
SEBU8088-06 51
Operation Section
Features and Controls
Annun ciator Module
g01101388
Illustration 46
General Information
The annunciator module is used to indicate various
system events and conditions. The annunciator
module uses indicator lights and an audible horn
to give the operator information about the current
status of the system. The annunciator module can
be used to announce faults and/or status signals to
the operator. The annunciator module allows the
operator to silence the horn. The annunciator module
also allows the operator to acknowledge faults to the
system.
There are seventeen pair of LED indicators on
the annunciator’s front panel. Sixteen pair of LED
indicators are used to announce events, diagnostics,
and ready signals. The seventeenth pair of LED
indicators is used as a combined network/module
status LED. The seventeenth pair of LED indicators
can tell the operator if there is a problem with the
J1939 data link connection.
Basic O peration
Each pair of LED indicators on the annunciator
consists of two of the following three colors: green,
yellow, and red. For example, a pair of red and
yellow LED indicators may be configured for engine
oil pressure. If a low engine oil pressure warning is
read over the data link, the annunciator will flash the
yellow LED and the audible horn will sound. If the low
engine oil pressure shutdown is read over the data
link, the annunciator will flash the red LED and the
audible horn will sound.
To acknowledge
the shutdown and alarm conditions
or to silence the horn, press the “Alarm Acknowledge”
button that is located near the middle of the
annunciator.
To test the LED indicators or to test the horn when the
datalinkisc
onnected or the data link is disconnected,
hold in the “Lamp Test” button that is located near
the top of the annunciator.
Configuration
The annuncia
tor module can be customized in order
to signal many different conditions that are related to
the system. Each pair of LEDs must be configured by
using the app
ropriate service tool. Once the service
tool has been connected to the annunciator, the user
must enter the “Configuration” screen. Each pair of
LEDs has fou
r settings: SPN, Trigger Type, Trigger
Severity Level, and Failure Mode Identifier (FMI).
For detail
ed information about the annunciator
module, see Systems Operation, Troubleshooting,
Testing and Adjusting, RENR7902, “EMCP3”.