1. Introduktion
The Lazmin112 4G Gate Opener Remote Control Switch Model G202 is a device designed for remote access control of gates, doors, and other machinery. It utilizes 4G/GSM network technology, allowing operation via free calls or SMS commands from authorized phone numbers. This device supports up to 200 authorized users and is suitable for various applications including warehouses, parking lots, and control rooms. Its primary function is to provide a secure and convenient method for controlling access without the need for traditional remote controls or physical buttons.
2. Sikkerhedsoplysninger
- Sørg for, at strømforsyningen voltage (9-36V DC) matches the device's requirements to prevent damage.
- All wiring should be performed by a qualified professional to avoid electrical hazards.
- Udsæt ikke enheden for ekstreme temperaturer, fugt eller direkte sollys.
- Hold enheden væk fra brændbare materialer.
- Disconnect power before performing any maintenance or installation procedures.
3. Pakkens indhold
Kontroller venligst, at alle nedenstående varer er inkluderet i din pakke:
- 1 x 4G Gate Opener (Model G202)
- 1 x Antenne
- 3 x Wiring Clamps
- 1 x brugermanual

Image 3.1: Package contents including the G202 unit, antenna, and wiring clamps.
4. Produktet er slutview
The Lazmin112 4G Gate Opener Model G202 features a compact design with essential components for remote access control. Key elements include the antenna connector, Nano SIM card slot, power input terminals, and relay output terminals.

Billede 4.1: Forside view of the Lazmin112 4G Gate Opener Model G202 with antenna.

Billede 4.2: Detaljeret view of the SIM card slot and wiring terminals.
5. Opsætning
5.1. SIM-kort installation
- Sørg for, at enheden er slukket.
- Locate the Nano SIM card slot on the device.
- Insert a Nano SIM card into the slot, ensuring it is correctly oriented. The SIM card must be active and have sufficient credit for SMS commands if required.
5.2. Antennetilslutning
- Screw the provided antenna onto the ANT connector on the device.
- Placer antennen for optimal signalmodtagelse.
5.3. Lednings- og strømtilslutning
- Connect the DC power supply (9-36V) to the '+' and '-' terminals. Observe polarity.
- Connect the gate or machine switch to the 'NO' (Normally Open), 'COM' (Common), and 'NC' (Normally Closed) relay output terminals as required by your application. The device provides a 3A 240V AC rated output.
- After all connections are secure, apply power to the device. The 'Run' indicator light should illuminate.
6. Betjeningsvejledning
6.1. Remote On/Off Control via Call
The device can be activated by a free call from an authorized phone number. When an authorized number calls the device's SIM card number, the device will recognize the caller ID, reject the call (to avoid charges), and then activate the relay for a programmable duration. This allows for remote gate opening or closing.
6.2. Managing Authorized Phone Numbers (SMS Commands)
The G202 supports up to 200 authorized phone numbers. Users can be added or deleted using specific SMS text commands sent from a master authorized number.
- Adding a User: Send an SMS command in the format:
ADD#(f.eks.# ADD#+6512345678#). - Sletning af en bruger: Send an SMS command in the format:
DEL#(f.eks.# DEL#+6512345678#). - Listing Users: Send an SMS command to receive a list of all authorized numbers. Refer to the full user manual for the exact command.
The device will send an SMS confirmation for successful additions or deletions.
6.3. Programming Relay Opening Time (SMS Command)
The duration for which the relay remains active after a trigger call is programmable.
- Set Relay Time: Send an SMS command in the format:
TIME#(f.eks.# TIME#3#for 3 seconds). The relay operation sends an SMS confirmation to an authorized phone.
7. Specifikationer
| Feature | Specifikation |
|---|---|
| Model | G202 |
| Varemodelnummer | Lazmin112n5egurmvco |
| Card Slot | Nano SIM-kort |
| Netværkskompatibilitet | 2G, 3G, 4G |
| Frequency (GSM) | B3/B5/B8 (1800/850/900) |
| Frequency (CDMA) | BCO (800 MHz) |
| Frequency (WCDMA) | B1/B5/B8 (2100/850/900) |
| Frequency (FDD) | B1/B3/B5/B7/B8/B20 (2100/1800/850/2600/900/800) |
| Frequency (TDD) | B38/B39/B40/B41 (2600/1900/2300/2500) |
| DC strømforsyning | 9-36V |
| Antenne impedans | 50Ω |
| Relæudgangsklassificering | 3A 240V AC |
| Authorized Phone Numbers | Op til 200 |
8. Fejlfinding
- Device not responding to calls:
- Sørg for, at SIM-kortet er korrekt isat og aktivt.
- Verify that the calling number is authorized in the device's memory.
- Check for sufficient network signal strength.
- Confirm the device is powered on and the 'Run' indicator is lit.
- SMS commands not working:
- Ensure the SMS is sent from a master authorized number.
- Verify the SMS command format is correct.
- Check SIM card balance for SMS sending capability.
- Relay not activating:
- Inspect wiring connections to the gate/machine switch.
- Confirm the power supply is stable and within the specified range.
9. Vedligeholdelse
- Hold enheden ren og fri for støv. Brug en blød, tør klud til rengøring.
- Regularly check all wiring connections for security and integrity.
- Ensure the antenna is securely attached and positioned for optimal signal.
- Avoid placing the device in areas with high humidity or extreme temperatures.
10. Garanti og support
For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your purchase receipt as proof of purchase for any warranty claims.





