MikroTik RBLHG-2ND operation manual
LHG series
The LHG is an outdoor wireless router with a built-in directional antenna. It can be used as a CPE or for point to
point links (use RouterOS wireless mode “bridge” to work as a single-client AP for point to point scenarios).
Assembly and mounting
1. Attach the two legs to the LHG case.
2. Snap the assembled LHG unit to the grid in the appropriate locations.
3. Fix the legs in place with two self thread screws (Use Phillips screwdriver
PH2).
4. The device designed to be mounted on the pole using zip ties or steel clamp
as shown on the picture. Clamping diameter with provided steel clamps is 35
– 70 mm.
5. Optional: if required, before mounting the unit, you can insert the included 5degree adjustment adapter into the top or bottom slot where the mounting ring
is inserted. This will create an additional upward or downward angle when the
unit is tightened to a vertical pole.
The device includes a grounding connection (marked )⏚ which you should connect to the grounding installation of
the tower or building where the device will be used. This is to substantially reduce the risk of ESD and lightning
damage.
Warning! This equipment should be installed and operated with a minimum distance of 40 cm between the device
and your body. Operation of this equipment in the residential environment could cause radio interference.
Connecting
• Open the Ethernet door to connect an Ethernet cable to the Ethernet port, connect the other end of the
Ethernet cable to the included PoE injector.
• Plug the PoE injector into your network switch or ISP internet outlet.
• Plug the included power supply into the PoE injector to start up the device.
• Set LAN computer IP configuration to automatic (DHCP).
• Once connected to the wireless network, open http://192.168.88.1 in your web browser to start
configuration, since there is no password by default, you will be logged in automatically.
See mikrotik.com/products for the latest version of this document. Document #49249 Modified on: 02.JUL.2019
• We recommend clicking the “Check for updates” button and updating your RouterOS software to the latest
version to ensure the best performance and stability.
• Choose your country, to apply country regulation settings and set up your password in the screen that
loads.
The device is preconfigured as a wireless client and all you need to do is select the AP to connect to and set a
device password. You can do this in the QuickSet tab that is opened by default.
In case the IP connection is not available, Winbox can be used to connect to the MAC address of the device. In
case you wish to boot the device from the network, for example, to use MikroTik Netinstall, hold the RESET button
of the device when starting it, until the LED light turns off, then the device will start to look for Netinstall servers.
More information about using RouterOS and connecting to this device in our documentation: http://mt.lv/help
Powering
The device accepts powering only from Passive PoE injectors.
Connecting to a POE Adapter:
1. Connect the Ethernet cable from the device to the POE port of the POE adapter.
2. Connect an Ethernet cable from your LAN to the LAN port of the POE adapter, please mind arrows for data
and power flow.
3. Connect the power cord to the adapter, and then plug the power cord into a power outlet.
Configuration
Once logged in, we recommend clicking the “Check for updates” button in the QuickSet menu, as updating your
RouterOS software to the latest version ensures the best performance and stability. For wireless models, please
make sure you have selected the country where the device will be used, to conform with local regulations.
RouterOS includes many configuration options in addition to what is described in this document. We suggest
starting here to get yourself accustomed to the possibilities: http://mt.lv/help. In case IP connection is not available,
the Winbox tool (http://mt.lv/winbox) can be used to connect to the MAC address of the device from the LAN side
(all access is blocked from the Internet port by default).
For recovery purposes, it is possible to boot the device from the network, see a section Reset button.
Extension slots and ports
• One Ethernet port, supporting automatic cross/straight cable correction (Auto MDI/X), so you can use
either straight or cross-over cables for connecting to other network devices.
• One Integrated 2x2 MIMO wireless device with a built-in grid antenna.
LHG 2 Dual chain 18 dBi, 2.4GHz, 802.11b/g/n. Maximum power consumption 5 W.
LHG 5 Dual chain 24.5 dBi, 5GHz, 802.11 a/n. Maximum power consumption 6 W.
LHG HP5 Dual chain 24dBi, 5GHz, 802.11 a/n. Maximum power consumption 7 W.
LHG 5 ac Dual chain 24.5dBi, 5GHz, 802.11 a/n/ac. Maximum power consumption 8 W.
Reset button
The reset button has three functions:
• Hold this button during boot time until LED light starts flashing, release the button to reset RouterOS
configuration (total 5 seconds).
• Keep holding for 5 more seconds, LED turns solid, release now to turn on CAPs mode (total 10 seconds).
• Or keep holding the button for 5 more seconds until LED turns off, then release it to make the
RouterBOARD look for Netinstall servers (total 15 seconds).
Regardless of the above option used, the system will load the backup RouterBOOT loader if the button is pressed
before power is applied to the device. Useful for RouterBOOT debugging and recovery.
See mikrotik.com/products for the latest version of this document. Document #49249 Modified on: 02.JUL.2019
Accessories
Package includes the following accessories that come with the device:
• Mounting set for LHG-5.
• POE Injector/Gigabit POE injector(For LHGG-5acD).
• LHG-5G-390 mm Dish 3,0x2.5x0,5 mm.
• DC EU/US Switching Power Supply 24 V, 0.38 A, 9 W, Level VI, cable:1.5 m).⎓
• Hose Clamp SUS304 (philips type ; clamping diameter range 35-70 mm).
Specifications
For more information about LHG products, specifications and pictures please visit our web page:
https://mikrotik.com/product/lhg_2
https://mikrotik.com/product/RBLHG-5nD
https://mikrotik.com/product/RBLHG-5HPnD
https://mikrotik.com/product/lhg_5_ac
Operating system support
The device supports RouterOS software version 6. The specific factory installed version number is indicated in the
RouterOS menu /system resource. Other operating systems have not been tested.
MikroTik mobile app
Use the MikroTik smartphone app to configure your router in the field, or to apply the most basic initial settings for
your MikroTik home access point.
See mikrotik.com/products for the latest version of this document. Document #49249 Modified on: 02.JUL.2019
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