Manual Pdf !!link!! — Zkteco F18 Installation

| Port Label | Wire Color (Typical) | Function | Description | | :--- | :--- | :--- | :--- | | | Red | Power Input (+) | Connect to Power Supply Positive (+). | | GND | Black | Power Input (-) | Connect to Power Supply Negative (-). | | NO | Yellow/White | Relay Output | Normally Open . Connect to Lock Positive. | | COM | Blue | Relay Common | Connect to Power Supply Positive (+) for the lock. | | NC | Green | Relay Output | Normally Closed . (Use NO/COM for standard locks). | | Bell | - | Door Bell Output | Connects to an external buzzer/bell (optional). | | Button | - | Exit Button Input | Connects to an Exit Button (Dry Contact). | | GND | - | Signal Ground | Connects to Exit Button GND. | | + / - | - | Sensor Input | For Door Status Sensor (optional). |

The ZKTeco F18 is a standalone fingerprint and RFID access control terminal. It is widely used for small to medium-sized business door security. Key features include: zkteco f18 installation manual pdf

Before beginning installation, ensure your environment meets the device requirements: 2.4-inch TFT LCD color screen. | Port Label | Wire Color (Typical) |