10 Notification Appliances—SCM Synchronization (Sync) Control Module
Test your alarm system per the applicable codes and standards specific to
the location and use of your facility.
The audible device and/or sync strobe will not work without power. The
audible device/sync strobe gets its power from the fire/security panel
monitoring the alarm system. If power is cut off for any reason, the
audible device/sync strobe will not provide the desired audio or visual
warning.
The audible device may not be heard. The loudness of the audible device
meets or exceeds current Underwriters Laboratories standards. However,
the audible device may not alert a sound sleeper, one who has recently
used drugs, or one who has been drinking alcoholic beverages. The
audible device may not be heard if it is placed on a different floor from the
person in hazard, or if it is placed too far away to be heard over ambient
noise such as traffic, air conditioners, machinery, or music appliances that
may prevent alert persons from hearing the alarm. The audible device
may not be heard by persons who are hearing impaired.
The signal sync strobe may not be seen. The electronic visual warning
signal that flashes at least once every three seconds meets or exceeds
current Underwriters Laboratories Standard 1971, and uses an extremely
reliable xenon flashtube. The visual warning signal is suitable for direct
viewing and must be installed within an area where it can be seen by
building occupants. The sync strobe must not be installed in direct
sunlight or in areas of high light intensity (over 60 foot candles) where the
visual flash might be disregarded or not seen. The sync strobe may not be
seen by the visually impaired.
The signal sync strobe may cause seizures. Individuals who have a
positive photic response to visual stimuli with seizures, such as epileptics,
should avoid prolonged exposure to environments in which sync strobe
signals, including this sync strobe, are activated.
Johnson Controls recommends that the audible and signal sync strobes be
used in combination to minimize risk.
The signal sync strobe cannot operate from coded power supplies. Coded
power supplies produce interrupted power. The sync strobe must have an
uninterrupted source of DC power in order to operate correctly.
Limitations
