1. Introducció
This manual provides essential information for the proper installation, operation, and maintenance of the MikroTik LHG 5 Light Head Grid 5GHz CPE device. Please read this manual thoroughly before using the device to ensure safe and efficient operation.
Producte acabatview
The MikroTik LHG 5 is a compact and lightweight 5GHz 802.11 a/n wireless device featuring an integrated dual-polarization 24.5 dBi grid antenna. It is designed for point-to-point links or as a Customer Premises Equipment (CPE) for longer distances, supporting the Nv2 TDMA protocol. The grid antenna design offers protection against wind, and the integration of the antenna element directly into the wireless unit minimizes cable loss.
Característiques clau
- Integrated 24.5 dBi dual-polarization grid antenna.
- 5GHz 802.11 a/n wireless standard.
- Supports Nv2 TDMA protocol for efficient long-distance links.
- Passive Power over Ethernet (PoE) input.
- One 10/100 Ethernet port.
- 600 MHz CPU, 64 MB RAM, 16 MB storage.
- Wind-resistant grid design.
2. Informació de seguretat
- Seguiu sempre els codis i les normatives elèctriques locals durant la instal·lació.
- Ensure the device is securely mounted to prevent falling.
- No feu servir el dispositiu a prop de l'aigua ni en ambients excessivament humits.
- Desconnecteu l'alimentació abans de realitzar qualsevol procediment de manteniment o instal·lació.
- Only use power adapters and cables specified by the manufacturer.
- This device should be installed by trained personnel.
3. Maquinari acabatview
The LHG 5 consists of a central unit with an integrated antenna feed and a grid reflector assembly. The Ethernet port and power input are located on the central unit.

Figura 1: Davant view of the MikroTik LHG 5 central unit, showing the integrated antenna feed and the Ethernet port with a yellow cable connected.
Components:
- Unitat central: Houses the wireless electronics, CPU, RAM, storage, and Ethernet port.
- Integrated Antenna Feed: Part of the central unit, connected directly to the wireless electronics.
- Grid Reflector: The large mesh dish that focuses the radio signal.
- Suport de muntatge: For attaching the device to a pole or mast.
- Port Ethernet: 10/100 Mbps port for data and Passive PoE input.
4. Configuració i instal·lació
4.1 Contingut del paquet
Please verify that all components are present in your package. Refer to the product packaging for a detailed list of included items, which typically includes the LHG 5 unit, mounting kit, and a PoE injector (may vary by region/bundle).
4.2 Muntatge del dispositiu
The LHG 5 is designed for outdoor pole mounting. Ensure the mounting surface is stable and capable of supporting the device, especially in windy conditions. The grid design helps reduce wind load.
- Assemble the grid reflector according to the diagrams provided in the separate assembly guide (if applicable).
- Attach the central unit to the assembled grid reflector.
- Secure the mounting bracket to the back of the central unit.
- Mount the entire assembly to a pole or mast using the provided U-bolts or clamps. Ensure the device is oriented correctly for optimal signal alignment.
- Tighten all fasteners to prevent movement due to wind or vibration.

Figura 2: Diversos views of the MikroTik LHG 5, illustrating its components, assembly, and an example of pole mounting.
4.3 Alimentació del dispositiu
The LHG 5 supports Passive Power over Ethernet (PoE). It requires a PoE injector or a PoE-capable switch to provide power and data over a single Ethernet cable.
- Connect one end of an Ethernet cable to the LHG 5's Ethernet port.
- Connect the other end of the Ethernet cable to the "PoE" or "Data+Power" port of a Passive PoE injector.
- Connect a standard Ethernet cable from the "LAN" or "Data" port of the PoE injector to your network switch or computer.
- Plug the PoE injector's power adapter into an electrical outlet. The device will power on.
Nota: Ensure the PoE injector provides the correct voltage for the LHG 5 (typically 10-30V DC, refer to device label for exact requirements).
5. Funcionament del dispositiu
The MikroTik LHG 5 runs on MikroTik's RouterOS operating system. Initial configuration is typically done via a web navegador (WebFig) o una utilitat dedicada (WinBox).
5.1 Configuració inicial
- After powering on, connect your computer directly to the LAN port of the PoE injector.
- Obre a web browser and navigate to the default IP address of the device (commonly 192.168.88.1, refer to MikroTik documentation for specifics).
- Log in using the default credentials (usually admin with no password).
- Follow the on-screen prompts or refer to the RouterOS documentation for detailed configuration steps, including setting up wireless modes (Access Point, Station), IP addresses, and security settings.
5.2 Point-to-Point (PtP) Links
For PtP links, two LHG 5 devices are typically used, one configured as an Access Point (AP) and the other as a Station (Client). Ensure clear line-of-sight between the two devices for optimal performance.
5.3 CPE Usage
When used as CPE, the LHG 5 acts as a client device connecting to a central Access Point. Configure it in Station mode and scan for available networks.
6. Manteniment
- Neteja: Periodically inspect the grid antenna for dirt, debris, or ice accumulation. Gently clean with a soft cloth and mild detergent if necessary. Do not use abrasive cleaners.
- Actualitzacions de firmware: Revisa regularment el MikroTik website for firmware updates for RouterOS. Keeping the firmware updated ensures optimal performance, security, and access to new features.
- Inspecció física: Annually inspect mounting hardware for corrosion or loosening. Ensure all cables are securely connected and free from damage.
7. Solució De Problemes
7.1 El dispositiu no s'encén
- Verify the PoE injector is properly connected to a working power outlet.
- Check the Ethernet cable between the PoE injector and the LHG 5 for damage or improper connection.
- Ensure the PoE injector is compatible with Passive PoE and provides the correct voltage.
7.2 Sense connectivitat de xarxa
- Confirm the Ethernet cable from the PoE injector's LAN port to your network is functional.
- Check the device's IP configuration. Ensure your computer is on the same subnet for initial access.
- Verify wireless settings (SSID, security, frequency) are correctly configured for your network.
- Ensure clear line-of-sight and proper antenna alignment for wireless links.
7.3 Poor Wireless Performance
- Check antenna alignment. Even slight misalignment can significantly reduce signal strength.
- Ensure there are no obstructions (trees, buildings) in the line-of-sight.
- Scan for interference from other 5GHz devices in the area and adjust channels if necessary.
- Verify RouterOS settings for transmit power and data rates.
8. Especificacions
| Característica | Detall |
|---|---|
| Model de producte | RBLHG-5ND |
| Estàndard sense fils | 5GHz 802.11 a/n |
| Guany de l'antena | 24.5 dBi (Dual Polarization) |
| Ports Ethernet | 1 x 10/100 Mbps |
| Entrada de PoE | PoE passiu |
| Freqüència nominal de la CPU | 600 MHz |
| Mida de la memòria RAM | 64 MB |
| Mida d'emmagatzematge | 16 MB |
| Max Wireless Data Rate | 300 Mbit/s |
| Dimensions | 15.39 x 8.74 x 15.39 polzades |
| Pes | 4 lliures |
| Fabricant | Microtik |
9. Garantia i Suport
Per obtenir informació detallada sobre la garantia, consulteu la pàgina oficial de MikroTik. website or the warranty card included with your product. Technical support and additional resources, including the full RouterOS documentation, can be found on the MikroTik support portal.
MikroTik oficial Weblloc: mikrotik.com





