Installation Instructions for Bell/Strobe Adapter Plate
CAUTION
Electrical supervision requires wire run to be broken at each device.
Do not loop signaling circuit field wires around bell/strobe leads.
3. See Figure 2 for wiring connections. Use wire nuts (not provided) to
connect wires. The strobe must be connected to a signal circuit that outputs
a constant voltage. Polarity must be observed for the unit to function
properly. Figure 2 details wiring for connecting the bell and strobe to the
same circuit or to separate circuits.
For additional wiring connection details, see the applicable installation
instructions for the signaling modules or circuits used in the fire alarm
control panel.
4. Mount the bell/strobe adapter plate to the electrical box using the 3/4" (19
mm) phillips head screws provided.
5. Mount the bell onto the adapter plate and fasten the assembly to the
electrical box with the screws provided with the bell.
6. Replace the gong and fasten with the gong support bolt.
7. Apply power and activate the unit to verify that it is operating properly.
MAINTENANCE
CAUTION
Should the unit fail to operate, do not attempt repair. Contact the
supplier for replacement.
Perform a visual inspection and an operational test twice a year or as directed
by the local authority having jurisdiction.
DESCRIPTION
The bell/strobe adapter plates come equipped with an electronic strobe signal
and has provisions for mounting a fire alarm bell (not supplied). The units are
intended for indoor use only with compatible fire protective signaling systems.
The strobes are self-synchronized to flash at 1 fps across their full operating
voltage range. Studies show that people with photosensitive conditions may
experience a photoconvulsive response from multiple random flashes of light.
This risk is minimized with these strobes. The strobe operates on any existing 2-
wire signal circuit. Separately installed "sync control modules" are not required.
The bell/strobe adapter plate is to be installed in accordance with the latest edi-
tion of NFPA 72, National Fire Alarm Code. It is recommended that these prod-
ucts be installed in accordance with the requirements in the latest recognized
edition of national and local fire alarm and electrical codes.
Synchronization of less than 200 milliseconds will be maintained for no less
than 60 hours supervision followed by 30 minutes in alarm.
See Table 1 and Figures 1, 3 and 4 for specifications.
INSTALLATION
WARNINGS
This device will not operate without electrical power. As fires
frequently cause power interruptions, discuss further safeguards with
your local fire protection specialist.
To reduce the risk of shock, always disconnect all power before
handling the unit.
To reduce the risk of shock, do not tamper with unit when circuit is
energized. Disconnect all power and allow 5 minutes for stored energy
to dissipate before handling.
1. Select any standard electrical box. Install the electrical box using suitable
hardware.
2. Bring signaling circuit field wiring into the electrical box.
P-047550-1720 ISSUE 3 © 1997
Figure 1. Detailed View
P-047550-1720 ISSUE 3 © 1997
Indoor Bell/Strobe Adapter Plate, 403-3A-R
30 cd, Red XLS403-3A-R
2453BSA-30-R
BS-3AR
Indoor Bell/Strobe Adapter Plate, 403-5A-R
15 cd, Red XLS403-5A-R
BS-5AR
Indoor Bell/Strobe Adapter Plate, 403-7A-R
15/75 cd, Red XLS403-7A-R
2453BSA-15/75-R
BS-7AR
Indoor Bell/Strobe Adapter Plate, 403-8A-R
110 cd, Red XLS403-8A-R
2453BSA-110-R
BS-8AR
Operating Voltage 20-24V DC
Operating Current See Figure 3
Flash Rate (per second) 1 fps (synchronized)
3A 5A* 7A 8A
Light Output (cd) UL 1971 30 cd wall 15 cd 15 cd wall 110 cd wall
UL 1638 30 cd not rated 75 cd 120 cd
ULC S526 30 cd 15 cd 75 cd 120 cd
Operating Environment Indoor 93% relative humidity @ 86F (30C), 32F to 120F (0C to
49C) variable ambient temperature
*The 5A model is for wall mount use only.
NOTE: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful intereference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at his own expense.
CAUTION: Changes or modifications to this equipment not expressly approved by the party
responsible for compliance could void the user's authority to operate the equipment.
Same Signal Circuit
The bell and strobe can be connected to the same
signal circuit (as shown) if the circuit is configured for
continuous signal operation.
Caution: Electrical supervision requires wire run to be
broken at each device. Do not loop signal circuit field
wires around the Bell/Strobe unit leads.
Separate Signal Circuits
The bell and strobe can be connected to different
signal circuits (as shown). The strobe is designed to
be used on circuits that output a constant voltage. Do
not connect the strobe to a coded or pulsating voltage.
Caution: Electrical supervision requires wire run to be
broken at each device. Do not loop signal circuit field
wires around the Bell/Strobe unit leads.
Figure 2. Connecting Strobe Unit
Table 1. Specifications
Table 2. Bell/Strobe Adapter Plates
P-047550-1720 ISSUE 3 © 1997
375 373
368
365
360
67 61
60
60
70
12 5
12 2
118
115
12 8
30
90
150
210
270
330
390
20 21 22 23 24
Operating Voltage Full Wave Rectified
Operating Current (mA)
79
70
73
75
78
12 5
114
115
117
119
50
75
100
125
150
20 21 22 23 24
Operating Voltage DC
Operating Current (mA)
Figure 3. V/I Curves
15 cd Model
Peak Inrush Current @ 24 Vdc = 7.6 A for less
than 50 microseconds.
Peak Inrush Current @ 24 Vdc = 6.6 A for less
than 50 microseconds.
NOTE: Use the average current rating to establish the maximum number of strobes, wire gauge and standby power requirements. Consult the
manufacturer to determine the peak current effects on the system.
Iavg
Irms
Ipeak
910
900
890
870
828
220
210
200
19 0
235
370 363
357
330
385
150
250
350
450
550
650
750
850
950
20 21 22 23 24
Operating Voltage Full Wave Rectified
Operating Current (mA)
265
219
235
245
260
340
315
325
330
335
200
225
250
275
300
325
350
20 21 22 23 24
Operating Voltage DC
Operating Current (mA)
Peak Inrush Current @ 24 Vdc = 7.8 A for less
than 50 microseconds.
Peak Inrush Current @ 24 Vdc = 6.8 A for less
than 50 microseconds.
110 cd Model
530
526 524
522 520
98
94 92
90
10 2
18 6 18 1
17 7
17 2
19 0
50
150
250
350
450
550
20 21 22 23 24
Operating Voltage Full Wave Rectified
Operating Current (mA)
12 5
10 5
113
116
12 4
18 5
16 5
17 0
17 5
18 0
100
125
150
175
200
20 21 22 23 24
Operating Voltage DC
Operating Current (mA)
30 cd Model and
15/75 cd Model
Peak Inrush Current @ 24 Vdc = 7.6 A for less
than 50 microseconds.
Peak Inrush Current @ 24 Vdc = 6.8 A for less
than 50 microseconds.
P-047550-1720 ISSUE 3 © 1997
Figure 4. Strobe Light Output Distribution Patterns
0 5 10 15 2 0 2 5
-90
-75
-60
-45
-30
-15
0
15
30
45
60
75
90
Q
(c d )
15 cd
Model
UL Minimum
Requirement
Typical Output
90
O
90
O
-90
O
HORIZONTAL
VERTICAL
-90
O
0 5 10 15 20 25
-90
-75
-60
-45
-30
-15
0
15
30
45
60
75
90
Q
(c d )
0 102030405060
-90
-75
-60
-45
-30
-15
0
15
30
45
60
75
90
Q
(c d )
30 cd
Model
0 10 20 30405060
-90
-75
-60
-45
-30
-15
0
15
30
45
60
75
90
Q
(c d )
15/75 cd
Model
0 10 2030 4050607080
-90
-75
-60
-45
-30
-15
0
15
30
45
60
75
90
Q
(c d )
0 10 2030 4050607080
-90
-75
-60
-45
-30
-15
0
15
30
45
60
75
90
Q
(c d )
0 2 5 5 0 7 5 10 0 12 5 15 0 17 5
-90
-75
-60
-45
-30
-15
0
15
30
45
60
75
90
Q
(c d )
0 25 50 75 100 125 150 175
-90
-75
-60
-45
-30
-15
0
15
30
45
60
75
90
Q
(c d )
110 cd
Model
Horizontal
Vertical
GENERAL SIGNAL BUILDING SYSTEMS CORPORATION
SARASOTA , FL 941-756-3278 Fax. 941-739-4295
CHESHIRE, CT 203-699-3000 Fax. 203-699-3075
OWEN SOUND, CANADA 519-376-2430 Fax. 519-376-7258
INTERNATIONAL: CANADA 905-678-6767 Fax. 905-678-9791
P-047550-1720
FOLD DETAIL REFERENCE ONLY
P-047550-1720 OFFSET SPEC
INSTALLATION INSTRUCTIONS FOR BELL/
STROBE ADAPTER PLATES
(1) 11" X 17" SHEET PRINTED BOTH SIDES. FOLD
THREE TIMES TO DIMENSIONS SHOWN WITH
PART NUMBER ON THE OUTSIDE.
MATERIAL: STANDARD WHITE OFFSET STOCK
CHARACTERS: TO BE BLACK ON WHITE BACK-
GROUND
NOTE: MECHANICALS HAVE ALREADY BEEN
REDUCED TO ACTUAL SIZE.
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