EDWARDS SIGA-OSCD

The Edwards SIGA-OSCD is a commercial intelligent multi-sensor smoke and carbon monoxide (CO) detector designed for compatible Edwards Signature Series fire alarm systems. It combines advanced multi-criteria optical smoke sensing with integrated life-safety carbon monoxide detection, providing reliable fire and CO protection from a single addressable device.

Using Signature Optica™ technology, the SIGA-OSCD analyzes data from multiple optical sensors with dual wavelengths and multiple detection angles to distinguish real fire conditions from common nuisance sources such as cooking particulates. Environmental compensation, self-diagnostics, and programmable sensitivity settings help maintain dependable long-term performance while reducing maintenance requirements. This product is intended exclusively for commercial fire alarm installations.

Product Functions

• Detects smoke using multi-criteria optical sensing
• Detects life-safety carbon monoxide (CO)
• Differentiates nuisance particles from actual smoke
• Reports smoke and CO alarm conditions independently
• Continuously supervises detector status
• Performs automatic self-diagnostics
• Provides environmental compensation
• Stores operating history in nonvolatile memory
• Supports automatic day/night sensitivity adjustment
• Communicates with compatible Signature Series fire alarm control panels

Compatibility

Compatible with:

• Edwards Signature Series Fire Alarm Control Panels
• Signature Loop Controllers
• IO Series Fire Alarm Systems
• SIGA-SB Standard Detector Base
• Signature Relay Bases
• Signature Fault Isolator Bases
• Signature Audible Bases

Always verify compatibility with the installed Edwards fire alarm control panel, Signature loop controller, detector base, firmware version, and project requirements before installation.

Technical Specifications

Manufacturer: Edwards
Parent Company: Carrier
Model: SIGA-OSCD
Series: Signature Optica™
Product Type: Intelligent Smoke and CO Detector
Detection Method: Multi-Criteria Optical Smoke and Carbon Monoxide
Smoke Sensitivity Range: 0.5–4.36% Obscuration/ft (1.6–13.6%/m)
Communication: Signature Series Data Loop
Addressing: Electronic Automatic Addressing
Status Indicator: Bicolor Green/Red LED
Environmental Compensation: Two Levels
Dirty Detector Warning: Two Levels
Pre-Alarm Settings: 20
Sensitivity Settings: 5
Automatic Day/Night Sensitivity: Yes
Ground Fault Detection: Supported by Module
Maximum Devices Per Loop: Up to 250 Signature Addresses
Memory: Nonvolatile
Mounting: Compatible Signature Detector Base Required
Application: Indoor Commercial Fire Alarm Systems