Product Description
20 MS-5UD/MS-10UD Series PN 52626:B 8/01/2008
1.7 Telephone Requirements and Warnings
1.7.1 Telephone Circuitry
Ringer Equivalence Number (REN) = 0.0B
AC Impedance: 10.0 Mega Ohm
Complies with FCC Part 68
Mates with RJ31X Male Connector
Supervision Threshold: loss of phone line voltage 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.
1.7.2 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
One Fire-Lite Place
Northford, CT 06472
(203) 484-7161
Product Model Number: MS-5UD/MS-10UD
FCC Registration Number: 1W6AL00B10UD
Ringer Equivalence: 0.0B
Important! The DACT must not
be used to dial a phone number that is call-forwarded.
Note: This equipment complies with Part 68 of the FCC rules and the requirements
adopted by the ACTA. On the inside of the FACP door 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 "Digital Communicator" on page 33 for an illustration of
the proper installation of this equipment.
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