<div dir="auto">From wikipedia:<div dir="auto"><span style="color:rgb(32,33,34);font-family:-apple-system,blinkmacsystemfont,"segoe ui",roboto,lato,helvetica,arial,sans-serif;font-size:16px;background-color:rgb(255,255,255)">In 1993, the </span><a href="https://en.m.wikipedia.org/wiki/International_Organization_for_Standardization" style="margin:0px;padding:0px;border:0px;line-height:inherit;font-family:-apple-system,blinkmacsystemfont,"segoe ui",roboto,lato,helvetica,arial,sans-serif;font-size:16px;vertical-align:baseline;background:none rgb(255,255,255);color:rgb(107,75,161);text-decoration-line:none">International Organization for Standardization</a><span style="color:rgb(32,33,34);font-family:-apple-system,blinkmacsystemfont,"segoe ui",roboto,lato,helvetica,arial,sans-serif;font-size:16px;background-color:rgb(255,255,255)"> (ISO) released the CAN standard ISO 11898 which was later restructured into two parts; ISO 11898-1 which covers the </span><a href="https://en.m.wikipedia.org/wiki/Data_link_layer" style="margin:0px;padding:0px;border:0px;line-height:inherit;font-family:-apple-system,blinkmacsystemfont,"segoe ui",roboto,lato,helvetica,arial,sans-serif;font-size:16px;vertical-align:baseline;background:none rgb(255,255,255);color:rgb(107,75,161);text-decoration-line:none">data link layer</a><span style="color:rgb(32,33,34);font-family:-apple-system,blinkmacsystemfont,"segoe ui",roboto,lato,helvetica,arial,sans-serif;font-size:16px;background-color:rgb(255,255,255)">, and ISO 11898-2 which covers the CAN physical layer for high-speed CAN. ISO 11898-3 was released later and covers the CAN physical layer for low-speed, fault-tolerant CAN.</span><br></div><div dir="auto"><span style="color:rgb(32,33,34);font-family:-apple-system,blinkmacsystemfont,"segoe ui",roboto,lato,helvetica,arial,sans-serif;font-size:16px;background-color:rgb(255,255,255)"><br></span></div><div dir="auto"><span style="color:rgb(32,33,34);font-family:-apple-system,blinkmacsystemfont,"segoe ui",roboto,lato,helvetica,arial,sans-serif;font-size:16px;background-color:rgb(255,255,255)">Jacob</span></div></div>