Honeywell INTEVIO User Manual page 126

No. Fault
11 Speaker Line xx - Open
12 Speaker Line xx - Short
13 Speaker Line xx - Earth
14 Contact Input xx -Open
15 Contact Input xx - Short
Fire Alarm Interface (RS-
16
485)
17 Network
Causes
Some loudspeakers on the
speaker line are disconnected
or not calibrated.
The speaker line has shorted,
is overloaded, or not
calibrated.
The impedance between
speaker line and the ground is
lower than the threshold.
The wiring of the contact input
is open or disconnected.
The wiring of the contact input
is shorted.
The possible reasons are:
- The connection between
MCU and LPI-ModBus module
is short, open or reversed.
- The connection between LPI-
ModBus module and fire alarm
control panel is faulty.
- No power supply to LPI-
ModBus module.
- Mistakes in configuration
The possible reasons are:
- No connection or wrong
connection from device to
MCU.
- Device is powered off.
- No end-of-line resistor is
connected to the
communication bus.
Actions
Please check the connection
of loudspeakers on the
speaker line. If no issue is
found, please calibrate the
device.
Please check the connection
of loudspeakers on the
speaker line. If no issue is
found, please calibrate the
device.
Please check the speaker
line; fix the earth points.
Please check the wiring of
contact input.
Please check the wiring of
contact input.
Please check the connection
from fire alarm control panel
to MCU, the power supply of
LPI-ModBus module and the
related configuration.
If you don't use the fire alarm
interface, please disable its
supervision.
Please check the connection
of the communication bus and
make sure the last device is
connected to an end-of-line
resistor.
Please check the power
status of all the devices on
the communication bus.
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