Tandem operation – System Sensor P24 and S24 Strobe and Horn_Strobe User Manual
Page 2
D900-25-00
2
I56-0981-001R
Strobe:
Sound Output Guide
UL Reverberant Room dBA@ volts DC
Anechoic dBA @10 ft./volts DC
20
24
30
20
24
30
Temporal
Low Volume
Electromechanical
75
75
79
94
96
98
3000 Hz Interrupted
75
79
79
94
96
98
High Volume
Electromechanical
82
82
82
100
101
102
3000 Hz Interrupted
82
85
85
100
101
102
Non-
Low Volume
Electromechanical
79
82
85
94
96
98
Temporal
3000 Hz Interrupted
82
82
85
94
96
98
High Volume
Electromechanical
85
88
88
100
101
102
3000 Hz Interrupted
88
88
88
100
101
102
(+)
(–)
(+)
(–)
E
O
L
(+)
(–)
(+)
(–)
HORN/STROBE
HORN/STROBE
STROBE ONLY
Figure 1A. Any combination of models powered by a 2-wire circuit:
System Operation: Non-Synchronized Devices
FROM:
FACP, MODULE
OR PREVIOUS
DEVICE
TO NEXT
DEVICE OR
EOL
(+)
(+)
(+)
(–)
(–)
(–)
TANDEM OPERATION
HORN/STROBE COMBO
FACTORY INSTALLED
JUMPERS
Figure 1B: Horns and strobes powered in tandem:
NOTE: Supply power must be continuous for proper operation.
Current Draws
Horn/Strobe:
DC
FWR
DC
FWR
DC
FWR
169 220 140 191 115 174
AVERAGE CURRENT (mA)
24V Models
20V
24V
30V
DC
FWR
DC
FWR
DC
FWR
460 560 450 570 420 620
PEAK CURRENT (mA)
24V Models
20V
24V
30V
DC
FWR
DC
FWR
DC
FWR
190 230 220 290 290 370
IN RUSH CURRENT (mA)
24V Models
20V
24V
30V
DC
FWR
DC
FWR
DC
FWR
188 241 165 209 144 200
186 238 163 211 145 202
180 232 153 204 132 189
181 232 154 204 132 190
193 246 168 214 152 207
188 242 167 217 150 210
183 234 157 206 136 193
182 232 156 205 137 195
High/Low
Volume
Temp
/Non
Electro-
mech.
Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
AVERAGE CURRENT (mA)
24V Models
20V
24V
30V
Tone
High
Low
High
Low
Horn Selections
Horns are factory set for high volume, temporal code, and electromechan-
ical tone.
Tones:
Two tones may be selected using the jumper plugs located on
the printed circuit board. With the jumper offset, the tone is the
Electromechanical sound. With the jumper in place, the tone is
a 3 kHz sound.
Temp/Non-Temp:
Temporal coding or Non-Temporal coding can be selected using
the jumper plugs located on the printed circuit board. With the
jumper offset, the tone pattern is the Temporal Coded Signal.
With the jumper in place, the Non-Temporal code (continuous)
tone is active.
NOTE:
When powered from FWR supply, the tones will be modulated
(turned on and off) by 120Hz, causing the tones to sound dif-
ferent from DC power.
High/Low Volume:
High or low volume may be selected using the jumper plugs
located on the printed circuit board. With the jumper in place,
the sound output level is the high level. With the jumper offset,
the sound output level is the low level. The low volume setting
must NOT be used when the device is powered from a 12-volt
panel.
NOTE: Always power down devices before setting jumpers.