Lucent Technologies Comcode 108678723 manual Troubleshooting synchronization 401A/402A/403A

DEFINITY ECS Release 8.2 ATM Installation,	Issue 1
Upgrades, and Administration 555-233-124	April 2000
6 Troubleshooting
Troubleshooting ATM-PNC	6-21

Troubleshooting synchronization (401A/402A/403A)

To troubleshoot 401A/402A/403A synchronization problems, follow the procedures in Table 6-9.

Table 6-9. Troubleshooting 401A/402A/403A synchronization

√	Step	Action	Description
	1.	Check all connections	If the LEDs on the DS1 circuit pack indicate an error
			condition, or any of the tests associated with testing the
			DS1 circuit pack fails, recheck all cables, connectors, and
			the splitter connection to the back of the DS1 circuit pack.
	2.	Test the circuit pack	Test the circuit pack (test board UUCSS).
			If the tests pass, go to step 13 (release). If a test fails,
			continue with step 3.
	3.	Reseat circuit pack	Reseat the DS1 circuit pack.
	4.	Retest the circuit	Repeat the test (test board UUCSS).
		pack	If Tests 138 through 145 pass, go to step 13 (release).
			If any test fails, go to step 5.
	5.	Busyout the DS1	To suppress alarms on the DS1 circuit pack, type busyout
		circuit pack	board UUCSS and press Enter.
	6.	Remove splitter	Remove the splitter from the DS1 circuit pack.
	7.	Connect cable	Reconnect the cable directly to the back of the DS1 circuit
		directly on DS1 circuit	pack (without the splitter) and reseat the DS1 circuit pack.
		pack	After approximately 30 seconds the DS1 Status LEDs
			should extinguish, leaving only the green Status 3 LED on
			steady.
	8.	Test the circuit pack	Test the circuit pack (test board UUCSS) and verify that
			the DS1 circuit pack passes Tests 138 through 145.
			If any one of Test 138 through 145 fails, follow the repair
			procedures listed in DEFINITY ECS Maintenance for R8r.
	9.	Replace splitter	If the tests pass, replace the splitter onto the back of the
			DS1 circuit pack.
	10.	Reseat the circuit	Reseat the DS1 circuit pack and check the Amphenol
		pack	connectors, making sure they are seated properly.
	11.	Test the circuit pack	Test the circuit pack (test board UUCSS) and verify that
			the DS1 circuit pack passes Tests 138 through 145.

If any one of Test 138 through 145 fails, follow the repair procedures listed in DEFINITY ECS Maintenance for R8r or replace the splitter.