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Product Data Sheets (pdf)...Standard Media Converter Switches

  • Video...Power over Ethernet Explained

    There are a lot of misconceptions and myths surrounding Power over Ethernet (PoE). Learn what PoE is—and is not—and clarify how it can be an important part of your network.


Black Box Explains... GBICs

A Gigabit Interface Converter (GBIC) is a transceiver that converts digital electrical currents to optical signals and back again. GBICs support speeds of 1 Gbps or more and are typically... more/see it nowused as an interface between a high-speed Ethernet or ATM switch and a fiber backbone. GBICs are hot-swappable, so switches don’t need to be powered down for their installation. collapse

  • Quick Start Guide... 
  • 1-Port Hardened Serial Server QSG
    Quick Start Guide for the LES421A (Version 1)
 

Product Data Sheets (pdf)...Extreme Media Converter Switches

  • Quick Start Guide... 
  • 10BASE-T/100BASE-TX Hardened Ethernet Extender Switch, 8-Port
    Quick Start Guide for the LB308A (Version 2)
 
  • Manual... 
  • WRT4000 Series Cellular Wireless Router User Manual
    User Manual for the WRT4000 Series Cellular Wireless Routers and Accessories (Version 1)
 

Product Data Sheets (pdf)...FlexPoint RS-232 to Fiber Converters

  • Quick Start Guide... 
  • 4-Port Hardened Serial Server QSG
    Quick Start Guide for the LES424A (Version 1)
 

Black Box Explains... SNMP.

SNMP (Simple Network Management Protocol) management is the standard for LAN management, particularly in mission-critical applications. The standard is controlled by the Internet Engineering Task Force (IETF). It was designed... more/see it nowto manage network configuration, performance, faults, accounting, and security.

An SNMP agent must be present at the device level (a router or a hub, for example), either built into the unit or as a proxy agent, and is accessed through a remote terminal. SNMP does not follow a polling protocol. It waits to receive data from the remote device or sends data based on operator commands.

By using one common set of standards, SNMP enables network administrators to manage, monitor, and control their SNMP-compliant network equipment with one management system and from one management station. If a network device goes down, it|s possible to both pinpoint and troubleshoot the problem more efficiently. And a network administrator isn’t limited to equipment from just one vendor when using an SNMP program. collapse

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