MikroTik RBM33G User Manual
RouterBOARD M33G
First use
• Insert the miniPCIe and M.2 cards (not included) and secure them with the included screws. [Only one
802.11 wireless card can be used at once]. It is suggested to use the other slot for LTE modems. Please
see MiniPCIe slot usage paragraph.
• (Optional) Install the device in a case.
• Connect cables to wireless cards and Ethernet ports.
• Plug in power cable (directly or through the PoE injector) to turn on the device, please see powering
paragraph.
• The Initial connection has to be done via the Ethernet cable, using the MikroTik Winbox utility. Winbox
should be used to connect to the default IP address of 192.168.88.1 with the username admin and no
password.
• 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 (if applicable) and set up your password in the
screen that loads.
Assembly
M33G for professional use. Each of the devices comes in ESD protective packaging. When handling electrical
equipment please observe the following safety precautions:
• Use a wrist grounding strap when unpacking and working with electrical components to avoid electrical
discharge (ESD) damage.
• After unpacking please place the router on the anti-static mat.
• When mounting unit make sure there are no objects that can damage or touch the PCB plate.
• Note that ETH, USB and other ports are extending over the perimeter of PCB plate.
The device can be mounted in your desired location using the factory provided four holes in a PCB plate, located
on each side of the device.
Mounting
Mounting and configuration of this device should be performed by a qualified person.
The IP rating scale for this device is IPX0.
We recommend shielded Cat5/6 cables for our devices.
The installation infrastructure (towers and masts), as well as the router itself, must be properly grounded.
Powering
The device accepts power with the following modes:
• Passive 11-28 V DC PoE to J1 Ethernet port. The Higher voltage needed to compensate for power loss⎓
on long cables at least 18 V is suggested.
• Direct input to the power jack DC 11-28 V.⎓
Max total power consumption with all interfaces loaded is 24 W. Maximum power to each extension card is 3 A.
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.
See mikrotik.com/products for the latest version of this document. Document #50468 Modified on: 13.SEP.2019
Booting process
RouterOS is the operating system of all RouterBOARD routers. Please see documentation: http://mt.lv/help
This device is not preconfigured other than an IP address on the Ethernet port. Other configurations has to be
applied according to the documentation manual linked above.
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, and the device will start to look for Netinstall servers.
In case IP connection is not available, the Winbox utility can also be used to connect to the MAC address of the
device. More information in the documentation.
Extension slots and ports
• Three gigabit Ethernet ports (With Auto MDI/X so you can use either straight or cross-over cables for
connecting to other network devices). The J1 (first from the left) Ethernet port accepts 11-30 V DC
powering from a passive PoE injector.
• Two miniPCIe slots for either a 802.11 wireless card or a 3G/LTE modem. Mini SIM 2FF slots available for
miniPCIe 3G/LTE modems and have no functionality when a modem is not installed.
• One M.2 (M key) slot for PCI-e SSD disk or other devices. The mounting hole is for 2242 size cards, for
other sizes, an extender is suggested. Any speed M.2 cards will operate at 1x PCIe speed.
• One microSD slot for a storage card.
• One DB9 RS232 serial port for serial console access. Configured as 115200 bit/s, 8 data bits, 1 stop bit, no
parity.
USB jumper
Located right next to the USB 3.0 port. When loaded, the jumper enables the USB 3.0 port. Remove the jumper to
switch the USB 2.0 lines to the J10 (central) miniPCIe slot (USB 3.0 lines remain enabled to the USB port). This is
required if you need to use two cellular modems in the device. Normally you can use the LTE modem in the J8 (lefthand side) slot, and use a 802.11 wireless card in the J10 slot. In this case, you can leave the jumper on, as most
wireless cards operate on a PCI express. Removing the jumper enables the use of a secondary cellular modem in
the central J10 slot, but disables the USB 2.0 functionality of the USB port, while USB 3.0 can still be used on the
USB port. Refer to the diagram below:
See mikrotik.com/products for the latest version of this document. Document #50468 Modified on: 13.SEP.2019
Boot configuration jumpers
Default jumper configuration for MikroTik RouterOS boot:
MiniPCIe slot usage
Installing a miniPCIe module should be done by a qualified person, please follow safety precautions when handling
electrical equipment:
1. Use a wrist grounding strap when unpacking and working with electrical components to avoid electrical
discharge (ESD) damage.
2. Place PCB board on the anti-static mat.
3. Locate the miniPCIe slot on the PCB and remove two factory attached screws.
4. Attach a thick thermal pad to the card, and install the card into miniPCIe slot so that thermal pad is
between PCB and card.
5. Secure card in place using previously removed two screws.
6. Attach the grey uFL connector to the MAIN antenna connector of the modem, attach the black cable to the
secondary (or AUX) connector.
7. Attach a thinner thermal pad to the top of the card.
Slide in the SIM cards from your mobile operator into the SIM slots. The slot accepts miniSIM (2FF).
Buttons and jumpers
RouterBOOT reset button. This button has the following 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).
• 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.
Accessories
Package includes the following accessories that come with the device:
• K-25 set.
Specifications
For more information about this product, specification and pictures please visit our web page:
https://mikrotik.com/product/rbm33g
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.
See mikrotik.com/products for the latest version of this document. Document #50468 Modified on: 13.SEP.2019
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