MikroTik RB4011iGS+RM User Manual
RB4011 series
The device is already configured with basic settings, you can simply plug in your ISP cable and start using the
Internet. We recommend you to set up a password to secure your device.
Powering
The power consumption under maximum load can reach 55 W. The device accepts powering from the power jack
or from the first Ethernet port:
• Direct-input power jack (5.5 mm outside and 2 mm inside, female, pin positive plug) accepts 12-57 V DC.
• First Ethernet port accepts Power over Ethernet 18-57 V DC.
Setup
1. Connect your Internet cable to the first port, and if you have wired devices, connect them to the other ports.
2. Set your computer IP configuration to automatic (DHCP).
3. From your PC or smartphone, connect to the wireless network name which starts with “MikroTik”.
4. 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. Set up your
password in the screen that loads. Please also specify your country, to make sure local wireless
regulations are observed.
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 to
start 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 boot the device from network, see section Buttons and jumpers.
Extension slots and ports
The Ethernet ports are connected in two groups of five, each group is connected through a switch chip.
The ports can be configured individually and support automatic cross/straight cable correction (Auto
MDI/X), so you can use either straight or cross-over cables for connecting to other network devices.
SFP+ port accepts SFP and SFP+ modules.
Integrated wireless module which supports AP/CPE/P2P/repeater modes.
RJ45 console port for serial console access, set by default to 115200 bit/s, 8 data bits, 1 stop bit, no parity.
See mikrotik.com for more information. Document #39728, modified on 09/07/18
Buttons and jumpers
The reset 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 CAP mode. The device will now
look for a CAPsMAN server (total 10 seconds).
Or Keep holding the button for 5 more seconds until until LED turns off, then release it to make the
RouterBOARD look for Netinstall servers connected to it’s first Ethernet port (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.
Operating system support
The device supports RouterOS software with the version number at or above what is indicated in the RouterOS
menu /system resource. Other operating systems have not been tested.
Mounting
The device can be used by putting it on any flat surface, or by mounting it on two screws, using the mounting holes
on the enclosure bottom. Mounting holes are located 10 cm apart, and support screw heads with less than 8 mm
diameter.
The rackmount model includes two identical rack ears that can be mounted on either side. The case bottom
includes a single mounting screw for each ear.
The enclosure includes a grounding screw hole with an M4 thread (screw not included). In locations with risk of
ESD discharge, you are encouraged to connect the grounding screw to verified grounding infrastructure.
See mikrotik.com for more information. Document #39728, modified on 09/07/18
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