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Mode button
The action of the mode buttons can be configured from RouterOS software to execute any user-supplied RouterOS script. You can also disable this button.
The mode button can be configured in RouterOS menu /system routerboard mode-button
Connecting to a POE Adapter:
Connect the Ethernet cable from the device to the POE port of the POE adapter.
Connect an Ethernet cable from your LAN to the LAN port of the POE adapter, please mind arrows for data and power flow.
Connect the power cord to the adapter, and then plug the power cord into a power outlet.
Accessories
The package includes the following accessories that come with the device:
DC  EU/US Switching Power Supply 24 V, 0.38 A, 9 W, Level VI, cable:1.5 m.
Specifications
For more information about this product, specification and pictures please visit our web page: https://mikrotik.com/product/RB750Gr3
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.
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These 
limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause 
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment 
does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to 
try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this
equipment.
This  device  complies  with  Part  15  of  the  FCC  Rules.  Operation  is  subject  to  the  following  two  conditions:  (1)  This  device  may  not  cause  harmful
interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Note: This unit was tested with shielded cables on the peripheral devices. Shielded cables must be used with the unit to ensure compliance.
To avoid pollution of the environment, please separate the device from household waste and dispose of it in a safe manner, such as in 
designated waste disposal sites. Familiarize yourself with the procedures for the proper transportation of the equipment to the designated 
disposal sites in your area.