User Guide

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-390DATA-CHL (Network Control Data Channel)
10
Always investigate tests in the order presented in the following tables when
inspecting errors in the system. By clearing error codes associated with the
Data
Channel Reset Test,
for example, you may also clear errors generated from other
tests in the testing sequence.
Note:
a. Determine if CDR, System Printer, Journal Printer, and/or PMS Links are
using the DATA-CHLs and busyout these links if it is necessary to use the
test network-control [a | b] long command.
1. D = Destructive; ND = Nondestructive
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
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 10-107. 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
Switch Control Reset Test (#93) (b) X D
EPN Maintenance Board Interface Test (#325) (b) X D
Time-of-Day Clock Test (#95) (b) X X ND
Control Channel Interface Test (#92) (b) X X ND
Control Channel Transmission Test (#94) (b) X X ND
Continued on next page