1. Introduction
The Fei Jian Electronics G203 Gate Controller is a versatile remote access control device designed for various applications, including gates, doors, and machines. It supports 2G, 3G, and 4G networks, allowing for remote operation via free calls, SMS commands, or a dedicated mobile application. This manual provides detailed instructions for the installation, operation, and maintenance of your G203 controller.
Figure 1: G203 Gate Controller with Quick Guide Manual
2. Key Features
- Supports 2G, 3G, and 4G network modes for broad compatibility.
- Ability to add and manage up to 1001 authorized users.
- Remote control via free calling, SMS commands, or a mobile application.
- Configurable relay close time: 0-9999 seconds (G203 model).
- Relay can be set to remain ON without time limitation.
- Inquire all authorized users with a single command.
- Real authorization protection ensures unknown callers are ignored.
- No distance limitation for operation; control from anywhere globally.
- One relay output (3A/240VAC) for connecting to various switches (doors, machines).
- Wide voltage input range: DC 9V-36V.
Figure 2: G203 Gate Controller highlighting its features
3. Technical Specifications
| Specification | Detail |
|---|---|
| Model | G203 |
| Network Mode | 2G / 3G / 4G |
| Input Voltage | DC 9V-36V |
| Relay Output | 1 x Relay (3A/240VAC) |
| Authorized Users | Up to 1001 |
| Relay Close Time (G203) | 0-9999 seconds |
| Material | ABS Casing |
| Dimensions (L x W x H) | Approx. 96.5mm x 50mm x 31.5mm (3.79in x 1.96in x 1.24in) |
| Weight | Approx. 110g |
Figure 3: G203 Gate Controller Dimensions
4. Package Contents
Upon opening the package, ensure all the following items are present:
- 1 x G203 Access Controller
- 1 x Antenna
- 1 x Quick Guide Manual
5. Setup and Installation
5.1 SIM Card Installation
- Ensure the G203 controller is powered off.
- Locate the Nano SIM card slot on the device.
- Insert a Nano SIM card (2G/3G/4G compatible) into the slot until it clicks into place. Ensure the SIM card has an active plan and sufficient credit for SMS and calls.
- Attach the provided antenna to the ANT connector.
Figure 4: SIM Card and Antenna Installation
5.2 Wiring the Controller
The G203 controller requires a DC 9V-36V power supply and connects to your gate or machine via its relay output. Always ensure power is disconnected before performing any wiring.
5.2.1 Power Supply Connection
- Connect the positive (+) terminal of your DC 9V-36V power supply to the '+' terminal on the G203 controller.
- Connect the negative (-) terminal of your DC power supply to the '-' terminal on the G203 controller.
5.2.2 Relay Output Connection
The relay output has three terminals: NO (Normally Open), COM (Common), and NC (Normally Closed). Choose the appropriate connection based on your gate or machine's requirements.
Figure 5: Basic Wiring Diagram (e.g., controlling a light)
Figure 6: Wiring Diagram for Keypad Integration
5.3 Mounting
The G203 controller is designed for wall mounting. Use appropriate screws and anchors for your mounting surface. Ensure the antenna has clear reception.
6. Operation
6.1 Initial Power-Up
After completing all wiring and SIM card installation, connect the power supply. The device will power on, and indicator lights will show its status (e.g., network signal, relay status).
6.2 Adding Authorized Users
Authorized users can operate the gate by making a free call to the SIM card number in the G203 controller. The controller will recognize the number and activate the relay without answering the call. To add users, send an SMS command from an administrator phone (usually the first number to call the device after setup, or a pre-configured admin number).
SMS Command Example: ADD#<PhoneNumber># (Consult the Quick Guide Manual for specific SMS command formats and administrator setup).
6.3 Remote Control via Call/SMS/App
- Call Control: An authorized user calls the G203's SIM card number. The controller will reject the call and activate the relay for the configured duration.
- SMS Control: Specific SMS commands can be sent to the controller for various functions, such as activating the relay, changing settings, or inquiring user lists. Refer to the Quick Guide Manual for a complete list of SMS commands.
- App Control: A dedicated mobile application (if available) can provide a user-friendly interface for controlling the gate and managing settings. Download the app from your device's app store and follow its instructions for pairing with the G203.
6.4 Configuring Relay Close Time
The relay close time for the G203 model can be set between 0 and 9999 seconds. This determines how long the relay remains activated after a trigger. This setting is typically configured via SMS commands. Refer to your Quick Guide Manual for the exact command format.
6.5 Inquiry of Authorized Users
An administrator can send a specific SMS command to the G203 controller to receive a list of all currently authorized users. This helps in managing access permissions effectively.
Video 1: Product overview demonstrating G203 Gate Controller features and operation.
7. Maintenance
- Cleaning: Periodically clean the exterior of the device with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Connection Check: Regularly inspect all wiring connections to ensure they are secure and free from corrosion or damage.
- Antenna Placement: Ensure the antenna remains in an optimal position for good signal reception. Avoid placing the device in enclosed metal boxes that could block the signal.
- SIM Card Status: Periodically check the status of your SIM card to ensure it is active and has sufficient credit/data for continuous operation.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Incorrect power supply voltage or wiring. | Verify the power supply is within DC 9V-36V and wiring is correct. Check power source. |
| Gate/machine does not activate when called. |
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| SMS commands are not working. |
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| Poor network signal. | Weak cellular coverage or antenna obstruction. | Relocate the device to an area with better cellular reception. Ensure the antenna is unobstructed and properly connected. |
9. User Tips
- For optimal performance, use a SIM card from a reliable provider with good network coverage in the installation area.
- Always test the system thoroughly after installation and any configuration changes to ensure proper operation.
- Keep a record of all authorized phone numbers and administrator commands for easy reference.
- Consider using a dedicated power supply for the G203 to avoid interference with other systems.
10. Support and Service
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact your vendor or the manufacturer. Refer to the product packaging or purchase documentation for contact information.
The product is designed for reliable operation. General service commitments include:
- Fast delivery (if applicable).
- Refunds for lost or damaged items (check seller policy).
- Free returns within 90 days (check seller policy).
Please note that specific warranty terms and conditions may vary by region and seller. Always consult your purchase agreement for detailed information.