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Section 1: Product Description
The 411 is a three, and the 411UD is a four input/channel, dual line, digital communicator which
can be used as a slave communicator with UL listed fire and non-fire control panels. The three or
four inputs are compatible with normally open relay contacts, require End-Of-Line (EOL) resistors,
and are fully programmable. The 411/411UD interfaces with the public switched telephone net-
work and is compatible with most central station receivers. A total of fifteen popular communica-
tions formats are supported, including Ademco Contact ID. The communicator also contains a
unique DACT option that eliminates 'dialer runaway'. It restricts the transmission of any trouble
event to 10 attempts in a 24 hour period. Power supplied must be 12 or 24 volts, filtered and non-
resettable. Accessories include the Fire-Watch 411 Series DACT Programmer (Model PRO-411)
as well as the PK-411 Windows®- based remote site programming software.
1.1 Product Features
Figure 1.1 411 Digital Communicator
•
Three input channels (411) or four input channels (411UD)
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Dual telephone lines
– Dual telephone line voltage detect
– Alternating phone lines for 24 hour test messages
•
Program locations for entering up to 20-digit central station and service terminal telephone
numbers
•
Surface mount technology
•
Compact in size
•
Separate external keypad and display
– provides means of programming digital communicator in program mode
– provides means of testing phone circuits in troubleshoot mode
•
6.841" (17/376 cm) X 4.595" (11.671 cm) X 1.0" (2.54 cm) metal enclosure
•
Communicates vital status of monitored control panel:
– fire alarm
– host control panel trouble
– fire supervisory
– AC (mains) power loss (programmable)
– other
•
Communicates vital status of 411/411UD digital communicator:
– digital communicator troubles
– telephone Line 1 and 2 voltage fault
411 & 411UD Manual — P/N LS10105-000GE-E:A 1/29/2014
Figure 1.2 411UD Digital Communicator
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