Signature Series Initiating Devices

Signature Series® Multisensor Detection

Signature Series intelligent detection is an entire family of fire alarm detectors as well as mounting bases, multiple-function input and output modules, and user-friendly maintenance and service tools. When used with EST3 and EST3X control panels, Signature Series devices represent the most advanced detection technology available today. At the heart of each Signature Series device is an onboard microprocessor 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 benefits: self-diagnostics and history logging; automatic device mapping; stand-alone operation; and fast, stable communication.

Automatic Device Mapping

The Signature Loop Controller learns where each device’s serial number is installed relative to other devices on the circuit. The controller keeps a map of all Signature Series devices connected to it. The System Definition Utility program also uses this mapping feature. With interactive menus and graphic support, the wired circuits between 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 discover:

• 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 configuration and are indicated during device mapping.

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 Program/Service Tool.

The information stored in device memory includes:

• Service 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

Download EST3X Addressable System Data Sheet (765k)