Loading


Categories (x) > Networking > PoE (x)

Results 1-10 of 57 1 2 3 4 5 > >> 
  • Manual... 
  • VDSL PoE/PD Ethernet Extender Kit User Manual
    User Manual for the LBPD01A-KIT
 
  • Manual... 
  • 802.3at PoE (1 Port) Gigabit Injector User Manual
    User Manual for 802.3at PoE (1 Port) Gigabit Injector (2)
 

The difference between unmanaged, managed, and Web-smart switches

With regard to management options, the three primary classes of switches are unmanaged, managed, and Web smart. Which you choose depends largely on the size of your network and how... more/see it nowmuch control you need over that network.

Unmanaged switches are basic plug-and-play switches with no remote configuration, management, or monitoring options, although many can be locally monitored and configured via LED indicators and DIP switches. These inexpensive switches are typically used in small networks or to add temporary workgroups to larger networks.

Managed switches support Simple Network Management Protocol (SNMP) via embedded agents and have a command line interface (CLI) that can be accessed via serial console, Telnet, and Secure Shell. These switches can often be configured and managed as groups. More recent managed switches may also support a Web interface for management through a Web browser.

These high-end switches enable network managers to remotely access a wide range of capabilities including:

  • SNMP monitoring.
  • Enabling and disabling individual ports or port Auto MDI/MDI-X.
  • Port bandwidth and duplex control.
  • IP address management.
  • MAC address filtering.
  • Spanning Tree.
  • Port mirroring to monitor network traffic.
  • Prioritization of ports for quality of service (QoS).
  • VLAN settings.
  • 802.1X network access control.
  • IGMP snooping.
  • Link aggregation or trunking.

  • Managed switches, with their extensive management capabilities, are at home in large enterprise networks where network administrators need to monitor and control a large number of network devices. Managed switches support redundancy protocols for increased network availability.

    Web-smart switches—sometimes called smart switches or Web-managed switches—have become a popular option for mid-sized networks that require management. They offer access to switch management features such as port monitoring, link aggregation, and VPN through a simple Web interface via an embedded Web browser. What these switches generally do not have is SNMP management capabilities or a CLI. Web-smart switches must usually be managed individually rather than in groups.

    Although the management features found in a Web-smart switch are less extensive than those found in a fully managed switch, these switches are becoming smarter with many now offering many of the features of a fully managed switch. Like managed switches, they also support redundancy protocols for increased network availability.

    collapse


    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


    • Manual... 
    • Hardened PoL PoE Ethernet Extender User Manual
      User Manual for the LBPS310A-KIT, LBPS311A, & LBPS312A (Version 1)
     
    • Manual... 
    • LPB5000 Series Gigabit PoE+ Ethernet Managed Switch Eco User Manual
      Installation & Getting Started Guide for the LPB5028A and LPB5052A (Version 2)
     
    • Manual... 
    • 802.3af (8-Port) PoE Gigabit Injector User Manual
      User Manual for 802.3af (8-Port) PoE Gigabit Injector (2)
     

    • Manual... 
    • PoE PSE Media Converter, 10BASE-T/100BASE-TX to 100BASE-FX
      Installation and User Guide (Jun-06)
     
    Results 1-10 of 57 1 2 3 4 5 > >> 
    Close

    Support

    Delivering superior technical support is our highest priority. Depending on the products or services we provide for you, please visit your appropriate support area.



     

    You have added this item to your cart.

    Print
    Black Box 1-877-877-2269 Black Box Network Services