom rear cov ers from all of the PPN cabinets.
Remove Circuit Packs
1. Label each port c ircuit pack in the c ontrol cabinet with its slot number.
2. Remove all circuit packs and power units from the control cab inet. Store
the circuit packs in the static-proof packag ing.
NOTE:
If a TN756 tone-detector/generator was removed from the Release
5/6si, a new Release 8r tone clock (TN2182B) replac es this circuit
pack. The TN2182B Tone-Clock replaces the tone detec tor circuits
on the TN756. A TN2182B eliminates the need for a TN748B.