The **KTS-NB-R** is an **electronic time recorder (punch clock)** manufactured by KTS, primarily used for tracking employee attendance. Unlike modern biometric scanners, this device is an electro-mechanical system that utilizes physical time cards. Below is an explanation of its core electronic components and technical features. --- ## 1. Core Electronic Components The KTS-NB-R relies on a combination of digital logic and precision mechanical actuators: | Component | Function | | :--- | :--- | | **Microprocessor** | The "brain" that tracks the internal real-time clock and controls the motor movements. | | **Dot Matrix Print Head** | A small electronic head that strikes the ink ribbon to print high-definition characters on the card. | | **LCD/LED Display** | A digital screen on the front showing the current time, date, and day of the week. | | **Optical Sensors** | IR sensors that detect the presence of a paper card to trigger the automatic "feed and print" mechanism. | | **Internal Lithium Battery** | Maintains the internal clock settings and memory for up to 3–5 years during power outages. | | **Power Transformer** | Converts AC wall power (110V/220V) to low-voltage DC for the circuit board and motors. | --- ## 2. Technical Specifications These specifications define the electronic performance of the unit: * **Power Supply:** AC 100V - 240V, 50/60Hz. * **Power Consumption:** Typically 2W (Standby) to 10W (Printing). * **Printing Method:** 9-pin dot matrix. * **Calendar System:** Perpetual calendar (automatically adjusts for leap years and months). * **Accuracy:** Monthly accuracy of +/- 15 seconds at normal temperature. --- ## 3. Key Electronic Features ### A. Automatic Column Shifting The device can be programmed to electronically move the print position across columns (In/Out/Lunch) based on a pre-set schedule. This prevents employees from over-printing on the same spot. ### B. Dual-Color Printing It features a two-color ribbon (Red/Black). The internal logic can be programmed to print in **Red** if an employee arrives late or leaves early, allowing for quick visual audits by management. ### C. Signal Output/Melody Many KTS-NB-R models include an internal electronic melody speaker or a relay output to trigger external factory bells or sirens to signal shift changes. ### D. Backup Battery System (Optional) While the lithium cell keeps the *time*, some versions support a Ni-Cd battery pack that allows the machine to continue *printing* even during a total power failure. --- ## 4. Maintenance & Safety * **Ribbon Cartridge:** The print head requires an electronic ribbon cassette (usually Black/Red). * **Reset Button:** A small recessed button on the main PCB used to clear memory or reset the CPU in case of a software hang.