https://osmocom.org/https://osmocom.org/favicon.ico?16647414092022-07-21T09:58:54ZOpen Source Mobile CommunicationsOCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=244172022-07-21T09:58:54Zlaforge
<ul><li><b>Checklist item</b> <input type='checkbox' class='checklist-checkbox' checked disabled> <i>figure out sponsored colocation</i> set to Done</li></ul> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=244182022-07-21T09:59:54Zlaforge
<ul><li><strong>Status</strong> changed from <i>New</i> to <i>Stalled</i></li><li><strong>% Done</strong> changed from <i>0</i> to <i>10</i></li></ul><p>still waiting for clarification on the GPS situation (RS485-PPS in one data centre or RF-over-fiber in the other). Sent another ping today.</p> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=244362022-07-22T06:51:34Zlaforge
<ul><li><strong>Status</strong> changed from <i>Stalled</i> to <i>In Progress</i></li></ul><p>laforge wrote in <a href="#note-2">#note-2</a>:</p>
<blockquote>
<p>still waiting for clarification on the GPS situation (RS485-PPS in one data centre or RF-over-fiber in the other). Sent another ping today.</p>
</blockquote>
<p>So, today I finally received confirmation: We will bein the data centre where RS-485 over CAT-5 is used for the clock between rack and roof.</p>
This means:
<ul>
<li>On the roof
<ul>
<li>GPS antenna</li>
<li>Ericsson <a class="wiki-page" href="https://osmocom.org/projects/ericsson-rbs-6xxx/wiki/GPS_02">GPS_02</a> (on DIN-Rail)</li>
<li>RS-485 overvoltage protector[s] (on DIN-Rail)</li>
</ul>
</li>
<li>In the rack
<ul>
<li>icE1usb</li>
<li>phantom voltage power supply (12V)</li>
<li>RS485 converter for 1PPS + NMEA
<ul>
<li>probably similar to the <a href="https://gitea.osmocom.org/electronics/osmo-small-hardware/src/branch/master/siu-clock-breakout" class="external">SIU Clock breakout</a></li>
</ul></li>
</ul></li>
</ul>
<p>TBD: get some idea about the cable length and figure out if the 12V phantom supply really can run over that kind of distance</p>
<p><a class="user active" href="https://osmocom.org/users/12">tnt</a> - are you still willing / able to work on some kind of icE1usb internal RS485 board? Given that we need to feed the 12V phantom voltage into the same CAT5, having an external board with something like a current limit / fuse and a DC barrel connector for an external PSU would probably make equal sense.</p>
<p>Given that all of this has to go into a rack, it might even make sense to mount the icE1usb, RS485 bits 12V PSU etc. all in a 1U enclosure. At that point it becomes irrelevant if the RS485 converters are inside the typical icE1usb enclosure or not.</p> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=244372022-07-22T07:18:12Zlaforge
<ul></ul>Potential RS485/RS422 OVP:
<ul>
<li>2x DEHN Blitzductor VT BVT RS485 5
<ul>
<li><a class="external" href="https://www.elektro4000.de/Installationsmaterial/Erdung-Blitz-und-Ueberspannungsschutz/Geraeteueberspannungsschutz/Ueberspannungsableiter-fuer-Informations-MSR-Technik/DEHN-UeS-Ableiter-Blitzductor-VT-BVT-RS485-5::45642.html">https://www.elektro4000.de/Installationsmaterial/Erdung-Blitz-und-Ueberspannungsschutz/Geraeteueberspannungsschutz/Ueberspannungsableiter-fuer-Informations-MSR-Technik/DEHN-UeS-Ableiter-Blitzductor-VT-BVT-RS485-5::45642.html</a></li>
<li><a class="external" href="https://www.dehn.de/store/f/19247100/EBA/1265_18S_0122_67576_BVT%20RS485_WEB.pdf">https://www.dehn.de/store/f/19247100/EBA/1265_18S_0122_67576_BVT%20RS485_WEB.pdf</a></li>
<li><a class="external" href="https://www.dehn.de/store/f/19247099/Artikelnummer_PDF/918401.pdf">https://www.dehn.de/store/f/19247099/Artikelnummer_PDF/918401.pdf</a></li>
</ul>
</li>
<li>3x DCO SD2 MD
<ul>
<li><a class="external" href="https://www.dehn.de/store/f/19246905/Artikelnummer_PDF/917940.pdf">https://www.dehn.de/store/f/19246905/Artikelnummer_PDF/917940.pdf</a></li>
<li><a class="external" href="https://www.dehn.de/store/f/19246847/EBA/1827_18S_0122_3010020_DCO%20SD2%20M_WEB.pdf">https://www.dehn.de/store/f/19246847/EBA/1827_18S_0122_3010020_DCO%20SD2%20M_WEB.pdf</a></li>
</ul></li>
</ul>
<p>The DCO SD2 MD looks good: doesn't use a lot of space, and we don't have to buy 4 pairs if we need only 2.</p>
General note:
<ul>
<li>We have three pairs (rx, tx and 1pps), so we typically need multiple OVP.</li>
<li>The RS485/RS422 are typically voltage-limited to 5V, so we need another OVP for the 12V</li>
</ul>
Potential 12V OVP:
<ul>
<li>Dehn BCO CL2 BE
<ul>
<li><a class="external" href="https://www.dehn.de/store/f/19343932/Artikelnummer_PDF/927922.pdf">https://www.dehn.de/store/f/19343932/Artikelnummer_PDF/927922.pdf</a></li>
<li><a class="external" href="https://www.dehn.de/store/f/19343885/EBA/2045_18S_0222_3016958_BCO%20CL2_WEB.pdf">https://www.dehn.de/store/f/19343885/EBA/2045_18S_0222_3016958_BCO%20CL2_WEB.pdf</a></li>
</ul></li>
</ul> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=244382022-07-22T07:37:26Ztnt
<ul></ul><p>We need "some" internal board anyway because the GPIO connector links to ... nothing.<br />It relies on a internal board to link some RJ45 pins to some of the available signals.<br />So I figured we might as well put the transceivers on there since that could then be re-used for other use-cases (or adapted for).</p> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=244392022-07-22T08:23:49Zlaforge
<ul><li><strong>File</strong> <a href="/attachments/5259">gps_antenne_rohr.jpg</a> <a class="icon-only icon-download" title="Download" href="/attachments/download/5259/gps_antenne_rohr.jpg">gps_antenne_rohr.jpg</a> added</li></ul><p>tnt wrote in <a href="#note-5">#note-5</a>:</p>
<blockquote>
<p>We need "some" internal board anyway because the GPIO connector links to ... nothing.<br />It relies on a internal board to link some RJ45 pins to some of the available signals.</p>
</blockquote>
<p>yes, that could have simply been a bridge</p>
<blockquote>
<p>So I figured we might as well put the transceivers on there since that could then be re-used for other use-cases (or adapted for).</p>
</blockquote>
<p>indeed. that <em>other use case</em> would probably need the inverse direction? so you'd at least need one direction-switchable transceiver and two fixed ones?</p>
<p>So I'll leave the RS4xx interface in your hands and assume we will have 2xRx and 1xTx pair on that spare RJ45 of the icE1usb.</p>
I'll meanwhile focus on the following bits:
<ul>
<li>mechanical mounting of GPS antenna (picture of my setup at home attached; I still have some more of that model of GPS antenna MA-700G)</li>
<li>over voltage protection (LP-GTR-NFF on coaxial plus something like discussed above for RS4xx)</li>
<li>12V power supply (phentom or not). The cable length is about 100m (!) no problem for the slow RS422/485, but that's about 20 ohms loop resistance for 12V. Need to test that.</li>
</ul> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=246032022-08-10T07:57:28Zlaforge
<ul></ul><p>I will be in Nuernberg (where the data centre is located) in the week of September 19, so my curren hope is to get everything procured, set up and tested before September 18, so I can then do the setup during that week.</p> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=246042022-08-10T07:57:39Zlaforge
<ul><li><strong>Due date</strong> set to <i>09/19/2022</i></li></ul> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=246352022-08-12T16:43:50Zlaforge
<ul><li><b>Checklist item</b> <input type='checkbox' class='checklist-checkbox' checked disabled> <i>acquire a related machine (server)</i> set to Done</li></ul> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=247822022-08-29T18:22:45Zlaforge
<ul><li><strong>Related to</strong> <i><a class="issue tracker-2 status-3 priority-3 priority-high3 closed" href="/issues/5667">Feature #5667</a>: Test different PM3 for ZModem throughput</i> added</li></ul> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=248102022-08-30T19:39:03Zlaforge
<ul><li><b>Checklist item</b> <input type='checkbox' class='checklist-checkbox' checked disabled> <i>detailed plan of physical setup</i> set to Done</li></ul> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=249032022-09-15T15:23:49Zlaforge
<ul><li><strong>% Done</strong> changed from <i>10</i> to <i>50</i></li></ul><p>installation confirmed for Monday, September 19th from 9am CEST onwards.</p> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=249562022-09-23T08:35:14Zlaforge
<ul><li><strong>% Done</strong> changed from <i>50</i> to <i>90</i></li></ul>pending topics:
<ul>
<li>some icE1usb firmware cleanups (<a class="issue tracker-2 status-3 priority-2 priority-default closed" title="Feature: icE1usb gateware/firmware support for external GPS receiver (Resolved)" href="https://osmocom.org/issues/5625">#5625</a>)</li>
<li>migrating users over to the new hub (will create new issue)</li>
</ul> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=249722022-09-29T08:12:12Zlaforge
<ul><li><b>Checklist item</b> <input type='checkbox' class='checklist-checkbox' disabled> <i>C*NET ENUM DNS update</i> added</li></ul><p>C*NET ENUM DNS update has been requested and confirmed, but actual DNS is still serving old data :(</p> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=249802022-10-01T08:18:20Zlaforge
<ul><li><b>Checklist item</b> <input type='checkbox' class='checklist-checkbox' checked disabled> <i>C*NET ENUM DNS update</i> set to Done</li></ul> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=249812022-10-01T08:18:40Zlaforge
<ul></ul><p>C-Net ENUM update has been implemented:</p>
<pre><code>1.2.3.4.0.3.9.4.std.ckts.info. 300 IN NAPTR 100 10 "u" "E2U+IAX2" "!^\\+*(.*)$!iax2:<a class="email" href="mailto:cnetguest@divf.nbg.de.retronetworking.org">cnetguest@divf.nbg.de.retronetworking.org</a>/\\1!" .</code></pre> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=250582022-10-10T09:28:57Zlaforge
<ul><li><strong>Status</strong> changed from <i>In Progress</i> to <i>Resolved</i></li></ul> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=250592022-10-10T09:29:08Zlaforge
<ul><li><strong>Related to</strong> <i><a class="issue tracker-3 status-3 priority-2 priority-default closed" href="/issues/5690">Support #5690</a>: migrate OCTOI users over to co-locate divf.retronetworking.org</i> added</li></ul> OCTOI - Osmocom Community TDM over IP - Bug #5542: Move hub to datacenter colocationhttps://osmocom.org/issues/5542?journal_id=250612022-10-10T09:29:50Zlaforge
<ul><li><strong>Related to</strong> <i><a class="issue tracker-2 status-3 priority-2 priority-default closed" href="/issues/5625">Feature #5625</a>: icE1usb gateware/firmware support for external GPS receiver</i> added</li></ul>