EMG-XFER (Emergency Transfer)
Issue 1 May 2002
8-739555-233-143
System Technician-Demanded Tests:
Descriptions and Error Codes (Single-Carrier)
Always investigate tests in the order presented in the following table. For
example, by clearing error codes associated with the Power Query test (#79), you
may also clear errors generated from other tests in the testing sequence.
Notes:
a. See ‘‘DC-POWER (Single-Carrier Cabinet Environment)’’ for a description
of this test.
b. See ‘‘EXT-DEV ADMIN? Y (External Device Alarm)’’ for a description of
this test.
c. See ‘‘RING-GEN’’ for a description of this test.
NOTE:
These tests only show up in the test sequence if there is a TN768
Tone-Clock Board in the EPN being tested.
Emergency Transfer Query Test (#124)
The Emergency Transfer Query test queries the hardware for the state of the
Emergency Transfer switch (or switches in a duplicated SPE system) and reports
the result. If the position of the switch in a single (or switches in a duplicated) SPE
cabinet or an PN cabinet is such that the system software can control Emergency
Transfer (auto), then the test passes. If the position of the switch or switches is
such that the system software cannot control Emergency Transfer (manual “on” or
manual “off”), then the test fails. The PPN’s SYSAM and an PN’s Maintenance
Tone-Clock controls Emergency Transfer.
Single-Carrier System
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
1. D = Destructive; ND = Nondestructive
Power Query test (#79) (a) X X ND
Emergency Transfer Query test (#124) X X ND
External Alarm Lead Query test (#120) (b) X X ND
Analog Ring Generator Initialization test (#117) (c) X X ND
Analog Ring Generator Query test (#118) (c) X X ND
To Next Page
Loading...
