DATA-CHL (Data Channel)
Issue 4 May 2002
10-487 555-233-123
Investigate errors in the order they appear in the table below.
a. These tests are destructive.
1. Determine if there are any active links:
■ CDR (status smdr-link)
■ System printer (status sp-link)
■ Journal printer (status journal-link wakeup-log and status
journal-link pms-log)
■ PMS links (status pms-link).
2. Busyout links if necessary:
■ CDR (busyout smdr-link)
■ System printer (busyout sp-link)
■ Journal printer (busyout journal-link wakeup-log and
busyout journal-link pms-log)
■ PMS links (busyout pms-link)
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
1 D = Destructive; ND = Nondestructive
Data Channel Reset Test (#107) (a) X D
Data Channel Dual Port Ram Test (#108) (a) X D
Data Channel Remote Maintenance Loop Around Test (#109) X X ND
Data Channel Local Loop Back Test (#111) X X ND
Data Channel Crosstalk Test (#110) X X ND
Table 10-178. System Technician-Demanded Tests: DATA-CHL
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
Control Channel Test (Common Port Circuit Pack) (#52) (a) X ND
NPE Audit Test (Common Port Circuit Pack) (#50) (a) X X ND
Data Channel Reset Test (#107) X D
Data Channel DPR Test (#108) X D
Data Channel Maintenance Loop Around Test (#109) X X ND
Data Channel Crosstalk Test (#110) X X ND
Data Channel Local Loop Back Test (#111) X X ND
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