The **LC-06-R** typically refers to a specific series of **Passive Infrared (PIR) Motion Detectors** produced by DSC (Digital Security Controls). These devices are engineered for residential and commercial security systems to detect human movement while ignoring small animals (pet immunity). --- ## 1. Technical Specifications | Feature | Specification | | :--- | :--- | | **Detection Method** | Dual Element Passive Infrared (PIR) | | **Input Voltage** | 8.2 to 16 VDC | | **Current Consumption** | 8 mA (Standby) / 10 mA (Alarm) | | **Pet Immunity** | Up to 25 kg (55 lbs) | | **Alarm Contact** | Form A (NC) 0.1A @ 28 VDC | | **Tamper Switch** | NC 0.1A @ 28 VDC | | **Operating Temp** | -10°C to 50°C (14°F to 122°F) | --- ## 2. Key Electronic Components The LC-06-R operates through several integrated electronic subsystems: ### A. The Pyroelectric Sensor The "heart" of the unit is a **Dual-Element PIR sensor**. - It monitors the infrared radiation (heat) emitted by objects in its field of view. - By using two elements, the sensor can distinguish between a general change in room temperature and a heat source moving across its zones. ### B. Fresnel Lens The plastic cover is not just a protector; it is a **multi-segmented Fresnel lens**. - It focuses infrared energy from specific "fingers" of detection onto the PIR sensor. - The "R" in the model often signifies a specific lens pattern or sensitivity adjustment for pet immunity. ### C. ASIC (Application Specific Integrated Circuit) The board contains an onboard processor that performs **Digital Signal Analysis**. - It filters out "noise" such as light flickers or slow temperature changes. - It calculates the speed and mass of the heat source to determine if it matches a human profile or a small pet. ### D. Potentiometer (Sensitivity Adjustment) There is usually a small trimpot (rotary resistor) on the PCB. - This allows the installer to increase or decrease the PIR sensitivity based on the room size and environment. --- ## 3. Terminal Block Connections | Terminal | Function | Description | | :--- | :--- | :--- | | **TAMP** | Tamper | Connected to a 24-hour protection zone; triggers if the case is opened. | | **NC / C** | Alarm Relay | Normally Closed contact that opens when motion is detected. | | **- / +** | Power | 12VDC input from the security panel. | --- ## 4. Visual Indicators The device features a **Red LED** which serves as a walk-test indicator. This can be enabled or disabled via a jumper on the internal circuit board to keep the sensor discreet during normal operation.