MX392 versus MX393; MX392 wiring scheme

FAQ #2137 Updated January 29, 2013

Question:

What is the difference between the MX392 and MX393? Besides the cable not being terminated, your catalog says logic input/output capability. What does the logic offer me?

Answer:

The LED on the MX392 can be controlled remotely via two conductors in the MX392 cable.  Orange wire is LED In; Green wire is Logic Ground.  When Orange is connected to Green, the LED will illuminate.  NOTE: The operating voltage/current for the LED is supplied by phantom power...not by the Orange LED In wire.

 

The switch on the MX392 can provided a TTL signal change at the end of the MX392 cable. White wire is Switch Out; Green wire is Logic Ground.  When the MX392 switch is pressed, the White changes from +5 Vdc to 0 Vdc in relation to the Green.  When the MX392 switch is released, the White changes from 0 Vdc to +5Vdc in relation to the Green.

 

If neither feature above is of interest, use the MX393.

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