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MikroTik CRS112-8G-4S-IN User Manual

MikroTik CRS112-8G-4S-IN
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In case the IP connection is not available, the Winbox tool (https://mt.lv/winbox) can be used to
connect to the MAC address of the device.
The device is equipped with an RJ45 serial port, set by default to 115200 bit/s, 8 data bits, 1 stop bit,
and no parity. Standard RJ45 to COM cable can be used, pinout can be found in the documentation (see
link above).
For recovery purposes, it is possible to boot the device for reinstallation, see the next section.
Buttons and Jumpers
The reset button has these functions:
Hold this button during boot time until the user LED light starts flashing, and release the button to reset
the RouterOS configuration.
Keep holding the button for 5 more seconds or until the user LED turns off, then release it to make the
RouterBOARD look for Netinstall servers. The first Ethernet port is used for the Netinstall process.
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. Release the button before LED begins to flash, to only
load the backup RouterBOOT without reset. This is useful for RouterBOOT debugging and recovery.
LED indicators
The power LED is lit when the router is powered by the DC jack or PoE.
The user LED can be configured from RouterOS.
The port LEDs indicate the individual Ethernet and SFP port activity.
Mounting
The device is designed to use indoors and it can be mounted in a rackmount enclosure using provided
rack mounts, or it can be placed on the desktop. Please use a Phillips screwdriver to attach rackmount
ears on both sides of the device if the designated use is for rackmount enclosure:

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MikroTik CRS112-8G-4S-IN Specifications

General IconGeneral
Switch typeManaged
Switch layerL3
Console portRJ-45
Power connectorDC-in jack
SFP module slots quantity4
Basic switching RJ-45 Ethernet ports typeGigabit Ethernet (10/100/1000)
Basic switching RJ-45 Ethernet ports quantity8
Product colorWhite
Flash memory16 MB
Internal memory128 MB
Processor modelQualcomm Atheros QCA8511
Built-in processorYes
Processor frequency400 MHz
Output voltage57 V
Power consumption (max)13.5 W
Operating temperature (T-T)-30 - 70 °C
Weight and Dimensions IconWeight and Dimensions
Depth143 mm
Width200 mm
Height44 mm

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