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Addressable Smoke Detectors, Monitor Modules and Control Modules
For addressable devices connected to the SLC loop, the following is a typical message that
could appear on the LCD display for a device trouble:
The information displayed in the above example provides the following information:
• First line in display:
✓The type of event; in this example TROUBL indicating a device trouble
✓Device type identifier; in this example, SMOKE (PHOTO) indicates a
Photoelectric smoke detector. Other device type identifiers which can be
displayed include SMOKE (ION) for Ionization Detector, HEAT for Heat
Detector, CONTROL for Control Module and MONITOR for Monitor Module,
PULL STATION for a manual pull box, etc. Refer to "Edit Detector" on page 44,
"Edit Module Screen for Monitor Module" on page 54 and "Edit Module Screen
for Control Modules" on page 63 for information on additional device types.
• Second line in display:
✓<ADJ>; refers to the user programmed adjective descriptor from library list
resident in the control panel or custom entry via PC.
✓<NOUN>; refers to the user programmed noun descriptor from library list
resident in the control panel or custom entry via PC.
• Third line in display: INVREP indicates an invalid reply from the addressable
device. Other possible troubles include:
❒ SHORT - indicating a shorted circuit on an addressable device
❒OPEN - indicating an open circuit on an addressable device
❒DIRTY1 - maintenance alert indicating that a detector is near but below the
allowed alarm limit and is in need of maintenance before the performance is
compromised
❒DIRTY2 - maintenance alert indicating that a detector needs immediate
maintenance since it has been within 80% of its alarm threshold for 24 hours
❒INVREP - maintenance alert indicating a hardware problem in the detector
❒TEST F - indicating a detector has failed the automatic test operation which
functionally checks its sensing chamber and electronics
❒INV ID - indicating that an incorrect device code (Type ID) has been
programmed for an installed device (for example, Photo has been programmed
but an Ion detector has been installed)
❒SW TBL - indicating a module has failed the testing of its Class A switching
relay
• Fourth line in display:
✓Time; the current time in this example is 10:00A which represents 10:00 AM
✓Date; the current month, day and year in this example is 01 for January, 08 for the
8th day of the month and 01 for the year 2001
✓Device Address; 1D001 in this example 1 represents SLC Loop1, D represents a
detector and 001 represents device address 001
TROUBL SMOKE (PHOTO) <ADJ> <NOUN> INVREP 10:00A 010801 1D001