# Help! Any jack wiring pics for amateur

**URL:** <https://lookmumnocomputer.discourse.group/t/help-any-jack-wiring-pics-for-amateur/802>\
**Category:** KOSMO MODULES\
**Created:** [May 4, 2020, 1:32pm UTC](https://lookmumnocomputer.discourse.group/t/help-any-jack-wiring-pics-for-amateur/802 "2020-05-04T13:32:42Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![fredrik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/fredrik/32/682_2.png) [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\
**Post date:** [May 6, 2020, 10:47am UTC](https://lookmumnocomputer.discourse.group/t/help-any-jack-wiring-pics-for-amateur/802/11 "2020-05-06T10:47:33Z")

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There is no standard pinout for jack sockets, so a photo of someone else’s wiring may not tell you much. Safest approach is to use a cable and your multimeter’s continuity tester, as outlined in this thread:

> [@HELP! Beginner Question CEM3340 VCO](https://lookmumnocomputer.discourse.group/t/help-beginner-question-cem3340-vco/444/2):
>
> Depends on the jack. The extra pin is probably a switch but there are many configurations (see [this post](https://lookmumnocomputer.discourse.group/t/can-i-add-1-4-jacks-to-this-eurorack-module/371/6) for some examples, and the linked document there for many more) and no standard pinout even if you’ve identified the jack type. Do you have a datasheet for the jack you’re using? Otherwise, plug in a cable and use your multimeter’s continuity tester to figure out what’s connected to what pin.

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