Lucent Technologies Comcode 108678723 manual DTE loopback testing for the 316X DSU/CSU

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

3Installing a DEFINITY ECS ATM-PNC

	Synchronization Installation and Testing			3-28
Table 3-14. DTE loopback testing for the 316X DSU/CSU —
√	Step	Action	Command	Description
	4.	Continue		Press the button under “DLB.”
				Test Started displays. The 316X is now in
				DTE loopback.

5.	Test the circuit	test board
	pack	UUCSS

At the DEFINITY management terminal.

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

6.	Run error	list	Wait 15 minutes and verify that the DS1 circuit
	report	measurements	pack is free of any errors.
		ds1 summary	Use Table 3-6 to interpret the periodic list
		UUCSS
			measurements report.
7.	Terminate the		Press the double-up arrow button.
	DTE loopback
	test
8.	Go through the		Press the button under “test.”
	readout steps
9.	Continue		Press the button under “lpbk.”
10.	Continue		Press the button under “abort.”
11.	Continue		Press the button under “all.”
12.	Continue test		If all tests pass, and the splitter, cabling, and
	procedure		316X CSU or DSU/CSU are working properly,
			go to the ‘‘RLB loopback procedure’’ on page
			3-28.

RLB loopback procedure . To start the RLB loopback testing at the 316X CSU or DSU/CSU, use the procedures in Table 3-15.

Table 3-15. RLB loopback testing for the 316X DSU/CSU

√	Step	Action	Command	Description
	1.	Start the test.		Press the double-up arrow button.
	2.	Go through the		Press the button under “Test.”
		readout steps
	3.	Continue		Press the button under “Lpbk.”