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MS125 Series Installation Guide


  MS125-24 MS125-24P MS125-48 MS125-48LP MS125-48FP
1Gbe RJ45 24 24 48 48 48
10Gbe SFP+ 4 4 4 4 4
Dedicated Mgmt Interface 1 1 1 1 1
PoE Capable No Yes, 370W No Yes, 370W Yes, 740W
Power Supply Built-in Built-in Built-in Built-in Built-in
Fans No Built-in No Built-in Built-in


Package contents

MS125 package contents.png


In addition to the MS switch, the following are provided:

  • US 12-24 mounting screws and cage nuts, 5 of each
  • INTL M5 mounting screws and cage nuts, 5 of each
  • INTL M6 mounting screws and cage nuts, 5 of each
  • Mounting washers

Installation Instructions

Note: Each MS125 comes with an instruction pamphlet within the box. This pamphlet contains detailed step by step guides and images to assist in the physical install of the switch.


1. Install the mounting cage nuts in the rack being used for the switch.




2. Attach the switch face plate to the cage nuts on the rack.




3. Connect power to the power supply unit.



4. (Optional) Install additional SFP+ units as needed, depending on the compatibility of your model.


MS125-24 Series front panel


MS125-24P Series front panel


MS125-48 Series front panel


MS125-48LP/FP Series front panel


Ports and Status Indicators 

The MS uses LEDs to inform the user of the device's status. When the device powers on, all the Internet LEDs flash twice. Additional functions are described below, from left to right.



LED Status




Solid orange

Switch is unable to connect to the Meraki cloud


Flashing white

Firmware upgrade in process


Solid white

Switch is fully operational and connected to the Meraki cloud



Switch does not have power

2 Restore N/A Restore button to clear switch IP and local configuration settings


Switch Ports


No link is detected on this port


Flashing orange (RJ45 ports only)

Activity indicator

    Solid green 1 Gbps link detected

In addition, there is a RESTORE button available on the front panel.

Insert a paperclip if a restore is required.

  • A brief, momentary press: To delete a downloaded configuration and reboot.

  • Press and hold for more than 10 sec: To force the unit into a full factory restore.


MS125 Series back panel






LED Status



Management Interface


Connected, used for easy access to the local status page

Power input

Power cords may be ordered separately.

Equipment is to be used only in a restricted access location and installed/operated only by trained service personnel.


Mounting hardware  

The mounting hardware includes a rack mount kit for standard 1U racks. When installing the device, make sure that there is sufficient space between the rear of the rack and other obstacles to ensure adequate airflow.


Optional Mid-Mount bracket 

MS125 48 port models are designed for an optional MA-MNT-MID-1 mid-mount bracket when using 2-post racks.  

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