Mikrotik CRS125-24G-1S series cloud router switch is available in Mikrotik CRS125-24G-1S-IN and Mikrotik CRS125-24G-1S-RM two models. It combines the best features of a fully functional router and a layer 3 switch, is powered by the familiar RouterOS. As we know, these two models switch both have one SFP port. Then, what SFP module can you choose for your switch? This blog will give some choices.
Overview for CRS125-24G-1S-IN and CRS125-24G-1S-RM Switch
As show in the figure below, both Mikrotik CRS125-24G-1S-IN and Mikrotik CRS125-24G-1S-RM switches have 24 RJ45 ports and 1 SFP port. One is a desktop type, and the other is a 1U rack mount type. You can according to your specific needs to choose the right one.
Detailed specifications for CRS125-24G-1S and CRS125-24G-1S-RM are listed in the following table:
|CPU||Qualcomm Atheros AR9344 600 MHz|
|Ethernet||24x 10/100/1000 Mbit/s Gigabit Ethernet with Auto-MDI/X|
|Storage||128MB Onboard NAND with multiple OS partition support|
|Serial port||One RJ45 serial port|
|Extras||Reset switch; beeper; voltage and temperature monitoring, touchscreen LCD|
|Power options||8-28V, 24V 0.8A PSU included|
|Temperature||-35C to +65C tested|
|OS||MikroTik RouterOS v6, Level 5 license|
|Included||CRS switch, power adapter, and USB OTG cable (for 4G dongle or USB drive)|
User Guide for CRS125-24G-1S-IN and CRS125-24G-1S-RM Switch
The CRS125-24G-1S and CRS125-24G-1S-RM are pre-installed with RouterOS and are ready to use. Switch is compatible with RouterOS v6 and newer, if your switch comes pre-installed with an earlier version, please upgrade before using it. For CRS125-24G-1S and CRS125-24G-1S-RM: All the ports are switched. Both models can be accessed though the IP 192.168.88.1, username is admin and there is no password. Please connect with your web browser to this IP address to configure it.
Compatible SFP Modules for CRS125-24G-1S-IN & CRS125-24G-1S-RM Switch
According to Mikrotik cloud router switch guide, CRS125-24G-1S-IN and CRS125-24G-1S-RM switches are compatible with 1.25G SFP modules. SFP+ port supports only modules up to 10KM LR (long reach). FS.COM provides a full range of compatible 1.25G SFP modules at high quality and low price, which can work well in Mikrotik switches. 1000BASE-SX SFP modules are only sold at US$ 6.00. Part of the products from FS that are compatible with this Mikrotik CRS125-24G-1S-IN and CRS125-24G-1S-RM switches are listed below for your reference.
|SFP-GB-GE-T||Generic Compatible 1000BASE-T SFP Copper RJ-45 100m Transceiver|
|SFP-GB-GE-T||Generic Compatible 10/100/1000BASE-T SFP Copper RJ-45 100m Transceiver|
|SFP1G-SX-85||Generic Compatible 1000BASE-SX SFP 850nm 550m DOM Transceiver|
|SFP1G-SX-31||Generic Compatible 1000BASE-SX SFP 1310nm 2km DOM Transceiver|
|SFP-LX||Generic Compatible 1000BASE-LX/LH SFP 1310nm 10km DOM Transceiver|
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