Studio Technologies 214 - Manual (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