DES–1252EOL EOS

Hallatav kommutaator, 48 x 10/100Base-TX porti + 2 x 1000Base-T porti + 2 x 1000Base-T/Mini GBIC (SFP) kombo porti
Kust osta

Kirjeldus

D-Link's next generation Web Smart Ethernet switch series blends plug-and-play simplicity with exceptional value and reliability for small and medium-sized business (SMB) networking. Each switch is housed in a new style rack-mount metal case with easy-to-view front-panel diagnostic LEDs, and provides advance features including 4 Gigabit uplinks, combo 1000BASE-T/SFP, network security, traffic segmentation, QoS and versatile management.

Choices of 24 and 48 ports. Two port densities are available for selection: 24 Ethernet ports and 48 Ethernet ports. Supporting auto-detection of MDI/MDIX, these switches bring inexpensive and easy Ethernet connection to the desktops. Each switch provides 4 Gigabit uplinks connection to a Gigabit backbone or servers.

Power Over Ethernet Option. Switch model DES-1228P provides built-in 802.3af Power over Ethernet for network sites needing to run power over the network cables. Each the 24 10/100BASE-TX Ethernet ports of this switch provides up to 15.4 watts power for connected wireless access points, IP phones and other PoE-supported devices, allowing them to be deployed at difficult places such as on
high walls and ceilings, where AC power outlets are not readily available.

Extensive Layer 2 Features. Implemented as complete L2 devices, these switches include functions such as IGMP snooping, port mirroring, Spanning Tree and port trunks to enhance performance and network resiliency.

Traffic Segmentation and QoS. The switches support 802.1Q VLAN Tagging for traffic segmentation by groups to enhance network security and performance. They also support 802.1p Priority Queues, enabling users to run bandwidth-sensitive applications such as streaming multimedia and VoIP on the network. These functions allow the switches to work seamlessly with managed VLAN and 802.1p traffic on the network.

Network Security. The switches provide MAC address filters screen access to the network. They support 802.1x port-based authentication, allowing the network to be configured with external RADIUS servers. Additional features like D-Link Safeguard Engine protect the switches against traffic flooding caused by virus/worm outbreaks.

Versatile Management. Switch configuration and management is through the SmartConsole Utility or a web-based GUI. SmartConsole is an easy way to access the switch from a local PC; users do not have to type in any IP address or subnet, and all switches connected on the network are displayed on the screen for instant access. The web-based GUI allows switch access from any location on the network or from a remote site, using a web-browser. It allows extensive switch configuration setting, which can be backed up for duplication in other switches.

In addition, users can also use the built-in MIB to poll the switches for information about their status and send traps of abnormal events. MIB support allows users to integrate the switches with other third-party devices for management in an SNMP environment.

Põhiomadused

   Standardid ja funktsioonid

  • IEEE 802.3 10BASE-T Ethernet
  • IEEE 802.3u 100BASE-TX Fast Ethernet
  • IEEE 802.3ab 1000BASE-T Gigabit Ethernet
  • IEEE 802.3z Gigabit Ethernet
  • ANSI/IEEE 802.3 NWay auto-negotiation
  • Portide peegeldamine 

    Portide arv 
  • 48 x 10/100BASE-TX porti, 2 x 10/100/1000 BASE-T porti, 2 x kombo 10/100/1000BASE-T/SFP porti
    *SFP kasutamisel vastavad 10/100/1000 BASE-T pordid blokeeritakse 

    Protokoll
  • CSMA/CD 

    Andmeedastuskiirus
  • Ethernet:
    10 Мbit/s (pooldupleksrežiim)
    20 Мbit/s (täisdupleksrežiim)
  • Fast Ethernet:
    100 Мbit/s (pooldupleksrežiim)
    200 Мbit/s (täisdupleksrežiim)
  • Gigabit Ethernet:
    2000 Мbit/s (täisdupleksrežiim) 

    Võrgu topoloogis 
  • Täht

    Võrgukaablid 
  • UTP Cat. 5, Cat. 5e (max 100 m)
  • EIA/TIA-568 100-Оom STP (max 100 m)

    Pool-/täisdupleks
  • Pool-/täisdupleks 10/100 Мbit/s kiiruse jaoks
  • Täisdupleks Gigabit kiiruse jaoks

    Liides 
  • MDI/MDIX keerupaar 

    Indikaatorid
  • Power/CPU
  • Link/Act (10/100/BASE-TX)
  • 10/100 Mbps Speed, 100/1000 Mbps Speed (10/100/1000BASE-T pordi jaoks)
  • Link/Act (SFP pordi jaoks) 

    Tarkvara

    2 taseme funktsioonid
  • IGMP snooping: 64 Multicast gruppide toetus
  • Default Flooding portide jaoks
  • 802.1D Spanning Tree
    Portide agregeerimine: kuni 6 gruppi seadmele, kuni 8 porti grupile 

    VLAN
  • Standart 802.1Q VLAN (VLAN Tagging)
  • Kuni 256 staatilist VLAN gruppi

    QoS (teenusekvaliteet)
  • Järjekorda prioritiseerimise standard 802.1p
  • Kuni 4 järjekorda pordil
  •  WRR meetodi toetus  

    Turvalisus
  • Ligipääsu juhtimine 802.1x pordi baasil 
  • D-Link Safeguard Engine CPU kaitsmiseks 

    Juhtimine
  • Web-liides või SmartConsole utiliit
  • SNMP toetus
  • DHCP-klient
  • Pordi ligipääsu juhtimine
  • Veebipõhine reserv kopeerimise/taastamise seadistamine
  • Veebipõhine tarkvara reserv kopeerimine/taastamine seadistamine 
  • Tarkvara uuendamine SmartConsole utiliidi abil
  • Taaskäivitamine 

    MIB
  • RFC 1213 MIB-II
  • D-Link Enterprise Private MIB

    Tootlikkus

    Läbilaskevõime 
  • 17.6 Gbit/s

    Kommutatsiooni meetod
  • Store-and-forward

    MAC-aadressite tabel
  • 8 Кb kirjet

    МАС-aadressite uurimine
  • Kuni 256 staatilist MAC-aadressi
  • MAC-аaadressi auto-learning sisse- ja väljalülitamine

    Paketide filtreerimine/andmeedastuskiirus
    (pooldupleksrežiim)
  • Мaksimaalselt 1,488,095 pps pordil

    RAM buffer
  • 128 Кб seadmele

Füüsilised parameetrid

   Toide 

  • Sisene universaalne toiteallikas 100 kuni 240 V vahelduvvoolu, 50/60 Hz

    Tarbitav võimsus 
  • 26.2 W (max) 

    Soojuse eraldumine 
  • 86.95 BTU/t

    Töötemperatuur
  • 0 kuni 40 C 

    Säilitamistemperatuur
  • -10 kuni 70 C 

    Tööniiskus
  • 10% kuni 90% ilma kondensatsioonita 

    Säilitamisniiskus
  • 5% kuni 90% ilma kondensatsioonita 

    Mõõdud
  • 440 mm x 310 mm x 44 mm 

    Kaal
  • 3.724 kg

    EMI
  • FCC Class A
  • CE Class A
  • VCCI Class A 

    Turvalisus
  • CUL

Sertifikaadid

Sidustooted

Pildid

DES–1252
Eestvaade
Tagantvaade

Failid

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