Description
Product Specifications
Feature |
Description |
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Performance |
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Switching capacity and forwarding rate All switches are wire-speed and nonblocking |
Model |
Capacity in Millions of Packets per Second (mpps) (64-byte packets) |
Switching Capacity in Gigabits per Second (Gbps) |
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SG250-10P |
14.88 |
20.0 |
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SG250-26 |
38.69 |
52.0 |
Layer 2 Switching |
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Spanning Tree Protocol (STP) |
Standard 802.1d spanning tree support Fast convergence using 802.1w (Rapid Spanning Tree Protocol [RSTP]), enabled by default Multiple spanning tree instances using 802.1s (MSTP); 8 instances are supported |
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Port grouping/link aggregation |
Support for IEEE 802.3ad Link Aggregation Control Protocol (LACP) ● Up to 4 groups
● Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad LAG
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VLAN |
Support for up to 256 active VLANs simultaneously Port-based and 802.1Q tag-based VLANs Management VLAN |
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Voice VLAN |
Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS. Auto voice capabilities deliver networkwide zero-touch deployment of voice endpoints and call control devices. |
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IGMP (versions 1, 2, and 3) snooping |
Internet Group Management Protocol (IGMP) limits bandwidth-intensive multicast traffic to only the requesters; supports 4K multicast groups (source-specific multicasting is also supported). |
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HOL blocking |
Head-of-line (HOL) blocking. |
Product Specifications |
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802.3at PoE+ and 802.3af PoE delivered over any of the RJ-45 ports within the listed power budgets |
The following switches support 802.3at PoE+, 802.3af, and Cisco prestandard (legacy) PoE. Maximum power of 30.0W to any 10/100 or Gigabit Ethernet port, until the PoE budget for the switch is reached. The total power available for PoE per switch is as follows: |
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Model |
Power Dedicated to PoE |
Number of Ports That Support PoE |
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SG250-10P |
62W |
8 |
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SG250-26 |
195W |
24 |
PoE powered device (PD) and PoE pass-through |
Besides AC power, compact switch models can work as PoE powered device (PD) and be powered by PoE switches connected to the uplink ports. The switch can also pass through the power to downstream PoE end devices if required. Maximum of 60W can be drawn per uplink port if the peer PoE switch supports 60W PoE. When multiple uplink ports are connected to PoE switches, the power drawn from these ports is combined. When AC power is connected and functioning correctly, it is preferred over PoE power. The PoE power can function as a backup to the AC power source or be used as the sole power source for the switch. |
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Model |
Power Option |
Available PoE Power (W) |
Can Switch Be Powered with Uplinks? |
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SG250-10P |
1 PoE uplink 2 PoE uplink 1 PoE+ uplink 2 PoE+ uplink 1 60W PoE uplink 2 60W PoE uplink AC Power |
0W 0W 0W 22W 22W 50W 62W |
Yes Yes Yes Yes Yes Yes Yes |
Ports |
Model Name |
Total System Ports |
RJ-45 Ports |
Combo Ports (RJ-45 + SFP) |
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SG250-10P |
10 Gigabit Ethernet |
8 Gigabit Ethernet |
2 Gigabit Ethernet combo |
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SG250-26 |
26 Gigabit Ethernet |
24 Gigabit Ethernet |
2 Gigabit Ethernet combo |
USB slot |
USB Type-A slot on the front panel of the switch for easy file and image management |
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Buttons |
Reset button |
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Cabling type |
Unshielded twisted pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX; UTP Category 5e or better for 1000BASE-T |
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LEDs |
System, Link/Act, PoE, Speed |
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Flash |
256 MB |
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CPU |
800 MHz ARM |
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CPU memory |
512 MB |
Environmental | ||
Unit dimensions (W x H x D) | Model Name | Unit Dimensions |
SG250-10P | 280 x 44 x 170 mm (11.0 x 1.45 x 6.69 in) | |
SG250-26 | 440 x 44 x 202 mm (17.3 x 1.45 x 7.95 in) | |
Unit weight | Model Name | Unit Weight |
SG250-10P | 1.2 kg (2.65 lb) | |
SG250-26 | 2.72 kg (6.0 lb) | |
Power | 100–240V 50–60 Hz, internal, universal – SG250-26
100–240V 50–60 Hz, external – SG250-10P |
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Certification | UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A | |
Operating temperature | SG250-10P and SG250-26 – 32° to 122°F (0° to 50°C) | |
Storage temperature | -4° to 158°F (-20° to 70°C) | |
Operating humidity | 10% to 90%, relative, noncondensing | |
Storage humidity | 10% to 90%, relative, noncondensing | |
Warranty | Limited lifetime |
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