KiaoTime KT-G3-A 4G GSM AUTO Relay Switch Instruction Manual

Introduction

The KiaoTime KT-G3-A is a sophisticated 4G/3G network-based relay switch designed for remote control applications. This device features two independent relay channels with robust 30A contacts, enabling control over various systems such as gate openers, lighting, hog traps, and aircraft engine pre-heaters. It operates by recognizing caller ID from authorized phone numbers or through SMS commands, providing an unlimited control range. The KT-G3-A is specifically compatible with AT&T and T-Mobile 4G and 3G networks in the USA.

Key features include:

• USA Multi-Bands 4G Module for AT&T and T-Mobile compatibility.
• Two 30A high-power relay contacts for diverse applications.
• Free charge phone call control for Relay 1, utilizing caller ID recognition.
• SMS feedback confirmation for executed commands.
• Multiple programming options: Android App, SMS text, Windows PC software via USB, and optional WiFi LAN hotspot access.

Figure 1: Illustrative applications of the KiaoTime KT-G3-A relay switch.

Setup

1. SIM Card Installation

The device requires a prepaid 4G SIM card from a compatible cellular provider (AT&T or T-Mobile in the USA). Ensure the SIM card is activated and provisioned for data and voice services.

1. Carefully open the device casing to access the circuit board.
2. Locate the SIM card slot on the circuit board.
3. Insert the activated 4G SIM card into the slot, ensuring correct orientation as indicated on the board. If using a nano SIM, use the appropriate adapter to fit the micro SIM slot.
4. Close the device casing securely.

Figure 2: Internal circuit board with SIM card slot highlighted.

2. Power Connection

Connect the device to a stable DC power source.

1. Connect the provided 12V 1ADC power adapter to the DC input port on the relay switch.
2. Plug the power adapter into a suitable electrical outlet. The device will power on, and indicator lights will illuminate.

Figure 3: KiaoTime KT-G3-A device and accessories, including the power adapter.

3. Antenna Connection

Ensure proper cellular signal reception by connecting the antennas.

1. Connect the internal antenna to the designated connector on the circuit board.
2. For enhanced signal strength, connect the external high-gain antenna to its respective port on the device. Position the external antenna for optimal reception.

Figure 4: KiaoTime KT-G3-A device showing antenna connections.

4. Wiring (Relay Connections)

Wire your target devices to the relay outputs.

1. Identify the CH1 and CH2 relay terminals, which include Normally Open (NO), Normally Closed (NC), and Common (COM) connections.
2. Connect your appliances (e.g., gate motor, lights, heater) to the appropriate terminals based on whether you require a Normally Open or Normally Closed circuit for activation.
3. Utilize the large wire connection screws to ensure secure and stable wiring. Refer to the specific wiring diagram for your application.

Figure 5: Detail of 30A relay contacts and wiring terminals.

5. Software and App Setup

Configure the device using the provided software or mobile application.

1. Insert the U-disk into a computer and install the Windows PC software or download the Android application.
2. Connect the device to your computer via the USB to micro-USB cable for PC software configuration.
3. Follow the software/app instructions to add authorized phone numbers, set relay parameters (e.g., ON/OFF duration, timer functions), and configure other device settings.
4. Alternatively, use SMS commands for basic programming if software access is not preferred or available.

Figure 6: Example of the control application interface.

Operating Instructions

1. Phone Call Control

The device allows control of Relay 1 via a phone call from an authorized number without incurring call charges.

• From an authorized phone number, dial the phone number of the SIM card installed in the KT-G3-A device.
• The device will recognize your caller ID and automatically toggle Relay 1 (turn ON/OFF) without answering the call. This method does not use call minutes.

2. SMS Control

Control relays and query status by sending specific SMS commands.

• Send predefined SMS commands to the device's phone number to activate or deactivate relays (e.g., 'CH1ON', 'CH2OFF').
• Refer to the U-disk manual for a complete list of SMS commands and their syntax.

3. Timer Control

Schedule automatic relay operations.

• Using the Android application or Windows PC software, configure specific schedules for the relays to turn ON or OFF automatically at set times or for defined durations.

4. SMS Feedback Confirmation

Receive confirmation for executed commands.

• After a successful phone call or SMS command, the device will send an SMS message back to your authorized number, confirming that the command was received and processed correctly.

Maintenance

To ensure optimal performance and longevity of your KiaoTime KT-G3-A relay switch, follow these maintenance guidelines:

• Regular Inspection: Periodically inspect all wiring connections to ensure they are secure and free from corrosion or damage.
• Environmental Protection: Keep the device in a dry environment, protected from direct sunlight, excessive moisture, dust, and extreme temperatures (outside -25°C to +55°C).
• Cleaning: Clean the exterior of the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
• Firmware Updates: Check the official KiaoTime website or the provided software periodically for any available firmware updates to ensure the device operates with the latest features and security enhancements.

Troubleshooting

If you encounter issues with your KiaoTime KT-G3-A, refer to the following troubleshooting steps:

• Device Not Responding to Calls/SMS:
  • Ensure the SIM card is properly inserted and activated with sufficient balance/credit for SMS services.
  • Verify that the device has adequate 4G/3G network coverage in its location.
  • Confirm that the phone number you are using to control the device is registered as an authorized number in the device's settings.
  • Check if the SIM card is compatible with current VoLTE standards, as older 3G/4G networks may be phased out by carriers.
• Relay Not Activating:
  • Check the power supply to the device to ensure it is receiving stable DC 12-24V.
  • Inspect the wiring connections between the relay switch and the connected appliance for any loose or incorrect connections.
  • Ensure the current draw of the connected appliance does not exceed the relay's maximum contact rating of 30A.
• No SMS Feedback:
  • Verify that the SIM card has active SMS service and sufficient credit.
  • Check the device settings via the app or PC software to ensure SMS feedback is enabled.
• Connectivity Issues (AT&T/T-Mobile):
  • Confirm that the SIM card is provisioned for the correct 4G/3G bands supported by the device (FDD-LTE: B2/B4/B12, 3G-WCDMA: B2/B4/B5).
  • If issues persist, contact your cellular provider to confirm SIM card compatibility and network status in your area.

Specifications

Figure 7: KiaoTime KT-G3-A device dimensions.

Warranty Information

The KiaoTime KT-G3-A 4G GSM AUTO Relay Switch is covered by a standard manufacturer's warranty. For detailed information regarding warranty terms, coverage period, and conditions, please refer to the documentation provided on the U-disk included with your product. It is recommended to retain your proof of purchase for warranty claims.

Customer Support

For technical assistance, troubleshooting guidance, or any other product-related inquiries, please contact KiaoTime customer support. You can find contact information on the U-disk provided with your device or by visiting the official KiaoTime website. When contacting support, please have your product model (KT-G3-A) and purchase details readily available.