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4.15: Replacing the Low-Speed Channel–DS1
(LC1A-D1xx) Unit
Issue 9, May 1999
FNC and FNC Customer Use Only
Vol. ll, Page 480.4-66
Maintenance and Trouble Clearing
FJTU-320-515-480
4.15.2
Procedure
Step 1
If you have a known-good LC1A unit, use it to replace the original unit, or locate
another unit and inspect if for damage, debris, and foreign objects. Figure 4-39
shows the front panel and hardware option locations for the LC1A-D1 and
LC1A-D1E units.
Note: The line buildout (LBO) settings for the LC1A-D1E2 unit are software provisioned.
Step 2
Set the option switches on the new unit to the same positions used on the
removed unit.
Step 3
Install the replacement LC1A unit. Is the LINE LED off and the FAIL/SVCE
LED green?
Step 4
Check the incoming signal at the DSX-1/DSX-3/STS-1 bay. Is the signal present
and error-free at the DSX?
Step 5
Repeat trouble analysis procedures. Refer to Section 2, Plug-In Unit Front-Panel
Devices. Is the LINE LED off and the FAIL/SVCE LED green?
Note: The Hardware Data Record form is provided in Appendix A of the Plug-In Unit
Installation practice, FJTU-320-515-220.
You have completed this procedure.
If Yes:
If No:
Complete your fault-reporting documentation.
You have completed this procedure.
If Yes:
If No:
The source of the problem is not the FLM 150 ADM.
You have completed this procedure.
If Yes:
If No:
Complete your fault-reporting documentation.
Call the Fujitsu Technical Assistance Center at
1-800-USE-FTAC (1-800-873-3822) for assistance.
Summary of Contents for FLM 150 ADM
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