دي لينك DGS-1250-28XMP محول جيجابت ذكي مُدار بـ 28 منفذًا مع وصلات 10 جيجابت وطاقة عبر إيثرنت (PoE) باللون الأسود

Power & Value
The D-Link DGS-1250 Series Smart Managed Switches deliver real value as an Enterprise Access and Small-to-Medium Business (SMB) Access/Aggregation solution. They provide a range of physical interfaces (including a Console Port w/full CLI), multiple management interfaces, 11 Web languages, QoS enablement, and Advanced Layer-2 w/Lite Layer-3 features.

The DGS-1250 Series switches support 24 or 48 x 10/100/1000BASE-T ports, with each switch also supporting an additional 4 x 10G SFP+ ports for optical connections using multimode or single-mode SFP transceivers “ enabling real network horsepower at a value price.

Easy Maintenance, Less Downtime
The DGS-1250 Series supports Dual Image and Dual Configuration functionality, as well as a Console Port, all of which make it easier to configure, troubleshoot, and make other changes without interfering with network operation, while full Command Line Interface (CLI) functionality enables remote configuration, without the need for the Internet. And if a network issue ever does occur, the supported Spanning Tree Protocols (STP/RSTP/MSTP) help keep things running without interruptions or downtime.

Automatic Configuration
The DGS-1250 Series supports Auto Voice VLAN and Surveillance Mode, which allow Voice and Video traffic to be automatically identified and handled differently from regular network traffic. Auto Voice VLAN detects Voice over IP (VoIP) traffic and automatically segments it from the rest of the network, increasing security and allowing Quality of Service (QoS) to be applied.

High PoE Budget (370W)
The DGS-1250 series offers Power-over-Ethernet (PoE), which simplifies deployment with IP cameras, VoIP phones, Wireless Access Points, and other powered devices. Using the switch™s management interface, an administrator can control various PoE functions, such as remotely rebooting Cameras or Access Points, from anywhere on the network, including over the Internet. All PoE models support the IEEE 802.3af and 802.3at standards, and each PoE power budget varies per model.

Extensive Management and Advanced Features
The DGS-1250 Series comes with IGMP snooping, Port Mirroring, Spanning Tree Protocol (STP), and Link Aggregation Control Protocol (LACP). The IEEE 802.3x Flow Control function allows servers to directly connect to the switch for fast, reliable data transfers. The series also supports advanced features such as Static Routing, which allows for communication between different user groups in different VLAN segments in a network.

Management Versatility
The DGS-1250 Series comes with the D-Link Network Assistant (DNA) utility so admins can remotely control their network to the port level. DNA allows customers to easily discover multiple D-Link Smart Managed Switches within the same L2 network segment and display them onscreen for instant access.

Management features
Multicast support	Yes
ARP inspection	Yes
Switch type	Managed
Web-based management	Yes
System event log	Yes
Quality of Service (QoS) support	Yes
MIB support	RFC2893, RFC4213, RFC4291, RFC2464, RFC2462, RFC4862, RFC2461, RFC4861, RFC2573, RFC1321, RFC2284, RFC2865, RFC2716, RFC3580, RFC826, RFC2463, RFC4443, RFC792, RFC793, RFC768, RFC791, RFC2389, RFC4113, RFC4022, RFC2618, RFC2674, RFC1398, RFC1643, RFC1650, RFC2358, RFC2665, RFC2021, RFC271, RFC1757, RFC2819, RFC1442, RFC1901, RFC1902, RFC1903, RFC1904, RFC1905, RFC1906, RFC1907, RFC1908, RFC2578, RFC3418, RFC2573, RFC2575, RFC2576, RFC1212, RFC1213, RFC1215, RFC1493, RFC1157, RFC2620,
Switch layer	L3
Configuring Location Settings (CLI)	Yes
Ports & interfaces
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
SFP+ module slots quantity	4
Basic switching RJ-45 Ethernet ports quantity	24
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Console port	RJ-45
Network
IGMP snooping	Yes
Cable types supported	Cat5, Cat5e
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Networking standards	IEEE 802.3af, IEEE 802.3at
Full duplex	Yes
Head-of-line (HOL) blocking	Yes
VLAN support	Yes
Spanning tree protocol	Yes
Port mirroring	Yes
Number of VLANs	4094
Link aggregation	Yes
Flow control support	Yes
Broadcast storm control	Yes
Auto MDI/MDI-X	Yes
10G support	Yes
Virtual LAN features	Voice VLAN
Virtual LAN features
VLAN support	Yes
Number of VLANs	4094
Virtual LAN features	Voice VLAN
Data transmission
Number of VLANs	4094
Jumbo frames	12000
Number of static routes	124
Packet buffer memory	12 MB
MAC address table	16000 entries
Switching capacity	128 Gbit/s
Store-and-forward	Yes
Jumbo frames support	Yes
Static route	Yes
Forwarding rate	95.24 Mpps
Performance
Packet buffer memory	12 MB
Noise level	50.8 dB
Memory type	DDR3-SDRAM
Mean time between failures (MTBF)	463430.16 h
Internal memory	2048 MB
Flash memory	64 MB
Firmware upgradeable	Yes
Harmonized System (HS) code	85176990
Technical details
Product colour	Black
Noise level	50.8 dB
Mean time between failures (MTBF)	463430.16 h
Firmware upgradeable	Yes
Rack mounting	Yes
Shipping (inner) case width	47.8 cm
Shipping (inner) case net weight	19.3 kg
Shipping (inner) case length	58.5 cm
Shipping (inner) case height	42.8 cm
Products per shipping (inner) case	5 pc(s)
Products per pallet (sea)	80 pc(s)
Products per pallet (air)	80 pc(s)
Pallet gross width	120 cm
Pallet gross length	110 cm
Pallet height (sea)	184.7 cm
Pallet height (air)	184.7 cm
Pallet gross weight (sea)	426 kg
Pallet gross weight (air)	426 kg
Master (outer) cases per pallet (sea)	16 pc(s)
Master (outer) cases per pallet (air)	16 pc(s)
Shipping (inner) case gross weight	25.5 kg
Optical fiber
Fiber ethernet cabling technology	100BASE-FX, 1000BASE-LHX, 1000BASE-X, 1000BASE‘LX, 1000BASE‘SX, 1000BASE‘ZX
Security
Loop protection	Yes
IP-MAC-Port binding	Yes
Access Control List (ACL) rules	768
Security algorithms	EAP, LEAP, MD5, PEAP, SSH, SSL/TLS, TTLS
IGMP snooping	Yes
Access Control List (ACL)	Yes
Queue scheduling algorithms	Weighted Round Robin (WRR)
DHCP features	DHCP server, DHCP snooping
Multicast features
Multicast support	Yes
Certificates
Electromagnetic compatibility	CE A, VCCI A, FCC A, IC, BSMI
Certification	CB, UL, BSMI, CCC
Memory
Packet buffer memory	12 MB
Memory type	DDR3-SDRAM
Internal memory	2048 MB
Flash memory	64 MB
Design
Product colour	Black
LED indicators	Activity, Link, Power, Speed
Electromagnetic compatibility	CE A, VCCI A, FCC A, IC, BSMI
Certification	CB, UL, BSMI, CCC
Rack mounting	Yes
Indication
LED indicators	Activity, Link, Power, Speed
Power
Power consumption (max)	455.1 W
Power supply included	Yes
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power over Ethernet (PoE)
Power over Ethernet (PoE) power per port	15.4 W
Total Power over Ethernet (PoE) budget	370 W
Power over Ethernet (PoE) ports quantity	24
Power over Ethernet (PoE)	Yes
Operational conditions
Storage temperature (T-T)	-20 - 70 °C
Storage relative humidity (H-H)	0 - 95%
Operating temperature (T-T)	-5 - 50 °C
Operating relative humidity (H-H)	0 - 95%
Heat dissipation	1551.891 BTU/h
Weight & dimensions
Width	440 mm
Depth	250 mm
Height	44 mm
Weight	3.46 kg
Packaging data
Package width	393 mm
Package depth	563 mm
Package height	89 mm
Package weight	4.76 kg
Logistics data
Harmonized System (HS) code	85176990