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  • Video...Hardened Managed Ethernet Switches Demonstration

    In this clever demonstration, a movie is played on-screen to show how Black Box&#39;s Hardened Managed Ethernet Switches provide instantaneous failover when the primary link fails. You&#39;ll see how there... more/see it nowis virtually no change in the on-screen movie due to dropped packets when the primary cable link is physically cut. collapse

  • Pdf Drawing... 
  • Premium Ceramic, Multimode, 62.5-Micron Fiber Optic Patch Cable PDF Drawing
    PDF Drawing for EFN110-STLC Series (Version 1)
 
  • Manual... 
  • Secure Site Manager, 16-Port
    Installation and User Guide (Jan-07)
 
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  • GigaStation 2 Blank Snap Fittings PDF Drawing
    PDF Drawing for FMT330-R2 (Version 1)
 
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  • GigaTrue 550 CAT6, 550-MHz Solid Bulk Cable (PVC, Blue) PDF Drawing
    PDF Drawing for the EYN870A-PB-1000 (1)
 
  • Manual... 
  • ISDN Data Line Surge Protector, RJ-45, S/T Interface (8-Pin) Manual
    Manual for SP060A-R2 (Version 1)
 

Product Data Sheets (pdf)...Multimode, 50-Micron, Distribution-Style Bulk Fiber Optic Cable



Product Data Sheets (pdf)...10/100 Secure Device Servers, RS-232/422/485 and 10/100/1000 Secure Device Servers, RS-232/422/485


Black Box Explains…A terminal server by any other name.

A terminal server (sometimes called a serial server or a console server or a device server) is a hardware device that enables you to connect serial devices across a network.

Terminal... more/see it nowservers acquired their name because they were originally used for long-distance connection of dumb terminals to large mainframe systems such as VAX™. Today, the name terminal server refers to a device that connects any serial device to a network, usually Ethernet. In this day of network-ready devices, terminal servers are not as common as they used to be, but they’re still frequently used for applications such as remote connection of PLCs, sensors, or automatic teller machines.

The primary advantage of terminal servers is that they save you the cost of running separate RS-232 devices. By using a network, you can connect serial devices even over very long distances—as far as your network stretches. It’s even possible to connect serial devices across the Internet. A terminal server connects the remote serial device to the network, and then another terminal server somewhere else on the network connects to the other serial device.

Terminal servers act as virtual serial ports by providing the appropriate connectors for serial data and also by grouping serial data in both directions into Ethernet TCP/IP packets. This conversion enables you to connect serial devices across Ethernet without the need for software changes.

Because terminal servers send data across a network, security is a consideration. If your network is isolated, you can get by with an inexpensive terminal server that has few or no security functions. But if you’re using a terminal server to make network connections across a network that’s also an Internet subnet, you should look for a terminal server that offers extensive security features. collapse

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