Chapter 7: Service and troubleshooting
P/N 3101890-EN • REV 006 • ISS 21JUN18 137
Table 52: Local trouble pseudo points
Label Source Description
Class A Fault ANN Device ANN There is a fault or break in the Class A loop on
the annunciator bus
Class A Fault Video Bus ANN There is a fault or break in the Class A loop on
the video bus
Annunciator Supervision ANN The control-
indicating module is faulty or missing,
or is not properly configured
Rail Module Communication
Fault
ANN There is a local rail communication failure in the
cabinet
Video Communication Fault ANN There is a fault or break in the video signal lines
RAM Fault or Stack Fault ANN There is a fault in the internal annunciator bus
processor
Code Supervision ANN The executable program is corrupt
Internal Fault ANN There is an annunciator bus hardware failure
Configuration Fault ANN A control-display module is in the wrong slot
Database Supervision ANN The database is corrupt
Task Failure ANN A SAC task fails to run
Annunciator Supervision General The control-indicating module is faulty or missing,
or not properly configured
Network Class A Failure CPU There is a fault or break in the Class A / X
network data riser connection
Communication Fault
PS10-4B A communication fault occurred between the
CPU and the PS10-4B module
Rail Module Communication
Fault
General There is a local rail communication failure in the
cabinet
Ground Fault Detection CPU
There is a ground fault with a cabinet component
or in field wiring
Audio Supervision CPU A short or open is detected on the audio data
circuit
Internal Fault General There is a CPU hardware failure
Database Supervision General The database is corrupt
DB Supervision Audio Default
Tone
EAEC • No message is present
• There is a problem erasing flash
• The message space fails internal checks
Code Supervision General The executable program is corrupt
Auxiliary Port One CPU A short or open is detected on the port 1 serial
communication circuit
Data Card Fault One SLC The VM-SLC card on the loop controller is
missing or loose
Bootloader Supervision EAEC The audio controller bootloader code is corrupted