Telefire
ADR-3000 – System Introduction
Revision 1.10 4 November 2004
4.2.12 ADR-833 Extinguishing Control Unit
The ADR-833 Analog Addressable Extinguishing Control Unit supervises, controls, and
activates automatic extinguishing systems.
The ADR-833 is a multi-input/output control unit connected to and supervised by the
ADR-3000 analog addressable control panel.
The fire detectors assigned to the automatic extinguishing system are monitored by the
analog addressable control panel. The
extinguishing control and command are
performed by the ADR-833 when
instructed by the ADR-3000 to do so.
FIRE
LCD Display
Alarm Horn
Evacuation
Horn/Lamp
Pressure
Switch
Extinguisher
Command
Abort Switch
Manual
Release
Switch
Alarm
Relay
Trouble
Relay
Evacuation
FIRE
24Vdc in
SLC Analog line
The ADR-833 contains 3 supervised
outputs, 2 relays and 3 supervised inputs.
The outputs activate: (a) the automatic
extinguishing cylinders, (b) the fire alarm
horn and (c) the evacuation annunciators.
The relays are: one for trouble and the
other for alarm. The inputs are: (a)
manual extinguishing release –
electrically, (b) extinguishing inhibit and
(c) extinguishing cylinder pressure switch.
The ADR-833 requires a 24 V
DC
input t
is supplied by the ADR-3000 or a
TPS-34A Analog Addressable Remote
Power Supply.
hat
The ADR-833 occupies only a single
address on the SLC loop although several
inputs and outputs are connected to it.
Figure 22 ADR-833 Extinguishing Control Unit
Please refer to the ADR-833 technical manual for further details.
4.2.13 LI-3000 Line Isolation Module for Class A/B
The LI-3000 Analog Addressable Line Isolation
Module provides the SLC loop with advanced
capability of protection from fault conditions such as
short- and open circuit, enabling continuous operation
of the loop by isolating the faulty section from the rest
of the loop. Without an isolator, the line cards ADR-
3002 and ADR-3000C would disconnect the loop
automatically when sensing a short circuit.
LI-3000 08/2004
JP4
JP5
JP6
SLC L
L+
L-
SLC R
L+
L-
LED 2
LED 1
PROG
LI-3000
TB 1
TB 2
Figure 23 LI-3000 Line Isolation Module
The LI-3000 communicates with the ADR-3000 through the addressable SLC loop that
also supplies its power. This module uses an address between 1 and 127. This
address should be programmed prior to installation by using the PROG-4000. Please
refer to the LI-3000 technical manual for further details.
The LI-3000 enables wiring the SLC loop in a closed loop (NFPA Style 7 Class A) as
well as branching T-shaped (NFPA Style 4 Class B) wiring configuration.
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