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Cat 6 instead of Cat 5
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<blockquote data-quote="Tim Duffin" data-source="post: 51262" data-attributes="member: 400"><p>Re: Cat 6 instead of Cat 5</p><p></p><p>I don't have time to explain every difference between the two categories.</p><p></p><p>there are several parameters which change:</p><p></p><p>[TABLE="width: 100%"]</p><p>[TR]</p><p>[TD="bgcolor: #f1f1f1"]<span style="color: maroon"><strong>Parameter</strong></span>[/TD]</p><p>[TD="bgcolor: #f1f1f1"]<span style="color: maroon"><strong>Category 5</strong></span></p><p><span style="color: maroon"><strong>and Class D</strong></span></p><p>with additional</p><p>requirements TSB95</p><p>and FDAM 2[/TD]</p><p>[TD="bgcolor: #f1f1f1"]<span style="color: maroon"><strong>Category 5e</strong></span></p><p>('568-A-5)[/TD]</p><p>[TD="bgcolor: #f1f1f1"]<span style="color: maroon"><strong></strong></span></p><p><span style="color: maroon"><strong>Category 6</strong></span></p><p><span style="color: maroon"><strong>Class E</strong></span></p><p>(Performance at</p><p>250 MHz shown</p><p>in parentheses)[/TD]</p><p>[/TR]</p><p>[TR]</p><p>[TD]<strong>Specified frequency range</strong>[/TD]</p><p>[TD="align: center"]1-100 MHz[/TD]</p><p>[TD="align: center"]1-100 MHz[/TD]</p><p>[TD="align: center"]1-250 MHz[/TD]</p><p>[/TR]</p><p>[TR]</p><p>[TD]<strong>Attenuation</strong>[/TD]</p><p>[TD="align: center"]24 dB[/TD]</p><p>[TD="align: center"]24 dB[/TD]</p><p>[TD="align: center"]21.7 dB</p><p>(36 dB)[/TD]</p><p>[/TR]</p><p>[TR]</p><p>[TD]<strong>NEXT</strong>[/TD]</p><p>[TD="align: center"]27.1 dB[/TD]</p><p>[TD="align: center"]30.1 dB[/TD]</p><p>[TD="align: center"]39.9 dB</p><p>(33.1 dB)[/TD]</p><p>[/TR]</p><p>[TR]</p><p>[TD]<strong>Power-sum NEXT</strong>[/TD]</p><p>[TD="align: center"]N/A*[/TD]</p><p>[TD="align: center"]27.1 dB[/TD]</p><p>[TD="align: center"]37.1 dB</p><p>(30.2 dB)[/TD]</p><p>[/TR]</p><p>[TR]</p><p>[TD]<strong>ACR</strong>[/TD]</p><p>[TD="align: center"]3.1 dB[/TD]</p><p>[TD="align: center"]6.1 dB[/TD]</p><p>[TD="align: center"]18.2 dB</p><p>(-2.9 dB)[/TD]</p><p>[/TR]</p><p>[TR]</p><p>[TD]<strong>Power-sum ACR</strong>[/TD]</p><p>[TD="align: center"]N/A[/TD]</p><p>[TD="align: center"]3.1 dB[/TD]</p><p>[TD="align: center"]15.4 dB</p><p>(-5.8 dB)[/TD]</p><p>[/TR]</p><p>[TR]</p><p>[TD]<strong>ELFEXT</strong>[/TD]</p><p>[TD="align: center"]17 dB</p><p>(new requirement)[/TD]</p><p>[TD="align: center"]17.4 dB[/TD]</p><p>[TD="align: center"]23.2 dB</p><p>(15.3 dB)[/TD]</p><p>[/TR]</p><p>[TR]</p><p>[TD]<strong>Power-sum ELFEXT</strong>[/TD]</p><p>[TD="align: center"]14.4 dB</p><p>(new requirement)[/TD]</p><p>[TD="align: center"]14.4 dB[/TD]</p><p>[TD="align: center"]20.2 dB</p><p>(12.3 dB)[/TD]</p><p>[/TR]</p><p>[TR]</p><p>[TD]<strong>Return loss</strong>[/TD]</p><p>[TD="align: center"]8 dB*</p><p>(new requirement)[/TD]</p><p>[TD="align: center"]10 dB[/TD]</p><p>[TD="align: center"]12 dB</p><p>(8 dB)[/TD]</p><p>[/TR]</p><p>[TR]</p><p>[TD]<strong>Propagation delay</strong>[/TD]</p><p>[TD="align: center"]548 nsec[/TD]</p><p>[TD="align: center"]548 nsec[/TD]</p><p>[TD="align: center"]548 nsec</p><p>(546 nsec)[/TD]</p><p>[/TR]</p><p>[TR]</p><p>[TD]<strong>Delay skew</strong>[/TD]</p><p>[TD="align: center"]50 nsec[/TD]</p><p>[TD="align: center"]50 nsec[/TD]</p><p>[TD="align: center"]50 nsec</p><p></p><p>[/TD]</p><p>[/TR]</p><p>[/TABLE]</p><p></p><p> You cannot simply change cat 5 for cat 6 in an analog device or your device will not work anymore, especially if you are transmitting video or another high frequency signal. This is because the skew changes and the rx equipment cannot compensate for this change. Digital devices are incredibly more picky about which cable specification is used.</p></blockquote><p></p>
[QUOTE="Tim Duffin, post: 51262, member: 400"] Re: Cat 6 instead of Cat 5 I don't have time to explain every difference between the two categories. there are several parameters which change: [TABLE="width: 100%"] [TR] [TD="bgcolor: #f1f1f1"][COLOR=maroon][B]Parameter[/B][/COLOR][/TD] [TD="bgcolor: #f1f1f1"][COLOR=maroon][B]Category 5 and Class D[/B][/COLOR] with additional requirements TSB95 and FDAM 2[/TD] [TD="bgcolor: #f1f1f1"][COLOR=maroon][B]Category 5e[/B][/COLOR] ('568-A-5)[/TD] [TD="bgcolor: #f1f1f1"][COLOR=maroon][B] Category 6 Class E[/B][/COLOR] (Performance at 250 MHz shown in parentheses)[/TD] [/TR] [TR] [TD][B]Specified frequency range[/B][/TD] [TD="align: center"]1-100 MHz[/TD] [TD="align: center"]1-100 MHz[/TD] [TD="align: center"]1-250 MHz[/TD] [/TR] [TR] [TD][B]Attenuation[/B][/TD] [TD="align: center"]24 dB[/TD] [TD="align: center"]24 dB[/TD] [TD="align: center"]21.7 dB (36 dB)[/TD] [/TR] [TR] [TD][B]NEXT[/B][/TD] [TD="align: center"]27.1 dB[/TD] [TD="align: center"]30.1 dB[/TD] [TD="align: center"]39.9 dB (33.1 dB)[/TD] [/TR] [TR] [TD][B]Power-sum NEXT[/B][/TD] [TD="align: center"]N/A*[/TD] [TD="align: center"]27.1 dB[/TD] [TD="align: center"]37.1 dB (30.2 dB)[/TD] [/TR] [TR] [TD][B]ACR[/B][/TD] [TD="align: center"]3.1 dB[/TD] [TD="align: center"]6.1 dB[/TD] [TD="align: center"]18.2 dB (-2.9 dB)[/TD] [/TR] [TR] [TD][B]Power-sum ACR[/B][/TD] [TD="align: center"]N/A[/TD] [TD="align: center"]3.1 dB[/TD] [TD="align: center"]15.4 dB (-5.8 dB)[/TD] [/TR] [TR] [TD][B]ELFEXT[/B][/TD] [TD="align: center"]17 dB (new requirement)[/TD] [TD="align: center"]17.4 dB[/TD] [TD="align: center"]23.2 dB (15.3 dB)[/TD] [/TR] [TR] [TD][B]Power-sum ELFEXT[/B][/TD] [TD="align: center"]14.4 dB (new requirement)[/TD] [TD="align: center"]14.4 dB[/TD] [TD="align: center"]20.2 dB (12.3 dB)[/TD] [/TR] [TR] [TD][B]Return loss[/B][/TD] [TD="align: center"]8 dB* (new requirement)[/TD] [TD="align: center"]10 dB[/TD] [TD="align: center"]12 dB (8 dB)[/TD] [/TR] [TR] [TD][B]Propagation delay[/B][/TD] [TD="align: center"]548 nsec[/TD] [TD="align: center"]548 nsec[/TD] [TD="align: center"]548 nsec (546 nsec)[/TD] [/TR] [TR] [TD][B]Delay skew[/B][/TD] [TD="align: center"]50 nsec[/TD] [TD="align: center"]50 nsec[/TD] [TD="align: center"]50 nsec [/TD] [/TR] [/TABLE] You cannot simply change cat 5 for cat 6 in an analog device or your device will not work anymore, especially if you are transmitting video or another high frequency signal. This is because the skew changes and the rx equipment cannot compensate for this change. Digital devices are incredibly more picky about which cable specification is used. [/QUOTE]
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