Procedure 11.54: DEGROW DNU-S VT1.5/DS1 FACILITY
5E13(1) AND LATER
OVERVIEW
This procedure degrows Digital Networking Unit - SONET (DNU-S) Virtual Tributary 1.5/ Digital Signal 1
(VT1.5/DS1) facilities for 5E13(1) and later software releases. It accommodates the changes to numbering VT1.5
facilities from 1-28 to the newer VT Groups 1-4 and VT Members 1-7.
This procedure requires that all digital trunks or other applications on the selected DS1 be previously unassigned.
Refer to 235-080-100 TG-5, Division 8, Section 60, "FORM AND RECORD ENTRIES", "* VT" for tables showing
these relationships.
To degrow DNU-S VT1.5/DS1 facility for 5E12(1) and earlier software releases, refer to
Procedure 11.30
.
To degrow DNU-S SONET Termination Equipment (STE) facilities and the Synchronous Transport Signal (STS-1)
facilities for 5E13(1) and later software releases refer to
Procedure 11.33 .
Safe Stop Points are provided in the procedure set where progress in the performance of a procedure may be
suspended temporarily without causing degradation in the operation of the equipment. Performance of the
procedure can be halted at one of these points only if all prior steps within the procedure have been successfully
completed.
PROCEDURE
1.
Degrow DNU-S VT1.5/DS1 Facility
5E13(1) and later
11.54.1 Verify and Set Initial Conditions
1.
At Master Control Center (MCC), observe Summary Status Area for a SYS NORM indication.
2.
If a SYS NORM indication is not obtained, type and enter the following command:
OP:SYSSTAT
;
3.
At the MCC, type and enter the following command:
OP:OFFNORM,SM=
a;
Where:
a =
Switching Module-2000 (SM-2000) number.
4.
Evaluate system response to determine if system status is acceptable to continue. Specific attention is
required for areas that can cause SM-2000 isolation or service impact during this VT1.5/DS1 Facility
degrowth procedure. Correct any deficiency as required.
NOTE:
Steps 5 and 6 are recommended but not required. Local practices should control their use. If REX is
inhibited, it must be allowed at the conclusion of this growth procedure.
5.
At the MCC, type and enter the following command:
235-105-210
October 1999
Copyright © 1999
Page 1
Summary of Contents for 5ESS-2000
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