3-SDDC1 | Edwards EST Dual Signature Loop Controller Module

Edwards EST · PLCs & Industrial Controllers

Description  The Edwards EST 3-SDDC1 is a dual Signature loop controller module that supports up to two Class A, Class B, or Class X data circuits for Signature Series detectors and modules. It integrates distributed intelligence through digital communication, enabling fast response, accurate supervision, and compatibility with the full range of Signature and Signature II devices.     Technical Specifications  Condition New/Never Used Surplus Brand Edwards EST Category Fire Alarm Systems Part Number 3-SDDC1 Subcategory Loop Controller Module Type Dual Signature Driver Controller Circuits Supported Two Signature data circuits (Class A, B, or X) Device Capacity 250 Signature detectors + 250 Signature modules per controller Node Capacity Up to 5 modules per node (10 circuits total) Communication Digital, noise-resistant, distributed intelligence Processor Dedicated onboard microprocessor Compatibility Signature and Signature II devices (including CO detection) Response Time Loop alarm in under 750 ms Device Supervision Detects missing, unexpected, or relocated devices Mapping Automatic nonvolatile as-built mapping with stored device data Mounting Occupies one rail space in EST3 cabinet, mounts to local rail Dimensions 5 in W × 5 in H × 10 in D Weight 1 lb Information About 3-SDDC1 The 3-SDDC1 is an Edwards EST Signature Dual Driver Controller module designed to expand the capabilities of EST3 fire alarm control systems. It supports two fully supervised Signature data circuits, accommodating up to 250 detectors and 250 modules per controller. Each unit features a dedicated microprocessor to manage communication, increasing accuracy and reducing susceptibility to electrical noise. With built-in mapping, device location supervision, and compatibility with the entire Signature II line, the 3-SDDC1 ensures reliable operation in both new and retrofit installations. Key Features: Dual Circuit Support: Provides two Class A, B, or X Signature data circuits for large system capacity. Distributed Intelligence: Equipped with its own processor for faster and more accurate device communication. Device Capacity: Supports up to 250 detectors and 250 modules per circuit for scalable installations. Advanced Supervision: Monitors device addresses, unexpected additions, and location changes. Automatic Mapping: Stores both expected and actual device data, including wiring sequence. Compatibility: Fully backward compatible with earlier Signature loop controllers. Fast Response: Processes loop alarms in less than 750 milliseconds for timely detection. Expandable: Up to five 3-SDDC1 modules per node provide 10 Signature circuits in total. Convenient Installation: Removable field wiring terminals simplify service and system setup. Adaptive Sensitivity: Automatic day/night sensitivity adjustment improves system accuracy. The 3-SDDC1 delivers the reliability and precision required for advanced fire alarm detection and control in complex installations.

Brand: Edwards EST · Category: PLCs & Industrial Controllers

Key features

• Dual Circuit Support: Provides two Class A, B, or X Signature data circuits for large system capacity.
• Distributed Intelligence: Equipped with its own processor for faster and more accurate device communication.
• Device Capacity: Supports up to 250 detectors and 250 modules per circuit for scalable installations.
• Advanced Supervision: Monitors device addresses, unexpected additions, and location changes.
• Automatic Mapping: Stores both expected and actual device data, including wiring sequence.
• Compatibility: Fully backward compatible with earlier Signature loop controllers.
• Fast Response: Processes loop alarms in less than 750 milliseconds for timely detection.
• Expandable: Up to five 3-SDDC1 modules per node provide 10 Signature circuits in total.
• Convenient Installation: Removable field wiring terminals simplify service and system setup.
• Adaptive Sensitivity: Automatic day/night sensitivity adjustment improves system accuracy.

Specifications

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