PRODUCT SPECIFICATION
822 & 922 Series Non-Sync/Sync Strobe Plates
ACTION MESSAGES
ADA
SYSTEMS
COMMUNICATIONS
Reliable, Cost-effective Strobe
Description
The DMP Model 822 Strobe Plate (12 VDC) and Model 922
Series Strobe Plates (24 VDC) are designed for maximum
performance, reliability, and cost-effectiveness while meeting
or exceeding the latest requirements of NFPA 72 (National
Fire Alarm Code-1999), ANSI 117.1 (American National
Standard for Accessible and Usable Building and Facilities),
and UL Standard 1971 (Signaling devices for the Hearing
Impaired). The 822 and 922 Series Strobes, when properly
specified and installed in accordance with NFPA/ANSI
Standards, can provide the Equivalent Facilitation allowed
under ADA Accessibility Guidelines (ADAAG General Section
2.2) by meeting or exceeding the illumination which results
from ADA’s strobe intensity guidelines of 75 candela at 50
feet. This is an illumination of 0.030 lumens per square foot.
• Approvals: Underwriters Laboratories UL 1971, FCC
Part 15, California State Fire Marshal (CSFM)
• Designed to meet or exceed NFPA/ANSI Standards
and ADA Accessibility Guidelines. Meets OSHA 29,
Part 1910.165.
The 822 and 922 are a non-sync and sync strobe combined
in one model. Synchronized strobe flash is achieved when
used with the 831 or 832 Sync Module(s). Synchronized
strobes can eliminate possible restrictions on the number of
strobes in the field of view. DMP’s synchronized strobe offer
an easy way to comply with ADA recommendations
concerning photosensitive epilepsy.
The 822 or 922 may be used in retrofit applications when
upgrading Fire Alarm Systems to the latest code. The 822 or
922 Strobe Plates are the most cost effective way to retrofit
required strobe appliances to bells, horns, chimes, multitones,
and speakers.
• Synchronization is achieved when used with the 831 or
832 Sync Module(s).
• Incorporates the 821 or 921 Non-Sync/Sync Strobe(s)
• The 822 meets ADA Guidelines for minimum one flash
per second from 10.5-15.6 VDC for 12 VDC and 20.031.0 for 24 VDC.
Low current draw is an integral part of the product design.
This allows the addition of these appliances with minimal
change to the existing control panel. Zero inrush relieves the
concern of current drain on power supplies at the time of
activation.
• Low current, zero inrush, great for retrofits
• Low current draw with temperature compensation to
reduce power consumption and wiring costs.
2500 N. Partnership Boulevard Springfield, MO 65803
822/922 Strobe Plate
822/922 Strobe Plate with 806/906 Motor Bell
All strobes use a Xenon flashtube enclosed in a rugged
Lexan® lens to provide maximum reliability for effective
visual signaling.
The 822 and 922 Strobe Plates mount to a standard 4"
square backbox or can be surface mounted with the DMP
Model 844 surface backbox.
• The 15/75 candela wall mounted strobe is listed at 15
candela under UL 1971 and meets 75 candela
intensity on axis for ADA guidelines with low current
draw.
• Convenient flush mounting to standard 4" square
backbox or surface mount to DMP 844 Backbox
• Polarized 12 or 24 VDC with wide listed voltage ranges
using filtered DC or unfiltered VRMS input voltage.
• Easy installation with In/Out screw terminals using #12
to #18 AWG wires.
Ordering Information
ominal Strobe Average
Description N
Voltage Candela Current Color
822-51
Strobe Plate
12
15/75
.161
White
822-81
Strobe Plate
12
15/75
.161
Red
922-15W-81 Strobe Plate
24
15
.050
Red
922-1575W-81 Strobe Plate
24
15/75
.065
Red
922-30W-81 Strobe Plate
24
30
.081
Red
922-75W-81 Strobe Plate
24
75
.133
Red
922-110W-81 Strobe Plate
24
110
.161
Red
12
.014
Red
S
i
n
g
l
e
S
y
n
c
831-81
Module
24
.025
Red
12
.020
Red
D
u
a
l
S
y
n
c
832-81
Module
24
.038
Red
Model
Mounting Options
DMP Model 844, SBL-2 backbox - Option Z
4" square, flush - Option D
4" square, deep, flush - Option E
Refer to LT-0459 Fire Notification Mounting Accessories
www.dmpnet.com
Digital Monitoring Products
LT-0441 (1/01)
Audible Appliances to use with the 822 & 922 Strobe Plates
Model
802
803
806
904
904WP
906-6
906-10
Description
Multitone Electronic Appliance
Horn Appliance
Motor Bell
Horn
Horn
Motor Bell
Motor Bell
Sync Module Notes:
1. The 822 and 922 require the use of an 831 or
832 Sync Module to attain synchronization of the
strobe. For more detail, refer to sync module data
sheet, or Installation Instructions.
2. The 831 Sync Module is rated for 3 Amps at 12
or 24 VDC. The 832 Sync Module is rated for 3
Amps per circuit. The maximum number of
interconnected 832 modules is twenty. Refer to
sync module Data Sheet or Installation
Instructions.
Wiring Diagrams
AUDIBLE
+
Preceding
appliance
or FACP
AUDIBLE
NonSync
X
X
X
X
X
X
X
Nominal
Voltage
12
12
24
24
24
24
24
Sync w/ 831 Strobe
or 832
Candela
X
15/75
X
15/75
X
15
X
15/75
X
30
X
75
X
110
-
Preceding
appliance
or FACP
-
To next
appliance
or EOLR
VISIBLE
+
-
vv vv
+
v v vv
822-81
822-51
922-15W-81
922-1575W-81
922-30W-81
922-75W-81
922-110W-81
Wall
Mount
X
X
X
X
X
X
X
+
Strobe/plate assembly audible and visible appliances
operate in unison
Quick Reference Guide
Model
-
VISIBLE
vv
• Strobes are designed to flash at 1 flash per second
minimum from 10-15.6 VDC for 12 VDC models and 20-31.0
VDC for 24 VDC models. Note that NFPA-72 (1999)
specifies a flash rate of 1 to 2 flashes per second and ADA
Guidelines specify a flash rate of 1 to 3 flashes per second.
• All candela ratings represent minimum effective strobe
intensity based on UL 1971.
• The 822 and 922 Strobes product are listed under UL 1971
for indoor use with a temperature range of 320 F to 1200 F
(00 C to 490 C) and maximum humidity of 85%.
vv
General Notes:
Next
appliance
or EOLR
Strobe/plate assembly audible and visible appliances
operate independently
Specifications
Average Current Model 822
Voltage
15/75
10.5 VDC
0.189
12.0 VDC
0.161
15.6 VDC
0.130
922 Series Average Current (24 VDC)
Voltage 922-15W 922-1575W 922-30W 922-75W 922-110W
20 VDC
0.060
0.076
0.095
0.157
0.199
24 VDC
0.050
0.065
0.081
0.133
0.161
31 VDC
0.043
0.052
0.066
0.108
0.131
822 & 922 Series Product Specification
Digital Monitoring Products
www.dmpnet.com
2500 N. Partnership Boulevard Springfield, MO 65803
DMP products must be used within their published
specifications and must be PROPERLY specified, applied,
installed, operated, maintained and operationally tested in
accordance with their installation instructions at the time of
installation and at least twice a year or more often and in
accordance with local, state and federal codes, regulations
and laws. Specification, application, installation, operation,
maintenance and testing must be performed by qualified
personnel for proper operation in accordance with all of the
latest National Fire Protection Association (NFPA),
Underwriters’ Laboratories (UL), National Electrical Code
(NEC), Occupational Safety and Health Administration
(OSHA), local, state, county, province, district, federal and
other applicable building and fire standards, guidelines,
regulations, laws and codes including, but not limited to, all
appendices and amendments and the requirements of the
local authority having jurisdiction (AHJ).
Warning: Contact DMP for the current Installation
Instructions and General Information sheet on these
products. These documents do undergo periodic
changes. It is important that you have current
information on these products. These materials
contain important information that should be read prior
to specifying or installing these products, including:
• Total current required by all appliances connected to
system secondary power sources.
• Fuse ratings on notification appliance circuits to handle
peak currents from all appliances on those NAC
circuits.
• Composite flash rate from multiple strobes within a
person's field of view.
• The voltage applied to these products must be within
their rated input voltage range.
• Installation in office areas and other specification and
installation issues.
• Use strobes only on NAC circuits with continuous
applied operating voltage. Do not use strobe on coded
or interrupted NAC circuits in which the applied voltage
is cycled ON and OFF as the strobe may not flash.
• Failure to comply with the installation instructions or
general information sheets could result in improper
installation, application, and/or operation of these
products in an emergency situation, which could result
in property damage and serious injury or death to you
and/or others.
• Conductor size (AWG), length and capacity should be
taken into consideration prior to design and installation
of these products, particularly in retrofit installations.
Architects and Engineers Specifications
The visual notification appliances shall be DMP 822 Strobe
Plate for 12 VDC, 922 Strobe Plate for 24 VDC, or approved
equal. The 822 and 922 shall be remote strobes mounted on
a plate designed to additionally mount an audible appliance
(e.g., bell, horn, speaker, etc.). The 822 and 922 shall meet
and be listed under UL Standard 1971 (Emergency Devices
for the Hearing-Impaired for indoor fire protection service).
The strobe shall be listed for indoor use only. The strobe
shall be certified to meet FCC Part 15 Class B. The strobe
appliance shall produce a flash rate of one (1) flash per
second minimum over the Listed Voltage range of 10.5 to
15.6 VDC for 12 VDC and 20 to 31.0 VDC for 24 VDC. All
inputs shall be polarized for compatibility with standard
reverse polarity supervision of circuit wiring by a Fire Alarm
Control Panel (FACP).
All visual appliances shall incorporate a Xenon flashtube
enclosed in a rugged Lexan® lens. The strobe intensity shall
be rated per UL 1971 for 15/75 candela for public mode
installations. The 15/75 candela strobe shall be specified
when 15 candela UL 1971 listing with 75 candela intensity
on-axis is required (e.g., ADA compliance). The Models 822
and 922 shall incorporate circuitry for synchronized strobe
flash and shall be designed for compatibility with the DMP
831 and 832 Sync Modules. The strobe shall not drift out of
synchronization at any time during operation. If the sync
module fails to operate (i.e., contacts remain closed), the
strobe shall revert to a non-synchronized flash rate.
The visual appliance shall be designed for indoor surface or
flush mounting. The 822 and 922 strobe plate shall mount
to either a standard 4 inch square backbox for flush mounting,
or the DMP Model 844 Backbox for surface mounting.
822 & 922 Series Product Specification
2500 N. Partnership Boulevard Springfield, MO 65803
www.dmpnet.com
Digital Monitoring Products
Digital Monitoring Products
2500 N. Partnership Boulevard Springfield, MO 65803 800-641-4282