While a fire alarm system may lower insurance
rates, it is not a substitute for fire insurance!
An automatic fire alarm system–typically made up of smoke
detectors, heat detectors, manual pull stations, audible warning devices, and a fire alarm control with remote notification
capability–can provide early warning of a developing fire.
Such a system, however, does not assure protection against
property damage or loss of life resulting from a fire.
The Manufacturer recommends that smoke and/or heat detectors be located throughout a protected premise following the
recommendations of the current edition of the National Fire
Protection Association Standard 72 (NFPA 72),
manufacturer's recommendations, State and local codes, and
the recommendations contained in the Guide for Proper Use
of System Smoke Detectors, which is made available at no
charge to all installing dealers. A study by the Federal Emergency Management Agency (an agency of the United States
government) indicated that smoke detectors may not go off in
as many as 35% of all fires. While fire alarm systems are designed to provide early warning against fire, they do not guarantee warning or protection against fire. A fire alarm system
may not provide timely or adequate warning, or simply may not
function, for a variety of reasons:
Smoke detectors may not sense fire where smoke cannot
reach the detectors such as in chimneys, in or behind walls, on
roofs, or on the other side of closed doors. Smoke detectors
also may not sense a fire on another level or floor of a building. A second-floor detector, for example, may not sense a
first-floor or basement fire.
Particles of combustion or "smoke" from a developing fire
may not reach the sensing chambers of smoke detectors because:
• Barriers such as closed or partially closed doors, walls, or
chimneys may inhibit particle or smoke flow.
• Smoke particles may become "cold," stratify, and not reach
the ceiling or upper walls where detectors are located.
• Smoke particles may be blown away from detectors by air
outlets.
• Smoke particles may be drawn into air returns before reaching
the detector.
The amount of "smoke" present may be insufficient to alarm
smoke detectors. Smoke detectors are designed to alarm at
various levels of smoke density. If such density levels are not
created by a developing fire at the location of detectors, the
detectors will not go into alarm.
Smoke detectors, even when working properly, have sensing
limitations. Detectors that have photoelectronic sensing
chambers tend to detect smoldering fires better than flaming
fires, which have little visible smoke. Detectors that have ionizing-type sensing chambers tend to detect fast-flaming fires
better than smoldering fires. Because fires develop in different ways and are often unpredictable in their growth, neither
type of detector is necessarily best and a given type of detector may not provide adequate warning of a fire.
Smoke detectors cannot be expected to provide adequate
warning of fires caused by arson, children playing with
matches (especially in bedrooms), smoking in bed, and violent
explosions (caused by escaping gas, improper storage of
flammable materials, etc.).
Heat detectors do not sense particles of combustion and alarm
only when heat on their sensors increases at a predetermined
rate or reaches a predetermined level. Rate-of-rise heat detectors may be subject to reduced sensitivity over time. For this
reason, the rate-of-rise feature of each detector should be tested
at least once per year by a qualified fire protection specialist.
Heat detectors are designed to protect property, not life.
IMPORTANT! Smoke detectors must be installed in the
same room as the control panel and in rooms used by the
system for the connection of alarm transmission wiring, communications, signaling, and/or power. If detectors are not so
located, a developing fire may damage the alarm system,
crippling its ability to report a fire.
Audible warning devices such as bells may not alert people
if these devices are located on the other side of closed or
partly open doors or are located on another floor of a building.
Any warning device may fail to alert people with a disability or
those who have recently consumed drugs, alcohol or medication. Please note that:
• Strobes can, under certain circumstances, cause seizures
in people with conditions such as epilepsy.
• Studies have shown that certain people, even when they
hear a fire alarm signal, do not respond or comprehend the
meaning of the signal. It is the property owner's responsibility to conduct fire drills and other training exercise to
make people aware of fire alarm signals and instruct them
on the proper reaction to alarm signals.
• In rare instances, the sounding of a warning device can
cause temporary or permanent hearing loss.
A fire alarm system will not operate without any electrical
power. If AC power fails, the system will operate from standby
batteries only for a specified time and only if the batteries
have been properly maintained and replaced regularly.
Equipment used in the system may not be technically compatible with the control. It is essential to use only equipment
listed for service with your control panel.
Telephone lines needed to transmit alarm signals from a
premise to a central monitoring station may be out of service
or temporarily disabled. For added protection against telephone line failure, backup radio transmission systems are recommended.
The most common cause of fire alarm malfunction is inadequate maintenance. To keep the entire fire alarm system in
excellent working order, ongoing maintenance is required per
the manufacturer's recommendations, and UL and NFPA standards. At a minimum, the requirements of NFPA 72 shall be
followed. Environments with large amounts of dust, dirt or
high air velocity require more frequent maintenance. A maintenance agreement should be arranged through the local
manufacturer's representative. Maintenance should be
scheduled monthly or as required by National and/or local
fire codes and should be performed by authorized professional fire alarm installers only. Adequate written records of
all inspections should be kept.
PrecauLarge.PMD 01/10/2005
Installation Precautions
Adherence to the following will aid in problem-free
installation with long-term reliability:
WARNING - Several different sources of power can be con-
nected to the fire alarm control panel. Disconnect all sources
of power before servicing. Control unit and associated equipment may be damaged by removing and/or inserting cards,
modules, or interconnecting cables while the unit is energized.
Do not attempt to install, service, or operate this unit until this
manual is read and understood.
CAUTION - System Reacceptance Test after Software
Changes. To ensure proper system operation, this product
must be tested in accordance with NFPA 72 after any programming operation or change in site-specific software. Reacceptance testing is required after any change, addition or
deletion of system components, or after any modification,
repair or adjustment to system hardware or wiring.
All components, circuits, system operations, or software functions known to be affected by a change must be 100% tested.
In addition, to ensure that other operations are not inadvertently affected, at least 10% of initiating devices that are not
directly affected by the change, up to a maximum of 50 devices, must also be tested and proper system operation verified.
This system meets NFPA requirements for indoor dry operation at 0-49° C/32-120° F
RH (non-condensing) at 32 ±2° C/90 ±3° F. However, the
useful life of the system's standby batteries and the electronic components may be adversely affected by extreme
temperature ranges and humidity. Therefore, it is recommended that this system and all peripherals be installed in
an environment with a nominal room temperature of 15-27°
C/60-80° F.
Verify that wire sizes are adequate for all initiating and
indicating device loops. Most devices cannot tolerate more
than a 10% I.R. drop from the specified device voltage.
and at a relative humidity of 93 ±2%
Like all solid state electronic devices, this system may
operate erratically or can be damaged when subjected to
lightning-induced transients. Although no system is completely immune from lightning transients and interferences,
proper grounding will reduce susceptibility. Overhead or out-
side aerial wiring is not recommended, due to an increased
susceptibility to nearby lightning strikes. Consult with the
Technical Services Department if any problems are anticipated or encountered.
Disconnect AC power and batteries prior to removing or inserting circuit boards. Failure to do so can damage circuits.
Remove all electronic assemblies prior to any drilling, filing,
reaming, or punching of the enclosure. When possible, make
all cable entries from the sides or rear. Before making modifications, verify that they will not interfere with battery, transformer, and printed circuit board location.
Do not tighten screw terminals more than 9 in-lbs.
Over-tightening may damage threads, resulting in reduced
terminal contact pressure and difficulty with screw terminal
removal.
Though designed to last many years, system components
can fail at any time. This system contains static-sensitive
components. Always ground yourself with a proper wrist strap
before handling any circuits so that static charges are removed from the body. Use static-suppressive packaging
to protect electronic assemblies removed from the unit.
Follow the instructions in the installation, operating, and
programming manuals. These instructions must be followed
to avoid damage to the control panel and associated
equipment. FACP operation and reliability depend upon
proper installation by authorized personnel.
FCC Warning
WARNING: This equipment generates, uses, and can ra-
diate radio frequency energy and if not installed and used
in accordance with the instruction manual, may cause interference to radio communications. It has been tested
and found to comply with the limits for class A computing
device pursuant to Subpart B of Part 15 of FCC Rules,
which is designed to provide reasonable protection against
such interference when operated in a commercial environment. Operation of this equipment in a residential area is
likely to cause interference, in which case the user will be
required to correct the interference at his own expense.
PrecauLarge.PMD 01/10/2005
Canadian Requirements
This digital apparatus does not exceed the Class A
limits for radiation noise emissions from digital
apparatus set out in the Radio Interference Regulations
of the Canadian Department of Communications.
Le present appareil numerique n'emet pas de bruits
radioelectriques depassant les limites applicables aux
appareils numeriques de la classe A prescrites dans le
Reglement sur le brouillage radioelectrique edicte par le
ministere des Communications du Canada.
1.4: Digital Communicator.................................................................................................................................9
1.5: Telephone Requirements and Warnings ......................................................................................................10
2.1: Installation in MS-9600 FACP....................................................................................................................13
3.3: Downloading Initiated at a Service Terminal..............................................................................................39
3.4: Uploading Initiated at a Service Terminal...................................................................................................39
3.5: Simultaneous Data Transfers.......................................................................................................................40
SECTION 4: Central Station Communications ..................................................................................................41
APPENDIX C: Central Station Points ................................................................................................................52
DACT-UD P/N: 51889:B1 1/25/05 5
Notes
6DACT-UD PN 51899:B1 1/25/05
It is imperative that the installer understand the requirements of the Authority Having Jurisdiction
(AHJ) and be familiar with the standards set forth by the following regulatory agencies:
•Underwriters Laboratories Standards
•NFPA 72 National Fire Alarm Code
Before proceeding, the installer should be familiar with the following documents.
NFPA Standards
NFPA 72 National Fire Alarm Code
• Central Station Fire Alarm Systems (Automatic, Manual and Waterflow) Protected
Premises Unit
• Local (Automatic, Manual, Waterflow and Sprinkler Supervisory) Fire Alarm
Systems
• Proprietary Fire Alarm Systems (Protected Premises Unit)
NFPA 70 National Electrical Code
Underwriters Laboratories Documents:
UL 38 Manually Actuated Signaling Boxes
UL 217 Smoke Detectors, Single and Multiple Station
UL 228 Door Closers–Holders for Fire Protective Signaling Systems
UL 268 Smoke Detectors for Fire Protective Signaling Systems
UL 268A Smoke Detectors for Duct Applications
UL 346 Waterflow Indicators for Fire Protective Signaling Systems
UL 464 Audible Signaling Appliances
UL 521 Heat Detectors for Fire Protective Signaling Systems
UL 864 Standard for Control Units for Fire Protective Signaling Systems
UL 1481 Power Supplies for Fire Protective Signaling Systems
UL 1610 Central Station Burglar Alarm Units
UL 1638 Visual Signaling Appliances
UL 1971 Signaling Devices for Hearing Impaired
Other:
EIA-232E Serial Interface Standard
EIA-485 Serial Interface Standard
NEC Article 250 Grounding
NEC Article 300 Wiring Methods
NEC Article 760 Fire Protective Signaling Systems
Applicable Local and State Building Codes
Requirements of the Local Authority Having Jurisdiction (LAHJ)
The DACT-UD Digital Alarm Communicator/Transmitter transmits system status to
UL listed Central Station Receivers via the public switched telephone network. The
communicator mounts to the FACP main circuit board inside the panel cabinet and is
capable of reporting 636 points or 99 zones.
1.1 Product Features
•Dual telephone lines
•Dual telephone line voltage detect
•Mounts inside the control panel
•Extensive transient protection
•Individual LEDs for
Kissoff - green LED
Primary Phone Line Active - red LED
Secondary Phone Line Active - red LED
•Communicates vital system status including:
Independent zone/point alarm
Independent zone/point trouble
Independent zone/point supervisory
AC power loss
Low battery
Earth fault
System off normal
12 or 24 hour test signal
Abnormal test signal per UL requirements
Annunciation at control panel of DACT troubles including loss of phone lines,
communication failure with either Central Station, total communication failure
1.2 Compatible Panel
The DACT-UD has been designed to be compatible with the following control panel:
Two modular phone jacks allow easy connection to telephone lines. Modular jacks are
labeled PH1 and PH2 for the Primary and Secondary phone lines. Telephone line
Primary Active and Secondary Active red LEDs are provided as well as a green Kissoff
LED> The digital communicator provides the following functions:
•Line Seizure - takes control of phone lines disconnecting any premises phones
•Off/On Hook - performs on and off-hook status to the phone lines
•Listen for dial tone - 440 hertz tone typical in most networks
•Dialing Central Station(s) number - default is Touch-Tone®, programmable to
rotary
•For tone burst or touchtone type formats: determine proper ‘Acknowledge’ and
‘Kissoff’ tone(s) - the frequency and time duration of the tone(s) varies with the
transmission format. The control panel will adjust accordingly
•Communicate in the following formats:
12 Tone Burst Types: 20 pps
(3+1, 4+1, 4+2, 3+1 Exp., 4+1 Exp., 4+2 Exp.)
3 Touchtone Types:
4+1 Ademco Express
4+2 Ademco Express
Ademco Contact ID
DACT-UD PN 51899:B1 1/25/059
Product DescriptionTelephone Requirements and Warnings
1.5 Telephone Requirements and Warnings
1.5.1 Telephone Circuitry - PH1 & PH2
Ringer Equivalence Number (REN) = 0.0B
AC Impedance: 10.0 Mega Ohm
Complies with FCC Part 68
Mates with RJ31X Male Connector
Supervision Threshold: less than 4.0 volts for 2 minutes
The REN is used to determine the quantity of devices which may be connected to
the telephone line. Excessive RENs on the telephone line may result in the devices
not ringing in response to an incoming call. In most, but not all areas, the sum of
the RENs should not exceed five (5.0). To be certain of the number of devices that
may be connected to the line, as determined by the total RENs, contact the
telephone company to determine the maximum REN for the calling area.
1.5.2 Digital Communicator
Before connecting the control panel to the public switched telephone network, the
installation of two RJ31X jacks is necessary. If trouble is experienced with this equipment, for repair or warranty information, please contact:
Manufacturer:Fire•Lite Alarms, Inc.
One Fire-Lite Place
Northford, CT 06472
(203) 484-7161
Product Model Number: DACT-UD
FCC Registration Number: US:1W6AL00BDACTUD
Ringer Equivalence: 0.0B
Note: This equipment complies with Part 68 of the FCC rules and the
requirements adopted by the ACTA. On the DACT-UD module IC is a
label that contains, among other information, a product identifier in the
format US:AAAEQ##TXXXX. If requested, this number must be
provided to the telephone company.
Alarm dialing equipment must be able to seize the telephone line and place a call in an
emergency situation. It must be able to do this even if other equipment (telephone,
answering system, computer modem, etc.) already has the telephone line in use. To do
so, alarm dialing equipment must be connected to a properly installed RJ31X jack that
is electrically in series with and ahead of all other equipment attached to the same
telephone line. If there are any questions concerning these instructions, consult the
telephone company or a qualified installer about installing the RJ31X jack and alarm
dialing equipment. Refer to Figure 2.6 on page 16 for an illustration of the proper
installation of this equipment.
10DACT-UD PN 51899:B1 1/25/05
Telephone Requirements and WarningsProduct Description
1.5.3 Telephone Company Rights and Warnings
The telephone company, under certain circumstances, may temporarily discontinue
services and/or make changes in its facilities, services, equipment or procedures which
may affect the operation of this control panel. However, the telephone company is
required to give advance notice of such changes or interruptions.
If the control panel causes harm to the telephone network, the telephone company
reserves the right to temporarili discontinue service. Advance notification will be
provided except in cases when advance notice is not practical. In such cases, notification will be provided as soon as possible. The opportunity will be given to correct any
problems and to file a complaint with the FCC if you believe it is necessary.
DO NOT CONNECT THIS PRODUCT TO COIN TELEPHONE, GROUND START, OR
PARTY LINE SERVICES.
When the control panel activates, premise phones will be disconnected.
Two separate phone lines are required. Do not connect both telephone interfaces to the
same telephone line.
The control panel must be connected to the public switched telephone network
upstream (as first device) of any private telephone system at the protected premises.
A plug and jack used to connect this equipment to the premises wiring and telephone
network must comply with the applicable FCC Part 68 rules and requirements adopted
by ACTA. This equipment is designed to be connected to the telephone network or premises wiring using a compliant RJ31X male modular plug and compatible modular
jack that is also compliant.
DACT-UD PN 51899:B1 1/25/0511
Notes
This Page Left Intentionally Blank
12DACT-UD PN 51899:B1 1/25/05
Installation in MS-9600 FACPDACT-UD Installation
A
SECTION 2DACT-UD Installation
2.1 Installation in MS-9600 FACP
WARNING! Disconnect all sources of power (AC and DC) before installing or
removing any modules or wiring.
2.1.1 MS-9600 Keypad/Display Removal
DACT-UD (Digital Alarm Communicator/Transmitter) Module installation requires the
removal of the MS-9600 Keypad/Display unit from the main circuit board. To remove
the Keypad/Display, insert a Phillips screwdriver into each of the three holes located in
the flexible covering of the Keypad/Display and loosen the three mounting screws.
Note that it is not necessary to disconnect the cables between the Keypad/Display and
the main circuit board. Carefully lift the Keypad/Display and rest the unit at the bottom
of the main circuit board.
Mounting Screw Access Hole
TB3
JP3
REMOVE
TO DISABLE
LOCAL
CHARGER
JP10
JP2
2
1
DISABLE
GND
FLT
4
5
GHIJKL
J17
J16
78 9
PRS
0
*
QZ
RECALL
HOT
CB1
4XTM OPT BD
ABCDEF
CUT TOMONITOR 4XTM
TUVWXY
LCD DISPLAY
NEUT E ARTH
TB4 TB5
JP6
AC POWER
FIRE ALARM
SUPERVISORY
st
3
1
JP8
EVENT
JP7
CLR
6
MNO
JP6
ESC
MODE
#
TB1
-/.
+BATTERY-
TB2
ENTER
J6
KEYPAD I/F
TROUBLE
J2
OPT DACT
J8
CK/STEP
ALARM
SILENCE
JP5
MAINTENANCE
ALARM
SILENCED
DISABLED
BATTERY
GROUND
DRILL
HOLD 2 SEC
RESET
Mounting Screw Access Holes
Figure 2.1 Keypad/Display Removal
TB6TB7
JP4
123
J7
TB8
OPT SLC
J3
DACT-UD PN 51899:B1 1/25/0513
DACT-UD InstallationInstallation in MS-9600 FACP
2.1.2 DACT-UD Installation
WARNING! Disconnect all sources of power (AC and DC) before installing or
removing any modules or wiring.
The DACT-UD module plugs into connector J2 on the MS-9600 main circuit board.
Primary Active LED
Kissoff LED
PH1
Primary
Phone Line
PH2
Secondary
Phone Line
Secondary Active LED
9600DACT.CDR
J1 Connector (located on back
of module) plugs into J2 on
MS-9600 main circuit board
Figure 2.2 DACT-UD Module
The following steps must be followed when installing the DACT module:
1. Remove all power (AC and DC) from the FACP before proceeding with the
installation
2. Remove the Keypad/Display from the main circuit board as described in the
beginning of this section
14DACT-UD PN 51899:B1 1/25/05
Installation in MS-9600 FACPDACT-UD Installation
3. Insert the supplied plastic snap-in standoff into mounting hole located at the
bottom center of the DACT-UD module (insert into back of board)
4. Carefully plug connector J1 on the back of the DACT-UD module into connector
J2 on the MS-9600 main circuit board, being careful not to bend any pins and at
the same time, insert plastic snap-in standoff into mounting hole in main board
5. Align the mounting holes in the DACT module with the premounted standoffs on
the FACP main circuit board
Standoff
Standoff
Standoff
J2
Standoff (snap-in)
J1
J1 Connector located on
back of DACT module
Figure 2.3 DACT J1 Connector to FACP J2 Connector
6. Secure the module to the standoffs on the main circuit board with the three
screws supplied with the DACT-UD. It is important that the supplied screws be
used to secure the module to the metal standoff in order to help protect against
electrical transients.
Mounting Screw
Mounting Screws
96dact2.CDR
Snap-in Standoff
96dact3.CDR
Figure 2.4 DACT Installation on Standoffs
7. Reinstall the Keypad/Display on the main circuit board by positioning the unit
over the appropriate standoffs and securing with the screws which were loosened
in step 2
8. Make certain to program the control panel for DACT operation
DACT-UD PN 51899:B1 1/25/0515
DACT-UD InstallationInstallation in MS-9600 FACP
9. Refer to "Digital Communicator" on page 10, before proceeding with this step.
Connect the premises primary and secondary phone lines to the DACT as
illustrated in Figure 2.5 and test the system for correct operation
Primary Lines
Incoming Telco Phone Lines
Tip
Ring
Primary Phone Line PH-1
Green Wire
Red Wire
1 2 3 4 5 6 7 8
RJ3 1-X
Jack
PH1
Ring
Red Wire
Ring
Tip
To premise phones
Tip
Note: Shorting bars inside RJ31X Jack
removed during male plug insertion
7 foot cable
(MCBL-7)
order separately
Male Plug
Connectors
Female
Connectors
J3
J2
CAUTION: It is critical that the DACT-UD
be located as the first device on the incoming
telephone circuit to properly function
PH2
Green Wire
1 2 3 4 5 6 7 8
RJ31 -X
Jack
Secondary Lines
Incoming Telco Phone Lines
Ring
To premise phones
Tip
Secondary Phone Line PH-1
DACT-UD
Figure 2.5 Wiring Phone Jacks
It is critical that the DACT be located as the first device on the incoming telephone circuit to properly function.
Customer Premises Equipment and Wiring
M
S
2
9
0
0
U
Network
Service
Provider’s
Facilities
RJ31X
Jack
D
Computer
Unused
RJ-11 Jack
MS-9600 with DACT-UD
Telephone
Line
Telephone
Network
Demarcation
Fax Machine
Unused
RJ-11 Jack
Point
Telephone
Answering
System
Telephone
Figure 2.6 DACT Installation
16DACT-UD PN 51899:B1 1/25/05
Programming the MS-9600 Fire Alarm Control PanelProgramming for DACT-UD
SECTION 3Programming for DACT-UD
3.1 Programming the MS-9600 Fire Alarm Control Panel
Refer to the MS-9600 Manual programming section for general programming
information. To program the MS-9600 FACP for use with the DACT-UD:
1. Press the Enter or Mode key to display the Read Status/Programming screen
2. Press 2 to access Programming
3. Enter the Master level password
4. Press the down arrow key twice to view the screen with the Option Modules
choice
5. Press 3 for Option Modules to access the Option Modules screen as shown to the
left
6. Program the FACP for use with the DACT-UD using the following procedure
3.1.1 On-Board DACT
The DACT-UD (Digital Alarm Communicator/Transmitter) is an optional module
which installs directly on the FACP main circuit board for communication to a
central station. Pressing 2 while viewing the Option Module Screen will cause the
following screens to be displayed:
ON BOARD DACT
1=ENABLED YES
2=PRIMARY PHONE
3=SECONDARY PHONE
On Board DACT Screen #1
ON BOARD DACT
1=SERVICE TERMINAL
2=CENTRAL STATION
3=MANUAL DIAL MODE
On Board DACT Screen #2
3.1.1.1 DACT-UD Enable
To enable the on-board DACT module, press 1 while viewing On Board DACT
Screen #1 until the display reads Enabled Yes. The display will toggle between Enabled Yes and Enabled No with each press of the key.
DACT-UD PN 51899:B1 1/25/0517
Programming for DACT-UDProgramming the MS-9600 Fire Alarm Control Panel
3.1.1.2 Primary Phone
Press 2 while viewing On Board DACT Screen #1 to program the type of primary
phone line being connected to the DACT. The following screen will be displayed:
ON BOARD DACT
PRIMARY PHONE LINE
1=TYPE TOUCHTONE
Primary Phone Line Screen
To select the type, press 1 while viewing the Primary Phone Line screen. The
following screen will be displayed:
PHONE LINE
1=TOUCHTONE
2=ROTARY 67/33
3=ROTARY 62/38
ON BOARD DACT
1=ENABLED
2=PRIMARY PHONE
3=SECONDARY PHONE
On Board DACT Screen #1
Primary Phone Type Screen
Press 1 to select Touchtone dialing, 2 to select Rotary dialing with a make/break
ratio of 67/33 or 3 to select Rotary dialing with a make/break ratio of 62/38.
3.1.1.3 Secondary Phone
Press 3 while viewing On Board DACT Screen #1 to program the type of secondary
phone line being connected to the DACT. The following screen will be displayed:
ON BOARD DACT
SECONDARY PHONE LINE
1=TYPE TOUCHTONE
Secondary Phone Line Screen
To select the type, press 1 while viewing the Secondary Phone Line screen. The
following screen will be displayed:
PHONE LINE
1=TOUCHTONE
2=ROTARY 67/33
3=ROTARY 62/38
Secondary Phone Type Screen
Press 1 to select Touchtone dialing, 2 to select Rotary dialing with a make/break
ratio of 67/33 or 3 to select Rotary dialing with a make/break ratio of 62/38.
18DACT-UD PN 51899:B1 1/25/05
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