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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
3-19Synchronization Installation and Testing
3
Installing and testing the splitter
The splitter must be installed and tested before the upgrade and cutover. The
purpose of testing the splitter is to
■ Prove that there is enough signal level for the cable length to the ATM
switch:
— up to 130 ft. (39.65 m) for 400A
— within the standard 6 dB allowable loss for 401A, 402A, and 403A
(see
Table 3-3
)
■ Ensure that the DS1 circuit pack functions properly while receiving the
DS1 signal level output from the splitter (Ports J1 and J2 unterminated).
Table 3-7
shows the configurations of the test cable and ports on the sync
splitter.
Splitter port tests (401A/401A only)
NOTE:
The standard RJ45-to-Bantam test cable does not work with the 403A.
To test the splitter ports J1 or J2, use the procedures in
Table 3-8
, using the RJ45
to Bantam Test cable from the 1541CC cable kit.
Table 3-7. Cable and port configurations for splitter tests
To test Description
Port J1 Insert an opening plug into port J2
Port J2 Insert an opening plug into port J1
Maximum output of the splitter
to the DS1 circuit pack
Insert an opening plug into both ports J1 and J2
Continued on next page