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  • Firmware... 
  • 26-Port PoE+ Gigabit Managed Switch Eco Firmware
    Firmware for the LPB2826A (Version v1.59)
 
  • Manual... 
  • PoE+ Gigabit Managed Switch Eco User Manual
    User Manual for the LPB2810A, LPB2826A, and LPB2848A (Version 1)
 

Black Box Explains... Bridges

If you work with legacy networks, you have doubtlessly encountered bridges. Bridges perform the same function as today’s switches in that they connect multiple network segments to create one homogenous... more/see it nownetwork, while keeping each segment isolated from the others.

Bridges operate on MAC-layer addresses and are protocol independent, so they transfer data between workstations without understanding the protocol. Since they don’t have to understand the protocol, they require little or no configuration.

Once you connect the bridge to the network, it automatically learns the addresses of all connected nodes and then creates an internal address table of this information.

When the bridge sees a packet, it checks the packet’s destination address against its internal list. If the address indicates the packet needs to be forwarded, the bridge passes the packet to the appropriate segment. If a bridge doesn’t know where a packet belongs—for example, when a station is first powered on—it passes on the packet.

Bridges can also distinguish between local data and remote data, so data traveling from one workstation to another in the same network doesn’t have to cross the bridge.

Although they are no longer in general use, Black Box stocks bridges for use as replacement parts in legacy networks. Replacing bridges with bridges rather than switches is often preferable because bridges are generally available with the BNC and AUI interfaces often found in older networks. Also, some bridges are able to link to other protocols such as RS-530 and X.21, enabling you to use these media to establish Ethernet network connections. collapse


Product Data Sheets (pdf)...Local Repeaters/Remote Fiber Optic Repeaters

  • Manual... 
  • MultiPower Miniature Media Converters, 10-/100-/1000-Mbps Copper to 1000-Mbps Duplex Fiber Autosensi
    (Version 1)
 
  • Manual... 
  • 10BASE-T/100BASE-TX G.SHDSL Two-Wire Extender/NTU User Manual
    User Manual for the LB510A-R2 (Version 1)
 
  • Quick Start Guide... 
  • Gigabit Smart Switch (Eco Fanless) QSG
    QSG for the LGB2118A & LGB2124A (Version 2)
 
  • Quick Start Guide... 
  • 4-Port Hardened Serial Server QSG
    Quick Start Guide for the LES424A (Version 1)
 
  • Manual... 
  • Unmanaged 802.3af PoE Gigabit Ethernet Switch, 5-Port User Manual
    User Manual for Unmanaged 802.3af PoE Gigabit Ethernet Switch, 5-Port (1)
 
  • Manual... 
  • Hardened Managed Ethernet Switch User Manual
    User Manual for the LEH900 Series, LEH1000 Series, LEH1100, & LEH1200 Series (Version 3)
 
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