مقارنة نماذج منتجات SG250

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General

Device type

Switch, 1 G, 24 ports

Switch, 1 G, 48 ports

Switch, 1 G, 8 ports

Switch, 1 G, 10 ports

Switch, 1 G, 18 ports

Switch, 1 G, 26 ports

Switch, 1 G, 50 ports

Enclosure type

Rack-mountable, 1 RU

Compact, 1 unit

Rack-mountable, 1 RU

Ports

24 x 10/100/1000, 2 x 10 GE copper, 2 x 10 GE SFP+

48 x 10/100/1000, 2 x 10 GE copper, 2 x 10 GE SFP+

8 x 10/100/1000

8 x 10/100/1000, 2 x Gigabit SFP/RJ-45

16 x 10/100/1000, 2 x Gigabit SFP/RJ-45

24 x 10/100/1000, 2 x Gigabit SFP/RJ-45

48 x 10/100/1000, 2 x Gigabit SFP/RJ-45

Power over Ethernet (PoE)

PoE+ (24 ports, 195W)

PoE+ (48 ports, 382W)

PoE+ (8 ports, 45W)

PoE+ (8 ports, 62W)

PoE+ (24 ports, 100W)

PoE+ (24 ports, 195W)

PoE+ (48 ports, 192W)

PoE+ (48 ports, 375W)

Performance

128-Gbps switching capacity, 95.23-Mpps forwarding performance (64-byte packet size)

176-Gbps switching capacity, 130.94-Mpps forwarding performance (64-byte packet size)

16-Gbps switching capacity, 11.9-Mpps forwarding performance (64-byte packet size)

20-Gbps switching capacity, 14.88-Mpps forwarding performance (64-byte packet size)

36-Gbps switching capacity, 26.78-Mpps forwarding performance (64-byte packet size)

52-Gbps switching capacity, 38.69-Mpps forwarding performance (64-byte packet size)

100-Gbps switching capacity, 74.41-Mpps forwarding performance (64-byte packet size)

MAC address table size

8k entries

Capacity

256 active VLANs

Jumbo frame

Yes

Remote management protocol

SNMP, RMON, HTTP, HTTPS, TFTP, Telnet, SSH

Features

Layer 2 switching, Layer 3 switching, DHCP support, BOOTP support, VLAN support, IGMP snooping, Syslog support, port mirroring, DiffServ support, Weighted Round Robin (WRR) queuing, Broadcast Storm Control, IPv6 support, Multicast Storm Control, Unicast Storm Control, SNTP support, Spanning Tree Protocol (STP) support, Rapid Spanning Tree Protocol (RSTP), Multiple Spanning Tree (MSTP), Trivial File Transfer Protocol (TFTP) support, access control list (ACL) support, quality of service (QoS), jumbo frames support, MLD snooping, SNMP, RMON, SNTP, Cisco Discovery Protocol, Auto SmartPorts

Compliant standards

IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3af PoE, IEEE 802.3at PoE, IEEE 802.3az

RAM

512 MB

Flash memory

256 MB flash

Status indicators

System, link/speed per port

Expansion / Connectivity

Interfaces

24 x 10BASE-T/100BASE-TX/1000BASE-T, RJ-45, 2 x 10GBASE-T, 2 x SFP+

24 x 10BASE-T/100BASE-TX/1000BASE-T, RJ-45, PoE, 2 x 10GBASE-T, 2 x SFP+

48 x 10BASE-T/100BASE-TX/1000BASE-T, RJ-45, 2 x 10GBASE-T, 2 x SFP+

48 x 10BASE-T/100BASE-TX/1000BASE-T, RJ-45, PoE, 2 x 10GBASE-T, 2 x SFP+

8 x 10Base-T/100BASE-TX/1000BASE-T, RJ-45 (1 x PoE+ PD)

8 x 10BASE-T/100BASE-TX/1000BASE-T, RJ-45 (PoE+)

8 x 10BASE-T/100BASE-TX/1000BASE-T, RJ-45 (PoE+), 2 x Gigabit SFP/RJ-45 (60W PoE PD)

16 x 10BASE-T/100BASE-TX/1000BASE-T, RJ-45, 2 x Gigabit SFP/RJ-45

24 x 10BASE-T/100BASE-TX/1000BASE-T, RJ-45, 2 x Gigabit SFP/RJ-45

24 x 10BASE-T/100BASE-TX/1000BASE-T, RJ-45 (PoE+), 2 x Gigabit SFP/RJ-45

48 x 10BASE-T/100BASE-TX/1000BASE-T, RJ-45, 2 x Gigabit SFP/RJ-45

48 x 10BASE-T/100BASE-TX/1000BASE-T, RJ-45 (PoE+), 2 x Gigabit SFP/RJ-45

Power

Power device

Power supply, internal

Power supply, external

Power supply, internal

Voltage required

AC 120/230V (50/60 Hz)

Miscellaneous

Width

17.3 in (440 mm)

6.3 in (160 mm)

11.0 in (280 mm)

17.3 in (440 mm)

Depth

10.12 in (257 mm)

13.78 in (350 mm)

5.04 in (128 mm)

6.69 in (170 mm)

7.95 in (202 mm)

10.12 in (257 mm)

13.78 in (350 mm)

Height

1.45 in (44 mm)

1.18 in (30 mm)

1.45 in (44 mm)

Weight

5.86 lb (2.66 kg)

8.51 lb (3.86 kg)

6.61 lb (3 kg)

10.67 lb (4.84 kg)

1.19 lb (0.54 kg)

1.23 lb (0.56 kg)

2.65 lb (1.2 kg)

4.59 lb (2.08 kg)

6.0 lb (2.72 kg)

7.43 lb (3.37 kg)

8.40 lb (3.81 kg)

6.48 lb (2.94 kg)

10.58 lb (4.8 kg)

10.63 lb (4.82 kg)

Mounting kit

Included

MTBF

130,255 hours

62,949 hours

68,585 hours

53,722 hours

1,305,509 hours

506,682 hours

205,647 hours

1,425,277 hours

343,593 hours

333,792 hours

430,341 hours

134,933 hours

62,607 hours

53,839 hours

Compliant standards

UL 60950, FCC Part 15 A, CSA 22.2

Manufacturer Warranty

Service and support

Limited lifetime warranty

Service and support details

Limited warranty: lifetime; technical support (Web): 1 year; technical support (phone consulting): 1 year

Environmental Parameters

Minimum operating temperature

32°F (0°C)

Maximum operating temperature

122°F (50°C)

Humidity range operating

10-90% (noncondensing)

Minimum storage temperature

-4°F (-20°C)

Maximum storage temperature

158°F (70°C)

Humidity range storage

10-90% (noncondensing)