INS154-7 7/17
N To comply with EN50131 requirements at Grade 3 the bell trigger should be
pulled high by the control equipment. When connecting to some third party
systems, or using a relay output a 1kΩ resistor should be connected between the
bell trigger and the positive supply at the control panel.
Test Input
The test input can be used to invoke a remote sounder test, this performs the
same functions as the self test which is carried out once every 24 hours. To invoke
the test the input must be placed at 0V for a minimum of 60s, during this time the
Fault relay will open to signal the test is in progress. On completion of a successful
test the Fault relay will close, if the test fails the relay will stay open.
Optional “Battery First” Connection Method
Hold-Off mode automatically cancels when both the tamper circuit is closed and
power is supplied from the control panel. This allows installation engineers to
power the unit from the internal battery and fit the outer cover, knowing that the
unit cannot self‑activate until after power has been supplied from the control
panel.
N If the tamper circuit is closed and the unit is powered by the battery
only, the right LED will flash quickly to signal that the unit cannot
self‑activate until power has been supplied from the control panel.
! Prolonged “battery first” connection without power from the control
panel may cause permanent damage to the internal battery. Texecom
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