Lucent Technologies R5SI User Manual
DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1301
STRAT-3 (Stratum 3 Clock)]
10
System Technician-Demanded Tests:
Descriptions and Error Codes
Descriptions and Error Codes
Always investigate tests in the order presented in the following table when
inspecting errors in the system. By clearing error codes associated with the
inspecting errors in the system. By clearing error codes associated with the
Stratum 3 Clock Alarm Query Test,
for example, you may also clear errors
generated from other tests in the testing sequence.
Stratum 3 Clock Alarm Query (#649)
The Stratum 3 clock provides the system with the following six alarm indications
via the TN780 Tone-Clock circuit pack:
via the TN780 Tone-Clock circuit pack:
1. Reference A failed or CI card A failed.
2. Reference B failed or CI card B failed.
3. One power supply failed.
4. All power supplies failed.
5. One clock unit failed.
6. All clock unit(s) failed.
This test queries the Stratum 3 clock for its alarm status (through the TN780
Tone-Clock circuit pack) and reports the results of the query.
Tone-Clock circuit pack) and reports the results of the query.
!
WARNING:
The removal of a card in the Stratum 3 clock may cause alarm(s) to be
resolved and the query test to pass. However, the removed cards should
still be replaced to restore the Stratum 3 clock to full service.
resolved and the query test to pass. However, the removed cards should
still be replaced to restore the Stratum 3 clock to full service.
1.
D = Destructive; ND = Nondestructive
Order of Investigation
Short Test
Sequence
Sequence
Long
Test
Sequence
Test
Sequence
D/ND
1
Stratum 3 Clock Alarm Query (#649)
X
X
ND