- Usually Ships 4 to 7 Business Days
MSRP:
$372.60 - $493.20
$338.73 - $448.36
EMX
EMX Quad Relay Access Control Board
MSRP:
$372.60 - $493.20
$338.73 - $448.36
- Usually Ships 4 to 7 Business Days
EMX Defender Quad Relay Access Controller
The EMX Defender Quad Relay Access Controller is a powerful, high-volume access control system designed for gated communities, private security estates, and commercial properties. Available in two configurations — the Defender 400 Board Only or the Defender with IP65 Weatherproof Enclosure — this system combines convenience, security, and scalability for modern access control needs.
Why Choose the Defender
- Simultaneously manage vehicle and pedestrian gates for seamless traffic flow
- Supports up to 20,000 users with full audit trail
- Works both online and offline with distributed database control
- Remote door release for convenient, secure access management
- Real-time processing and TCP/IP communication for instant response
Key Features
- 4 reader ports (2 in, 2 out), compatible with standard 26-bit Wiegand readers
- Controls up to 4 gates/doors via quad SPDT relays (software configurable)
- 4 request-to-exit inputs (push-button, motion sensor, etc.)
- Event buffer capacity of 100,000 for high-volume traffic
- Diagnostic LED indicators for quick system status checks
- Reliable 12VDC @ 3A power supply
Configuration Options
Defender 400 Board Only
- Compact PCB: 6.3" × 4.2" (160 × 106 mm)
- Low idle consumption (<100 mA; TCP comms ~225 mA)
- Perfect for integration into existing enclosures or panels
Defender with IP65 Weatherproof Enclosure
- Lockable, IP65-rated enclosure with clear hinged Lexan cover
- Swing-out internal plate for easy wiring and service
- Dimensions: 11.8" × 7.9" × 6.7" (300 × 200 × 170 mm)
- Product weight: 4.2 lbs
- Designed for outdoor and harsh environments
Technical Specifications
| Network Communication | TCP/IP (10/100 Mbps adaptive) |
| Controller Support | Up to 4 readers |
| Gate/Door Control | Controls up to 4 gates/doors |
| User Memory | 20,000 users |
| Event Buffer | 100,000 events |
| Reader Protocol | Standard 26-bit Wiegand |
| Request-to-Exit Inputs | Up to 4 |
| Output Relays | 4 SPDT relays (N/O–COM–N/C) |
| Door Position Input | N/C or reed switch |
| Power Supply Required | 12VDC @ 3A |
| Operating Temperature | -32°F to 149°F (-35°C to 65°C) |
| Operating Humidity | 10–90% RH, non-condensing |
| Controller Distance | Up to 328 ft (network dependent) |
| Networks Supported | Unlimited |
Perfect For
- Gated communities and private residential estates
- Commercial and industrial properties
- Parking facilities and perimeter security
- Any site needing scalable, professional access control
Upgrade your access control with the EMX Defender Quad Relay Access Controller today. Select your preferred configuration from the dropdown menu above before adding to cart.
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