{"id":1832,"date":"2021-12-26T16:37:12","date_gmt":"2021-12-26T06:37:12","guid":{"rendered":"https:\/\/blog.hegars.com\/?p=1832"},"modified":"2022-03-17T21:39:46","modified_gmt":"2022-03-17T11:39:46","slug":"10base2-retro-network","status":"publish","type":"post","link":"https:\/\/blog.hegars.com\/?p=1832","title":{"rendered":"10Base2 Retro Network"},"content":{"rendered":"\n<p>Building a retro Chepernet 10Base2 network for retro computers and device of the time, Much like I used to in the old days circa 1999<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ethernet Specification<\/h2>\n\n\n\n<p>IEEE 802.3a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><\/td><td><strong>10Base2<\/strong><\/td><\/tr><tr><td><strong>Transmission Speed<\/strong><\/td><td>10Mbps<\/td><\/tr><tr><td><strong>Transmission Media<\/strong><\/td><td>RG-58 50\u03a9 COAX<\/td><\/tr><tr><td><strong>Maximum Segment Length<\/strong><\/td><td>185m<\/td><\/tr><tr><td><strong>Maximum Node\/Segment<\/strong><\/td><td>30<\/td><\/tr><tr><td><strong>Minimum Length Between Nodes<\/strong><\/td><td>0.5m<\/td><\/tr><tr><td><strong>Repeater\/Series<\/strong><\/td><td>4<\/td><\/tr><tr><td><strong>Maximum Nwtwork Length<\/strong><\/td><td>925m<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Hardware Design for MAU<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/i.stack.imgur.com\/JAEk6.jpg\" alt=\"Does the voltage increase on 10Base2 and 10Base5 ethernet when the signal  is reflected? Will this trigger the collision detection? - Electrical  Engineering Stack Exchange\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Devices On Retro LAN<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">PC<\/h3>\n\n\n\n<p>Retro pcs?<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Unix<\/h3>\n\n\n\n<p>IBM RS\/6000<\/p>\n\n\n\n<p>Sun Workstation<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Other device<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">HP LaserJet 4000 C4120A (via Jetdirect J3111A)<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">HP Jetdirect EX J2591A Print Server<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"193\" src=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1-1024x193.png\" alt=\"\" class=\"wp-image-1836\" srcset=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1-1024x193.png 1024w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1-300x57.png 300w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1-768x145.png 768w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1-1536x290.png 1536w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1-2048x386.png 2048w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1-1080x204.png 1080w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1-1280x241.png 1280w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1-980x185.png 980w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1-480x91.png 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Dlink DL514 Remote Access Server<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"163\" src=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1024x163.png\" alt=\"\" class=\"wp-image-1835\" srcset=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1024x163.png 1024w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-300x48.png 300w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-768x122.png 768w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1536x244.png 1536w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-2048x326.png 2048w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1080x172.png 1080w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-1280x203.png 1280w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-980x156.png 980w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/12\/image-480x76.png 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">USROBITICS 56k modem<\/h4>\n\n\n\n<h2 class=\"wp-block-heading\">Connection to the internet<\/h2>\n\n\n\n<p><strong>Cisco IAD2431<\/strong> (ISDN E1 PRI)  to <strong>Cisco 3800<\/strong> with Digital Modems and NM-1CE1T1-PRI<\/p>\n\n\n\n<p>Dial up via 56k modem to FXS then to E1 then to a Digital modem and to network AS<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>or<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>NM-1E to aui <\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OK Rabbit Hole Time<\/h2>\n\n\n\n<p>Ok I&#8217;ve settled on a Cisco 3640 after fighting with the 2600xm and 3700 routers I have in my control I needed to get a 3600 router for module support.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/02\/image-24-1024x683.png\" alt=\"\" class=\"wp-image-1959\" srcset=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/02\/image-24-1024x683.png 1024w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/02\/image-24-300x200.png 300w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/02\/image-24-768x512.png 768w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/02\/image-24-1536x1024.png 1536w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/02\/image-24-2048x1365.png 2048w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/02\/image-24-1080x720.png 1080w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/02\/image-24-1280x853.png 1280w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/02\/image-24-980x653.png 980w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/02\/image-24-480x320.png 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>The C3640 has the following modules and should look like the below image.<\/p>\n\n\n\n<p>NM-2FE2W-V2 (WIC-2T + VWIC-1MFT-E1)<br>NM-1E2W (AUI Port to BNC)<br>NM-2V (VIC-2FXS)<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"331\" src=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-3-1024x331.png\" alt=\"\" class=\"wp-image-1981\" srcset=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-3-1024x331.png 1024w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-3-300x97.png 300w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-3-768x248.png 768w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-3-1536x496.png 1536w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-3-2048x661.png 2048w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-3-1080x349.png 1080w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-3-1280x413.png 1280w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-3-980x317.png 980w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-3-480x155.png 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>I used to run with the C3660&#8217;s (the below two beautiful beasts)<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"916\" src=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-2-1024x916.png\" alt=\"\" class=\"wp-image-1978\" srcset=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-2-1024x916.png 1024w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-2-300x268.png 300w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-2-768x687.png 768w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-2-1536x1373.png 1536w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-2-1080x966.png 1080w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-2-1280x1144.png 1280w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-2-980x876.png 980w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-2-480x429.png 480w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-2.png 1699w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>so i had a few NM-2FE2W-V2&#8217;s laying around but had to order in some NM-2E2W to get an AUI port with support for the 3640s i was uising now<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"712\" src=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1-1024x712.png\" alt=\"\" class=\"wp-image-1973\" srcset=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1-1024x712.png 1024w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1-300x209.png 300w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1-768x534.png 768w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1-1080x751.png 1080w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1-1280x891.png 1280w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1-980x682.png 980w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1-480x334.png 480w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1.png 1446w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">New Old Stock  &#8211; CenterCom MX10 MAU<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"728\" src=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1024x728.png\" alt=\"\" class=\"wp-image-1969\" srcset=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1024x728.png 1024w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-300x213.png 300w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-768x546.png 768w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1536x1091.png 1536w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-2048x1455.png 2048w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-400x284.png 400w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1080x767.png 1080w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-1280x910.png 1280w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-980x696.png 980w, https:\/\/blog.hegars.com\/wp-content\/uploads\/2022\/03\/image-480x341.png 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Building a retro Chepernet 10Base2 network for retro computers and device of the time, Much like I used to in the old days circa 1999 Ethernet Specification IEEE 802.3a 10Base2 Transmission Speed 10Mbps Transmission Media RG-58 50\u03a9 COAX Maximum Segment Length 185m Maximum Node\/Segment 30 Minimum Length Between Nodes 0.5m Repeater\/Series 4 Maximum Nwtwork Length [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-container-style":"default","site-container-layout":"default","site-sidebar-layout":"default","disable-article-header":"default","disable-site-header":"default","disable-site-footer":"default","disable-content-area-spacing":"default","footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/posts\/1832"}],"collection":[{"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1832"}],"version-history":[{"count":26,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/posts\/1832\/revisions"}],"predecessor-version":[{"id":1983,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/posts\/1832\/revisions\/1983"}],"wp:attachment":[{"href":"https:\/\/blog.hegars.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}