RB-LPU400M4 4 Zone Main Board
Product Description
RB-LPU400M4 4 Zone Main Board
The RB-LPU400M4 4-Zone Main Board is the powerful digital processing core of RBtec’s IRONCLAD Fence Alarm System. Built for demanding perimeter security applications, it intelligently converts fence vibrations into accurate and dependable intrusion alarms.
Key Features and Benefits
Four-Zone Precision: Supports the monitoring of four distinct perimeter sections (up to 4000 feet (1220m) total coverage), allowing for precise localisation of intrusion attempts and independent management of alarm responses.
Advanced Signal Processing: Utilises proprietary digital algorithms to analyse fence vibrations, effectively distinguishing genuine intrusion signatures (cutting, climbing) from common environmental noise (wind, rain, traffic).
Hardware Control (22 Levels): Features built-in hardware controls (DIP switches) offering 22 fine-tuned sensitivity levels per zone for rapid, on-site calibration without the need for software, ensuring optimal performance across varying fence types and environments.
Seamless Integration: When integrated into the LPU Analyser unit, it provides dry contact relay outputs (Intrusion and Line Monitoring) for easy connection to any third-party alarm panel, CCTV system, or security management platform.
Modular & Reliable: Designed as a critical, replacement, or expansion component for the LPU-400 series analysers, ensuring long-term maintainability and high system uptime.
Equip your security system with the digital processing power needed to ensure high detection probability and minimal false alarms.
Note: This is an accessory/spare part and not a complete system. First Fence offers a line of IRONCLAD single and dual zone kits, rolls of sensor cable in 75m, 150m and 300m lengths, and complete analyser kits for 2 zones and 4 zones.
Here to help
If you need any assistance with this product line, please get in touch. The sales team is waiting to help you with the advice needed to ensure you get the perfect product. The team can be reached by calling 01283 512111 or by using the online chat tool.
Specifications & Downloads
| Zone Capacity | Dual Zone [4 Independent Zones] |
| System Compatibility | RBtec IRONCLAD Fence Sensor Cable |
| Application | Perimeter Intrusion Detection Systems [PIDS] |
What's Included
| Name | Quantity |
|---|---|
| RB-LPU400M4 2 Zone Main Board | 1 |
Specifications & Downloads
| Zone Capacity | Dual Zone [4 Independent Zones] |
| System Compatibility | RBtec IRONCLAD Fence Sensor Cable |
| Application | Perimeter Intrusion Detection Systems [PIDS] |
What's Included
| Name | Quantity |
|---|---|
| RB-LPU400M4 2 Zone Main Board | 1 |
Product Description
RB-LPU400M4 4 Zone Main Board
The RB-LPU400M4 4-Zone Main Board is the powerful digital processing core of RBtec’s IRONCLAD Fence Alarm System. Built for demanding perimeter security applications, it intelligently converts fence vibrations into accurate and dependable intrusion alarms.
Key Features and Benefits
Four-Zone Precision: Supports the monitoring of four distinct perimeter sections (up to 4000 feet (1220m) total coverage), allowing for precise localisation of intrusion attempts and independent management of alarm responses.
Advanced Signal Processing: Utilises proprietary digital algorithms to analyse fence vibrations, effectively distinguishing genuine intrusion signatures (cutting, climbing) from common environmental noise (wind, rain, traffic).
Hardware Control (22 Levels): Features built-in hardware controls (DIP switches) offering 22 fine-tuned sensitivity levels per zone for rapid, on-site calibration without the need for software, ensuring optimal performance across varying fence types and environments.
Seamless Integration: When integrated into the LPU Analyser unit, it provides dry contact relay outputs (Intrusion and Line Monitoring) for easy connection to any third-party alarm panel, CCTV system, or security management platform.
Modular & Reliable: Designed as a critical, replacement, or expansion component for the LPU-400 series analysers, ensuring long-term maintainability and high system uptime.
Equip your security system with the digital processing power needed to ensure high detection probability and minimal false alarms.
Note: This is an accessory/spare part and not a complete system. First Fence offers a line of IRONCLAD single and dual zone kits, rolls of sensor cable in 75m, 150m and 300m lengths, and complete analyser kits for 2 zones and 4 zones.
Here to help
If you need any assistance with this product line, please get in touch. The sales team is waiting to help you with the advice needed to ensure you get the perfect product. The team can be reached by calling 01283 512111 or by using the online chat tool.


