Specifications

Notification
Appliances
Hazardous Location
Devices
Door Holders
& Relays
Initiating
Devices
25
EST3
Intelligent Initiating Devices
EST3’s Signature Series intelligent analog-addressable
system is an entire family of fire alarm and security detectors
as well as mounting bases, multiple-function input and out-
put modules, and user-friendly maintenance and service tools.
Analog information from equipment connected to Signature
devices is gathered and converted into digital signals. At the
heart of each Signature Series device is an on-board micro-
processor that analyses these signals and decides whether
or not to input an alarm. The power of this approach, known
as distributed intelligence, provides four important ben-
efits: self-diagnostics and history logging; automatic device
mapping; stand-alone operation; and, fast, stable commu-
nication.
Self-diagnostics and History Log – Signature Series devices
constantly run self-checks to provide important maintenance
information. The results of these checks are automatically
updated and permanently stored in the device’s non-volatile
memory. This information is accessible for review using the
System Definition Utility and/or the SIGA-PRO Signature Pro-
gram/Service Tool. The information stored in device memory
includes:
• device serial number, address, and type;
• date of manufacture, hours of operation, and last
maintenance date;
• number of recorded alarms and troubles; and,
• up to 32 possible trouble codes which may be used to
specifically diagnose faults.
Automatic Device Mapping – The Signature Loop Controller
learns where each device’s serial number address is installed
relative to other devices on
the circuit. The controller
keeps a map of all Signa-
ture Series devices con-
nected to it. The System
Definition Utility program
also uses this mapping
feature. With interactive
menus and graphic sup-
port, the wired circuits be-
tween each device can be
examined. Layout or As-Built drawing information showing
branch wiring (T-taps), device types and their addresses are
stored on disk. This takes much of the mystery out of the
installation and makes the preparation of As-Built drawings
fast and very efficient.
Device mapping allows the Signature Loop Controller to dis-
cover:
• unexpected additional device addresses;
• missing device addresses; and,
• changes to the wiring in the circuit.
Most Signature modules use a personality code selected by
the installer to determine their actual function. Personality
codes are downloaded from the controller during system con-
figuration and are indicated during device mapping.
Fast Stable Communication – Built-in intelligence means less
information needs to be sent between the device and the
Signature Loop Controller. Other than routine supervisory
polling responses, Signature devices only need to communi-
cate with the controller when they have something new to
report. This provides very fast control panel response and
allows a lower baud rate (speed) to be used for communica-
tion on the circuit. The lower baud rate offers several advan-
tages including:
• less sensitivity to circuit wire characteristics;
• less sensitivity to noise glitches on the cable;
• less emitted noise from the analog wiring; and,
• twisted or shielded wiring is not required.
Testing & Maintenance – Automatic self-diagnosis identifies
when a Signature device is defective and issues a trouble
message. The user-friendly maintenance program shows the
current state of each device and other pertinent information.
Single devices may be turned off temporarily, directly from
the control panel.
Seamless Security – The
SIGA-MD Motion Detector
and the SIGA-SEC2 Security
Module bring all the fea-
tures and performance
benefits of the Signature
line of analog addressable
devices into any applica-
tion that has a security
function. These devices
share the same wiring and
loop controller as fire alarm devices, and do so without the
need for extra risers and associated wiring from the control
panel. In fact, EST3 is the only system that offers this kind of
total co-existence among fire and security devices.
Detectors & Bases p. 26
Input/Output Modules p. 28
Pull Stations p. 34
Amplifiers & Power Supplies p.35
Accessories p. 36
Signature Series
Intelligent Analog
Initiating Devices
Test Fire
Type of Detector
SIGA-IS Ion
SIGA-PS
Photo
SIGA-HRS,
SIGA-HFS
Heat
SIGA-PHS
Photo/
Heat
SIGA-IPHS
Ion/Photo/
Heat
Open Wood
optimum
unsuitable
optimum
very suitable
optimum
Wood Pyrolysis suitable
optimum
unsuitable
optimum optimum
Smoldering Cotton very suitable
optimum
unsuitable
optimum optimum
Poly Urethane Foam very suitable very suitable suitable very suitable
optimum
n Heptane
optimum
very suitable suitable
optimum optimum
Liquid Fire, no Smoke unsuitable unsuitable
optimum
very suitable
optimum
True multisensor technology means that a single device can perform optimally under a
wider range of conditions than any single-sensor detector.