Studio-technologies 214 User Manual download pdf (Page 32)

Issue 1, July 2014 Model 214 User Guide

Page 32 Studio Technologies, Inc.

Appendix B

The following list provides details on the 3-pin header connectors located on the Model

214’s printed circuit board. Shown are both reference numbers and associated functions.

P2: Microphone Input

Pin 1 common

Pin 2 high (+)

Pin 3 low (–)

P3: External 12 Volt DC Input

Pin 1 – DC

Pin 2 + DC

Pin 3 not used

P5: Headphone Output

Pin 1 common

Pin 2 left channel (tip)

Pin 3 right channel (ring)

P7: Relay Contact 1

Pin 1 common

Pin 2 normally open

Pin 3 normally open

Note: Pins 2 and 3 close (short) when

main pushbutton is active.

P8: Relay Contact 2

Pin 1 common

Pin 2 normally open

Pin 3 normally open

Note: Pins 2 and 3 close (short) when

talkback pushbutton is active.

P10: Remote Switch Inputs

Pin 1 common

Pin 2 main pushbutton

Pin 3 not used

P11: Remote Switch Inputs

Pin 1 common

Pin 2 talkback pushbutton

Pin 3 not used

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Studio-technologies 214 User Manual Page 32