# Custom Sensor Wiring

The EPOC Flex is flexible in wire position and number of sensors. By default all 32 sensors + 2 references are already fitted into the two connectors. As shown in the image below, 16 blue sensor wires + CMS a black wire is on the left. 16 red sensor wires + DRL a black sensor wire is on the right. The connector has one empty position above the references. EMOTIV has wired up the electrodes so that the electrode name A-Q matches the pin position shown below. 

![](https://1584734385-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LIeRq0woQQZog4Wx9KA%2F-LvOQqWxkBugJUFjwetk%2F-LvOQyPDgfXPOznL-QxH%2Fcontroller-assembly-v02-min.png?alt=media\&token=e9c90c59-ac47-4b07-835a-cfdbb8aed71a)

You can remove un-needed sensors if your experimental montage requires this. It is recommended to use a thin flat screwdriver or tweezers to lift up the plastic tab shown below.

![](https://1584734385-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LIeRq0woQQZog4Wx9KA%2F-M3hew6LG_-JK-q0nsl9%2F-M3hhvQknxu7EY9XYCql%2Fflex-tweezers-connector.jpg?alt=media\&token=30b4f007-7453-44db-822f-115e35243348)

Lifting this tab will release the crimp locking mechanism. 

![](https://1584734385-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LIeRq0woQQZog4Wx9KA%2F-M3hew6LG_-JK-q0nsl9%2F-M3hi4eWm08nvUgVsr22%2Fflex-pulling-wire-2.jpg?alt=media\&token=70468688-79ac-454e-9e4c-d254ad753fc4)

Pull on the wire until the gold of the crimp starts to be shown.

![](https://1584734385-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LIeRq0woQQZog4Wx9KA%2F-M3hew6LG_-JK-q0nsl9%2F-M3hiOXg1_cGwL41VTO_%2Fflex-pulling-wire-removed.jpg?alt=media\&token=0d42bc02-0a24-4937-88f6-2998a6dc40b9)

The reference wire shown above is removed.

![](https://1584734385-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LIeRq0woQQZog4Wx9KA%2F-M3hew6LG_-JK-q0nsl9%2F-M3hiWSXsEnwun4IKKZg%2Fflex-reinserting-wire.jpg?alt=media\&token=ed80910f-374e-47fa-9308-6908f1b14031)

Reinserting the wire into the connector make sure the crimp lock is facing upwards when inserting and pull on the wire to ensure it is locked in place.