
MR-2900 Operator’s Manual
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2.0 Supplementary Information
2.1 Diagnostic LEDs
There are 6 LEDs in the middle of the right edge of the Inner Door Assembly for diagnostic
purposes. They are used as follows:
1. extended memory in use
2. addressable database in use
3. follows coded bells
4. not used
5. not used
6. database transfer to co-processor.
2.2 Condition Codes and Zone Numbers
The Alarm List and Archive use the following formats for condition codes and zone numbering.
Condition Code
Archive
Alarm List Description
A ALARM Alarm
B bypass Bypass
C com Comlink
D dupl Duplicate Addressable Device
E alert Maintenance Alert
G ground Ground Fault
H Hot Key Pressed
I ilgl Illegal Addressable Device
J Switch
M msng Missing Addressable Device
N nofire Non-Fire/Non-Reporting
P M.PULL Pull Station Alarm
Q abort Releaser Abort
R halt Releaser Halt
S spv Supervisory
T trbl Trouble or Parameter Change
U wrong Wrong Device Type
W WFLOW Waterflow Alarm
A plus sign (+) refers to a new or on condition, a minus sign (-) refers to a restoral or off condition,
and an equal sign (=) refers to a one time event.
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