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Polarity on Opto's (3 replies)

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Today I received my new opto's, to replace the Orca 4-wire opto's (Gen6) for 3-wire opto's to the Ramps.

Mine are V19 1028 / TCST 2103 with a 3-wire flat cable which has 3 separate one-pin connector at the end.
Is there a specific order to plug them in the ramps ? I presume middle wire in the middle, but for the rest ?

The wires are marked :

1) dot dash
2 long dash
3 small text sentences , not readable on my age, not even with mg

Thomas

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