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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Installing a DEFINITY ECS ATM-PNC
3-3Synchronization Installation and Testing
3
Synchronization Installation and
Testin g
A DEFINITY ATM-PNC requires network synchronization for DS1 circuit packs not
to slip relative to the LEC/IXC switches. The ATM switch serves as the sync
reference source for the DEFINITY. The ATM switch, in turn, derives primary and
secondary sync. To accomplish this, the most common option is to use
synchronization expanders (splitters).
7. Connect the fiber
optic cables to the
ATM interface circuit
packs
Connect fiber optic cable to the SC connector on the
faceplate of each TN2305/TN2306 circuit pack in the
DEFINITY PPN and EPN.
■ The TN2305/TN2306 circuit pack interface requires SC
connectors (see Note in Step 5).
■ Do not reuse existing fiber cabling with ST connectors
at both the DEFINITY switch and the ATM switch. This
requires an ST-to-SC adapter at both ends. It is better
to order the cable with the SC connectors at both
ends.
8. Record configuration Record DEFINITY ECS switch-to-ATM port (port locations
for each ATM circuit pack) in Table A-1
(in Appendix A,
‘‘Baselining the Customer’s Configuration’’).
NOTE:
Read the MAC addresses from the ATM switch (refer
to your ATM switch’s quick reference guide) and
record them in Table A-1
.
9. Record fiber
connections
Record the fiber optic cable runs on the lightwave
interface (LIU) diagram (Figure A-1
) in Appendix A,
‘‘Baselining the Customer’s Configuration’’.
10. Install and test
synchronization
splitter, if required.
Follow the procedures for installing and testing the
synchronization splitter and the T1 or E1 timing source in
‘‘Synchronization Installation and Testing’’ on page 3-3
.
Table 3-1. General installation process
√ Step Action Description
Continued on next page