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  • Specification Sheet... 
  • Industrial Opto-Isolated RS-422/485 Repeater Specification Sheet
    Specification Sheet for the ICD202A (Version 2)
 
  • 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.

  • Quick Start Guide... 
  • 10BASE-T/100BASE-TX Hardened Ethernet Extender Switch, 8-Port
    Quick Start Guide for the LB308A (Version 2)
 

Black Box Explains...Digital Visual Interface (DVI) and other digital display interfaces.

There are three main types of digital video interfaces: P&D, DFP, and DVI. P&D (Plug & Display, also known as EVC), the earliest of these technologies, supports both digital and... more/see it nowanalog RGB connections and is now used primarily on projectors. DFP (Digital Flat-Panel Port) was the first digital-only connector on displays and graphics cards; it’s being phased out.

There are different types of DVI connectors: DVI-D, DVI-I, DVI-A, DFP, and EVC.

DVI-D is a digital-only connector. DVI-I supports both digital and analog RGB connections. Some manufacturers are offering the DVI-I connector type on their products instead of separate analog and digital connectors. DVI-A is used to carry an analog DVI signal to a VGA device, such as a display. DFP, like DVI-D, was an early digital-only connector used on some displays; it’s being phased out. EVC (also known as P&D) is similar to DVI-I only it’s slightly larger in size. It also handles digital and analog connections, and it’s used primarily on projectors.

All these standards are based on transition-minimized differential signaling (TMDS). In a typical single-line digital signal, voltage is raised to a high level and decreased to a low level to create transitions that convey data. TMDS uses a pair of signal wires to minimize the number of transitions needed to transfer data. When one wire goes to a high-voltage state, the other goes to a low-voltage state. This balance increases the data-transfer rate and improves accuracy. collapse


Product Data Sheets (pdf)...Short-Haul Modem FSK (SHM-FSK)


  • Software... 
  • ServSwitch DVI/VGA Extender Software
    Software for the ACS253A-CT, ACS253A-MM, ACS253A-SM, ACS253A-U-MM-R2, and ACS253A-U-SM-R2
 
  • Quick Start Guide... 
  • 10BASE-T/100BASE-TX Hardened Ethernet Extender over vDSL
    (Version 1)
 

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