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DC-POWER (Single-Carrier Cabinet Environment)
Issue 1 June 2005 881
If a Carrier Port Power Supply is physically removed from a carrier in a single-carrier cabinet,
there will not be a DC-POWER alarm. DC-POWER maintenance cannot distinguish between
removal of the power supply and the physical absence of the cabinet.
There is a nominal power holdover of.25 second in an PN single-carrier cabinet.
Hardware Error Log Entries and Test to Clear
Values
System Technician-Demanded Tests:
Descriptions and Error Codes
Investigate tests in the order presented. By clearing error codes associated with the
Single-Carrier Cabinet Power Query test, you may also clear errors generated from other tests
in the sequence.
Table 301: Single-Carrier Cabinet Power Error Log Entries
Error
Type
Aux
Data
Associated Test Alarm
Level
On/Off
Board
Test to Clear Value
1
1. UU is the universal cabinet number indicated in the PORT field of the Alarm Log.
0
2
2. Run the short test sequence first. If every test passes, run the long test sequence. Refer to each test’s
description and recommended procedures.
0Any AnyAnytest environment UU
513 0 or 1 Single-Carrier Cabinet
Power Query Test
(#79) on page 882
MAJ ON test environment UU r 2
Order of Investigation Short Test
Sequence
Long Test
Sequence
D/ND
1
1. D = Destructive; ND = Nondestructive
Single-Carrier Cabinet Power Query test (#79) X X ND
Emergency Transfer Query test (#124) (a
)XXND
External Alarm Lead Query test (#120) (b
)XXND
Analog Ring Generator Initialization test (#117) (c
)X X ND
Analog Ring Generator Query test (#118) (c
)XXND