The 3-SSDC2 and 3-SDDC2 Signature Driver Controller modules provide an intelligent interface between the CPU module and Signature Series devices. Each module contains its own microprocessor used to coordinate, process and interpret information received from and sent to Signature devices. Power and communications is received directly from the control panel rail assembly. The 3-SSDC2 Single Signature Driver Controller module supports one Signature Data circuit, while the 3-SDDC2 Signature Dual Driver Controller module supports two Signature circuits. Both modules occupy one rail space in the fire alarm control cabinet and provide removable field wiring terminals to aid installation.
Innovative design gives the 3-SSDC2/3-SDDC2 and Signature devices truly “distributed intelligence”. Signature detectors and modules have their own on-board microprocessor communicating with the loop controller in a fully digital communication format. This increases the accuracy of the information coming to and from the loop controller by reducing the effects of capacitance and noise.
With decentralized intelligence much of the decision making moves from the loop controller to the devices. Advanced fire detection algorithms processed within the Signature devices effectively end unwanted alarms. Environmental compensation and multiple sensing element decision making operations are resident in the devices. Intelligent devices allow the Signature Controllers to execute communication and system functions with greater speed and low baud rates, increasing the accuracy of information transmitted between the loop controller and devices.
The Edwards EST 4-PPS/M System Power Supply Module is a high-efficiency switch-mode power supply designed for use with Edwards EST3 and EST4 large life safety platforms. It provides filtered and regulated 24 VDC power to system modules, control displays, and auxiliary circuits within the fire alarm control panel.
The module consists of two primary assemblies: a power supply unit (PSU) mainboard and a monitor (MON) module. The monitor module distributes power to the system’s local rail architecture and provides communication and diagnostic monitoring between the power supply and the fire alarm control panel.
A single 4-PPS/M power supply can deliver 7 amps of regulated output, while multiple supplies can be installed in parallel within the same enclosure to increase total system capacity. Up to four supplies can be combined to provide as much as 28 amps of available system power for connected modules and auxiliary outputs.
The unit supports universal AC input and includes a temperature-compensated battery charger designed for sealed lead-acid standby batteries. Integrated monitoring functions perform automatic battery load testing and provide diagnostic reporting to the control panel to help simplify troubleshooting and maintenance.
The Edwards EST SIGA-278 is a Signature Series intelligent addressable manual pull station featuring double-action, single-stage operation. To initiate an alarm, the user must lift the upper door marked “LIFT THEN PULL HANDLE” and then pull the alarm handle.
The device incorporates an integral microprocessor, allowing alarm decisions to be made at the station level, improving system response time and reducing sensitivity to line noise. Electronic addressing is handled by the Signature Loop Controller, eliminating manual switch or dial configuration.
The SIGA-278 is constructed of durable red Lexan and includes a keyed reset mechanism. It is designed for installation in commercial fire alarm systems utilizing Edwards Signature Loop Controllers.
The Signature Series AB4G sounder bases add audible output functions to any Signature Series detector. Bases can operate as independent local alarms, or as part of a zone or system alarm with synchronized audible output.
SIGA-AB4G bases provide sounder capability to Signature Series single-function smoke detectors. They are not intended for use with combination smoke/CO devices in Fire-plus-CO mode.
All bases are compatible with first and second generation Signature Series intelligent detectors when properly configured. SIGA-AB4G sounder bases match the finish of Signature Series devices, and the sound output slots complement the air entry openings of the detector. The result is a compact unit with an attractive appearance
The Edwards EST SIGA-CR is an intelligent analog addressable control relay module designed for use with Signature Series systems. It provides a single Form “C” dry relay contact for controlling external equipment such as door closers, fans, dampers, and similar devices. The module communicates over the Signature data loop and uses electronic addressing assigned by the loop controller. All operational decisions are processed onboard by a microprocessor, improving system response time and reducing sensitivity to line noise. The SIGA-CR is factory-configured with Personality Code 8 and requires no field configuration. This standard-mount version installs in North American 1-gang electrical boxes. A UIO plug-in version (SIGA-MCR) is also available for use with Signature UIO motherboards.
The Edwards EST SIGA-CT2 is an intelligent analog addressable dual input module designed to connect and supervise two Class B normally-open dry contact initiating device circuits (IDCs) on the Signature Series signaling line circuit (SLC).
Each input circuit is independently programmable using installer-selected “personality codes” downloaded from the Signature loop controller. Supported applications include Alarm (latching), Alarm with delayed latching (waterflow), Supervisory, and Monitor functions.
The module mounts in a standard North American 1-gang electrical box and provides separate I/O and data loop connections. It incorporates onboard microprocessor intelligence for signal analysis and alarm decision-making, and supports automatic device mapping and electronic addressing through the loop controller or SIGA-PRO programming tool.
The Edwards EST SIGA-HRD is a Signature Series intelligent heat detector that combines fixed temperature and rate-of-rise heat detection in a single addressable device. It continuously monitors surrounding air temperature and analyzes sensor data using on-board microprocessor intelligence to determine alarm conditions.
The SIGA-HRD provides a 135°F (57°C) fixed temperature alarm point and a 15°F (9°C) per minute rate-of-rise function for rapid detection of fast-developing fires. Built-in self-diagnostics and non-volatile memory enhance long-term reliability, while automatic device mapping enables the Signature Loop Controller to supervise device location and prevent misplacement after service.
The detector features electronic addressing, a bicolor (green/red) LED for status indication, and compatibility with a wide range of Signature Series mounting bases, including standard, relay, isolator, and audible sounder bases.
The SIGA-IB is a Signature Series detector base with a built-in line fault isolator for use on a Class A signaling line circuit (SLC). It does not operate without a detector and does not support the SIGA-LED. The isolator operates as follows: A short on the line causes all isolators to open within 23 ms; at 10 ms intervals, beginning on the side of the Class A circuit nearest the loop controller, the isolators close to provide the next isolator down the line with power; when the isolator next to the short closes, it reopens within 10 ms. The process repeats beginning on the other side of the loop controller.
The Edwards EST SIGA-LED Remote LED Alarm Indicator provides a remote visual indication when a connected fire detector enters an alarm condition. The device uses a red LED behind a clear lens that pulses during an alarm event, allowing personnel to easily identify the location of an activated detector from outside the protected area.
The SIGA-LED is designed for use with Edwards Signature Series detectors and connects directly to compatible detector bases. It is typically installed outside rooms or above ceilings to indicate alarm activation from detectors located in concealed or restricted areas such as duct housings or equipment rooms.
The device operates with low power consumption and installs in standard electrical boxes. It features a high-impact polymer housing and a wide viewing angle LED indicator to provide clear alarm visibility when activated.
The Edwards EST SIGA-OSD is a Signature Optica Series intelligent optical smoke detector designed for use with control panels that utilize a Signature Loop controller. It incorporates multi-criteria optical sensing technology using dual optical wavelengths and multiple detection angles to differentiate nuisance particulates from true smoke conditions. Analog data collected from the sensing chamber is processed by an onboard microprocessor that applies digital filtering and preprogrammed alarm decision algorithms. The detector features environmental compensation, self-diagnostics, automatic device mapping, and non-volatile memory storage of maintenance history. The SIGA-OSD is listed to UL 268 7th Edition and CAN/ULC-S529 standards and is intended for commercial life safety applications requiring advanced nuisance rejection and long-term stability.
The Signature Optica Series SIGA-OSHD smoke detector brings advanced optical sensing technology to a practical design that increases efficiency, saves installation time, cuts costs, and extends life safety and property protection capabilities. Continuous self-diagnostics ensure reliability over the long-haul, while environmental compensation helps reduce maintenance costs.
The Edwards EST SIGA-RM1 riser monitor module for Signature Series loops supervises 70 Vac or 25 Vac audio risers, 12 to 24 Vdc risers, or telephone risers and reports trouble on low voltage. Electronic addressing with automatic mapping and an adjustable trouble delay simplify setup. Fits a standard 2-gang box for clean installs.
