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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Maybe check whether there are any optical attenuators fitted somewhere along the Tx and Rx paths.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> AusNOG [mailto:ausnog-bounces@lists.ausnog.net]
<b>On Behalf Of </b>Robert Hudson<br>
<b>Sent:</b> Friday, 28 August 2015 3:31 PM<br>
<b>To:</b> ausnog@ausnog.net<br>
<b>Subject:</b> [AusNOG] Acceptable dBM loss over SM cross connect in a datacentre<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p>Hi all,<o:p></o:p></p>
<p>What level of loss should I accept on a single mode cross connect in a DC?<o:p></o:p></p>
<p>I have a dark fibre link measured as <4dBm end-to-end over a 13km run, but am seeing 19dBm switch-to-switch in both directions.<o:p></o:p></p>
<p>Thanks!<o:p></o:p></p>
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