Interconnect Port Networks
Issue 7 November 2003
5-53
555-233-115
Install Circuit Packs
1. Install the new control circuit packs into carrier “A.”
NOTE:
Currently, the TN768 Tone-Clock circuit pack resides in a port slot of
the universal module being upgraded. Relocate this circuit pack to
the “TONE CLOCK” slot of carrier “A.” Avaya recommends that you
upgrade to the TN2182 Tone-Clock.
2. Install circuit pack blanks in slots not equipped with circuit packs.
3. For directly-connected high reliability with 2 port networks, ensure the PPN
and this EPN are both equipped with a TN776 or TN570 Expansion
Interface circuit pack.
For a directly-connected system with 3 port networks, ensure that the PPN
and each EPN have two TN776 or TN570 circuit packs.
Interconnect Port Networks
You must next install all the fiber optic cabling and then administer it. For the
installation procedure, refer to
‘‘Interconnect Port Networks with Fiber Optic
.
Complete the Upgrade
Verify Usable Circuit Pack Vintages
Verify that each reused circuit pack conforms to the usable vintage requirements
(see Reference Guide for Circuit Pack Vintages and Change Notices).
Remove Power-Failure Ground Wire
Remove the 10 AWG (#25) (2.6 mm
2
) ground wire from the power-failure transfer
unit.
