CARR-POW (Carrier Port Power Unit) for AC-Powered
Systems
Issue 4 May 2002
10-371 555-233-123
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order presented in the table below when inspecting
errors in the system. By clearing error codes associated with the Battery & Battery
Charger Query Test, for example, you may also clear errors generated from other
tests in the testing sequence.
Notes:
a. Refer to POWER (Battery & Battery Charger) Maintenance documentation
for a description of this test.
b. Refer to AC-POWER (AC Power) Maintenance documentation for a
description of this test.
c. Refer to EMG-XFER (Emergency Transfer) Maintenance documentation
for a description of this test.
d. Refer to CABINET (Cabinet Sensors) Maintenance documentation for a
description of this test.
e. Refer to EXT-DEV (External Alarm) Maintenance documentation for a
description of this test.
f. Refer to RING-GEN (Analog Ring Generator) Maintenance documentation
for a description of this test. This test only shows up in the test sequence if
there is a TN768 Tone-Clock circuit pack in the port network being tested.
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
1 D = Destructive; ND = Nondestructive
Battery & Battery Charger Query Test (#5) (a) X X ND
AC Power Query Test (#78) (b) X X ND
Power Unit Query Test (carrier E) (#127) X X ND
Power Unit Query Test (carrier D) (#127) X X ND
Power Unit Query Test (carrier A) (#127) X X ND
Power Unit Query Test (carrier B) (#127) X X ND
Power Unit Query Test (carrier C) (#127) X X ND
Emergency Transfer Query Test (#124) (c) X X ND
Cabinet Temperature Query Test (#122) (d) X X ND
External Alarm Lead Query Test (#120) (e) X X ND
Analog Ring Generator Initialization Test (#117) (f) X X ND
Analog Ring Generator Query Test (#118) (f) X X ND
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