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MS225 Series Installation Guide
Model number Description
MS225-24 Stackable Layer-2 24-port gigabit Ethernet switch with 4 SFP+ interfaces
MS225-24P Stackable Layer-2 24-port gigabit Ethernet 370W PoE switch with 4 SFP+ interfaces
MS225-48 Stackable Layer-2 48-port gigabit Ethernet switch with 4 SFP+ interfaces
MS225-48LP Stackable Layer-2 48-port gigabit Ethernet 370W PoE switch with 4 SFP+ interfaces
MS225-48FP Stackable Layer-2 48-port gigabit Ethernet 740W PoE switch with 4 SFP+ interfaces
Package contents
In addition to the MS switch, the following are provided:
Rack Mount Kit includes:
• 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
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Note: MS225 does not include stacking cables. Stacking cables sold separately.
MS225-24 Series front panel
MS225-48 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.
Item Function LED Status Meaning
1 Power 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
Off Switch does not have power
2 Restore N/A
Restore button to clear switch IP and local configuration
settings
3 Switch Ports Off No link is detected on this port
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Solid orange 10/100 Mbps (1 Gbps on SFP+)
Solid green 1 Gbps (10 Gbps on SFP+)
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.
MS225 Series back panel
Item Function LED Status Meaning
Connected, used for easy
1 Management Interface Green
2 Stack Ports Green
Off
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22-Pin Redundant Power
Supply Connector
N/A
access to the local status
page
QSFP stacking cable is
connected
No link is detected on this
port
RPS2300 can be
connected to provide
redundant power in case
of a failover
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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.
RPS2300 Redundant Power Supply (Optional)
The MS225 series supports connecting the Cisco RPS2300 for optional power redundancy. MS225 series models
support failover and reversion to main power once it has been restored. The following Cisco part numbers are
supported:
Part number Description
PWR-RPS2300 RPS Chassis
C3K-PWR-750WAC 750W RPS Power supply (see recommendations)
C3K-PWR-1150WAC 1150W RPS Power supply (see recommendations)
CAB-RPS2300-E= RPS 22-pin cable
Bringing your Stack Online
The MS210 and MS225 series switches additionally support cross-model stacking, meaning an MS210 can be
stacked with an MS225 and vice-versa.
MS225 switches can be connected in a physical stack using dedicated stacking ports and cables. Configuration steps
and additional information about stacking can be found here.
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
MS225 48 port models are designed for an optional MA-MNT-MID-1 mid-mount bracket when using 2-post racks.
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