Cloud Router Switch 24 Ethernet port series
The CRS is a highly configurable switch, powered by RouterOS. It has 24 Gigabit ports.
First use
The device can be accessed through the IP 192.168.88.1, the username is admin and there is no password.
Please connect with your web browser to this IP address to configure it. See this page for connection and
configuration guides: http://wiki.mikrotik.com/wiki/Category:Manual
The device comes preinstalled with RouterOS and is ready to use. The device is compatible with RouterOS v6 and
newer.
For the wireless model CRS125-24G-1S-2HnD-IN, ports are switched, wireless interface and switch are bridged,
and bridge contains a DHCP server. Eth1 and SFP1 have DHCP client configured. After connected choose your
country, to apply country regulation settings.
Powering
The device accepts direct-input power jack: 10-28 V (24 V0.8 A PSU included in the package).
The power consumption under maximum load can reach 19 W.
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.
Expansion slots and ports
• Twenty four (24) 10/100/1000 (Gigabit) Ethernet ports (Auto MDI/X)
• CRS125 has one SFP cage, compatible with 1.25G SFP modules.
• CRS125-24G-1S-2HnD-IN has built-in 802.11b/g/n 2GHz wireless access point.
Reset button
RouterBOOT reset button has the following functions. Press the button and apply the power, then:
• Release the button when a green LED starts flashing, to reset RouterOS configuration to defaults.
• Release the button when the LED turns solid green to clear all configuration and defaults.
• Release the button after LED is no longer lit (~20 seconds) to cause a device to look for Netinstall servers
(required for reinstalling RouterOS over the network).
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.
Safety Notice
Electric shock hazard. This equipment is to be serviced by trained personnel only. This is a class A
device, operating it near residential radio equipment could cause radio interference.
See mikrotik.com/products for the latest version of this document. Document #49144 Modified on: 02.MAY.2019
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