Cut Sheet

Data Sheet S85001-0559 Issue 8
Not to be used for installation purposes. Page 2 of 4
Application
Genesis strobes are UL 1971-listed for use indoors as ceiling-
mounted public-mode notification appliances for the hearing im-
paired. Prevailing codes require strobes to be used where ambient
noise conditions exceed 105 dBA (87dBA in Canada), where occu-
pants use hearing protection, and in areas of public accommoda-
tion as defined in the Americans with Disabilities Act (see application
notes – USA).
Combination horn-strobe signals must be installed in accordance
with guidelines established for strobe devices.
Strobes
Genesis strobes are UL 1971-listed for use indoors as wall-mounted
public-mode notification appliances for the hearing impaired. Prevail-
ing codes require strobes to be used where ambient noise conditions
exceed specified levels, where occupants use hearing protection,
and in areas of public accommodation. Consult with your Authority
Having Jurisdiction for details.
All Genesis strobes exceed UL synchronization requirements (within
10 milliseconds other over a two-hour period) when used with a
synchronization source. Synchronization is important in order to
avoid epileptic sensitivity.
NOTE: The flash intensity of some visible signals may not be adequate
to alert or waken occupants in the protected area. Research indicates
that the intensity of strobe needed to awaken 90% of sleeping persons is
approximately 100 cd. GE Security recommends that strobes in sleeping
rooms be rated at at least 110 cd.
WARNING: These devices will not operate without electrical power. As fires
frequently cause power interruptions, further safeguards such as backup
power supplies may be required.
Horns
Genesis horn output reaches as high as 99 dB (peak) and features
a unique multiple frequency tone that results in excellent wall
penetration and an unmistakable warning of danger. All models
may be configured for either coded or non-coded signal circuits.
They can also be set for low dB output with a jumper cut that
reduces horn output by about 5 dB.
The suggested sound pressure level for each signaling zone used with
alert or alarm signals is at least 15 dB above the average ambient sound
level, or 5 dB above the maximum sound level having a duration of at
least 60 seconds, whichever is greater, measured 5 feet (1.5 m) above the
floor. The average ambient sound level is, A-weighted sound pressure
measured over a 24-hour period.
Doubling the distance from the signal to the ear will theoretically
result in a 6 dB reduction of the received sound pressure level. The
actual effect depends on the acoustic properties of materials in the
space. A 3 dBA difference represents a barely noticeable change in
volume.
1.0"
(25 mm)
6.8" dia.
(173 mm)
0.60"(15 mm)
Dimensions
Note: Strobes must have continuous voltage.
+
+
-
+
-
Polarity shown in
alarm condition
To next device
or end of line
device
H H
Wiring
Field wiring terminals accommodate #18 to #12 AWG (0.75 mm² to
2.5 mm²) wiring. Horn/strobes are interconnected with a single pair
of wires as shown below.
Installation and Mounting
All models are intended for indoor wall or ceiling applications only.
Horn-strobes mount to any flush North-American 4” square electri-
cal box.
Genesis ceiling horn-strobes simply unlatch and twist to open.
This gains access to mounting screws and the selectable candela
switch. The shallow depth of Genesis devices leaves ample room
behind the signal for extra wiring. Once installed with the cover in
place, no mounting screws are visible.
GE Security recommends that these fire alarm horn-strobes always
be installed in accordance with the latest recognized edition of
national and local fire alarm codes.
Field Configuration
Depending on the model, Genesis horn-strobes may be set for 15
to 95, or 95 to 177 candela output (see ordering information). The
output setting is changed by simply opening the device and sliding
the switch to the desired setting. The horn-strobe does not have
to be removed to change the output setting. The setting remains
visible through a small window on the front of the device after the
cover is closed.
The horn-strobe comes factory set for high dB output. Low dB out-
put may be selected by cutting a jumper on the circuit board. This
reduces the output by about 5 dB.