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  • Pro Switching System 1U NBS User Manual
    User Manual for the NBS004A, NBS004MA, NBS006A, NBS006MA, NBS008A, NBS008MA, NBS016A, NBS016MA, NBSALL8, and NBSALL8MGR (Version 1)
 


Product Data Sheets (pdf)...Compact Bidirectional Autoswitches


Black Box Explains... Printer Sharing with Windows

Unlike the earlier DOS operating systems, Windows® doesn’t check to see if the printer is busy at the very beginning of the printing process. Windows will send out data to... more/see it nowstart a job even if the printer is signaling busy or unavailable. If your print sharer doesn’t have a buffer, critical printer-initialization information can be lost before your job is started. Once the initialization information is lost, the printer cannot interpret the job correctly.

A buffered print-sharing device is the most practical solution. When Windows starts printing to a buffered port, it “thinks“ it’s talking directly to the printer, and the critical initialization information is stored by the buffer. The buffer can send out a busy signal to Windows, so it delays sending more information until the buffer is accessible again. collapse



Black Box Explains...Electronic vs. manual switches.

What’s the difference between electronic and manual switches? Are the benefits of electronic switches worth the price increase over manual switches?

As you might imagine, the inner workings of manual switches... more/see it noware far simpler than those of electronic switches. When you turn the dial of a manual switch, internal connections are physically moved. This is great for less complex applications, but it can cause voltage spikes that can damage particularly sensitive equipment such as laser printers.

Because electronic switches do their switching with solid-state components, you have more control in advanced applications. For example, our AC-powered, code-operated, and fallback switches offer numerous options for out-of-band management of critical network resources. They give you the remote control your operation may need. You can control your high-end applications and sensitive equipment via computer, modem, or even touch-tone phone—a convenience simply not available with manual switches. collapse



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