Drawing of J1772 (CCS1 Combo) connector, with labeled pinouts. This is a view facing the end of the plug. Drawn approximately to scale, 10px = 1mm. Dimensions abstracted from <a rel="nofollow" class="external free" href="https://web.archive.org/web/20210501000000*/https://ieee-pes.org/images/files/pdf/pesgm2011/supersessions/tues-am/1-IEEE-EVSE-Standards-Status-11_07_26_Kissel.pdf">https://web.archive.org/web/20210501000000*/https://ieee-pes.org/images/files/pdf/pesgm2011/supersessions/tues-am/1-IEEE-EVSE-Standards-Status-11_07_26_Kissel.pdf</a> and <a rel="nofollow" class="external free" href="http://www.fveaa.org/fb/FCI_Power-S3-SAE-J1772-Charge-plug-2010-06_276.pdf">http://www.fveaa.org/fb/FCI_Power-S3-SAE-J1772-Charge-plug-2010-06_276.pdf</a>. Details from <a rel="nofollow" class="external free" href="https://interchargers.com/plug/type-1/">https://interchargers.com/plug/type-1/</a>
<p>L1 - AC Line, for single phase AC or split phase (up to 250v).
</p><p>N  - AC Neutral (single phase) or AC Line2 (split phase).
</p><p>PE - Protective Earth (AC Ground)
</p><p>PP - Proximity Pilot (aka Plug Present or Connection Switch). Connected to vehicle chassis ground. Used to detect plug is inserted.
</p><p>CP - Control Pilot (digital signalling). Communicate max current and control charge start/end.
</p>
DC+/DC- - Direct Current charge pins
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<span class="int-own-work" lang="en">Own work</span>