The Edwards EST iO64 intelligent life safety system offers the power of high-end intelligent processing in a configuration that delivers an uncomplicated solution for small to mid-sized applications. With intelligent detection, electronic addressing, automatic device mapping, optional Ethernet® connectivity, and a full line of easily-configured option cards and modules, this flexible system offers advanced features that benefit building owners and contractors alike.
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System Capacity:
Loops: 1 Class A or Class B intelligent device loopDevice Addresses: Supports up to 64 intelligent device addresses (any combination of detectors and modules)Notification Appliance Circuits (NACs): 2 Class B NACs (optional Class A with SA-CLA module)
Operating Voltage:
Input Voltage: 115 VAC or 230 VAC (model-dependent, typically 120 VAC @ 60 Hz standard in North America)Loop Voltage: 19 VDC nominal, 15.2–19.95 VDC rangeMaximum Loop Voltage: 20V peak-to-peak
Current Consumption:
Standby Current: 125 mA typical (base system, excluding devices)Alarm Current: Up to 3.5 A max (dependent on NAC load and auxiliary power usage)Loop Current: 250 µA (standby), 400 µA (activated) per device typical
Power Supply:
Output: 24 VDC, 3.5 A total (shared between NACs and auxiliary power)Battery Backup: Supports sealed lead-acid batteries, typically 7–18 Ah (depending on enclosure and standby requirements)Battery Charger: Built-in, supervised, 27.6 VDC charging voltage
Notification Appliance Circuits (NACs):
Output: 24 VDC, 1.5 A max per NAC (3.5 A total system limit)Synchronization: Supports Genesis horn silence and UL 1971-compliant strobe synchronizationWiring: Class B standard; Class A with optional SA-CLA module
Loop Specifications:
Wiring: Class B (Style 4) or Class A (Style 6/7 with SA-CLA module)Maximum Loop Length: Up to 10,000 ft (3,048 m) with #18 AWG (0.75 mm²) twisted-pair, unshieldedCompatibility: Edwards Signature Series intelligent detectors and modules
Environmental Specifications:
Operating Temperature: 32°F to 120°F (0°C to 49°C)Storage Temperature: -4°F to 140°F (-20°C to 60°C)Humidity: 0 to 93% RH, non-condensing
Display and Interface:
Display: 4 x 20 character backlit LCDIndicators: LEDs for Power (green), Alarm (red), Trouble (yellow), Supervisory (yellow), and Silence (yellow)Controls: Two programmable switches with LEDs and custom slide-in labels
Wiring:
Terminals: Screw terminals accepting #18 AWG (0.75 mm²) to #12 AWG (2.5 mm²)Connections: Standard unshielded wiring; supports retrofit applications
Communication and Connectivity:
Addressing: Electronic addressing with automatic device mappingOptional Modules:
SA-DACT: Dual-line dialer/modem (supports Contact ID, 4/2 formats)SA-ETH: Ethernet port for diagnostics, programming, and reportingSA-232: RS-232 serial port for printers or computers
Annunciators: Supports up to 8 serial annunciators (LCD, LED, or graphic)
Physical Characteristics:
Dimensions: Approximately 14.5″ H x 12.5″ W x 4.25″ D (368 mm x 318 mm x 108 mm)Weight: ~15 lbs (6.8 kg) with enclosure, without batteriesEnclosure: Surface-mount, red or gray door options (e.g., iO64RD = red door, iO64GD = gray door)
Certifications:
Listings: UL 864, ULC-S527, CSFM, FM ApprovedCompliance: NFPA 72, ADA accessibility standards
Additional Features:
Diagnostics: Built-in reporting for maintenance alerts, alarm verification by point, and detector sensitivityProgramming: Via front panel or optional laptop configuration utilityRetrofit Compatibility: Uses existing wiring in most cases, no shielded cable requiredRelay Outputs: Form C contacts for Alarm and Trouble, Form A for Supervisory
