Front Panel
SKU Name
SG250X-24P
SG250X-48P
Caution
Consider the following when connecting a PoE switch. The PoE switches are PSE (Power Sourcing Equipment)
that are capable of supplying DC power to attaching powered devices (PD). These devices include VoIP
phones, IP cameras, and wireless access points. The PoE switches can detect and supply power to pre-standard
legacy PoE PD. Due to the PoE legacy support, it is possible that a PoE switch acting as a PSE may mistakenly
detect and supply power to an attaching PSE, including other PoE switches, as a legacy PD. Even though PoE
switches are PSE, and as such should be powered by AC, they could be powered up as a legacy PD by another
PSE due to false detection. When this happens, the PoE switch may not operate properly and may not be able
to properly supply power to its attaching PDs.
To prevent false detection, you should disable PoE on the ports on the PoE switches that are used to connect
to PSEs. You should also first power up a PSE device before connecting it to a PoE switch. When a device
is being falsely detected as a PD, you should disconnect the device from the PoE port and power recycle the
device with AC power before reconnecting its PoE ports.
Front Panel
The following components are found on the front panel of the device:
• USB Port—The USB port connects the switch to a USB device so that you can save and restore the
• RJ-45 Ethernet Ports—The RJ-45 Ethernet ports connect network devices, such as computers, printers,
• Multigigabit Ethernet Ports—Highlighted in blue, these ports support speeds of 100 Mbps, 1 Gbps, 2.5
• 60-Watt PoE Ports—Highlighted in yellow. The 60-Watt PoE ports double the PoE power to 60W. This
Get To Know Your Switch
4
Description
SG250X-24P
24-Port Gigabit
PoE with 4-Port
10-Gigabit
Smart Switch
SG250X-48P
48-Port Gigabit
PoE with 4-Port
10-Gigabit
Smart Switch
configuration files, firmware images, and SYSLOG files through the connected USB device. The USB
port supports the FAT32 file system.
and access points, to the switch.
Gbps, and 5 Gbps on Cat 5e cables. Some uplink ports also support MultiGiga speed. In this case, port
speed can reach 10Gbps. Much of the cabling deployed worldwide is limited to 1 Gbps at 100 meters.
Cisco Multigigabit Ethernet enables speeds up to 2.5 or 5 Gbps on the same infrastructure without
replacing a cable.
is not found on the 250 devices nor on the SF350-48P device.
PoE PD Chipset
PoE PSE Chipset
Type
Type
NA
3*69208M
(0x4B42)
NA
6*69208M
(0x4B42)
Get To Know Your Switch
PoE PD
PoE PSE
AF/AT/60W
AF/AT/60W
NA
AF/AT
NA
AF/AT
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