Switch Contact Closure; Usb Keyboard - Sound Devices PIX 220 User Manual And Technical Information

Switch Contact Closure

The 2.5 mm LANC connector can alternatively be con gured to function as a standard GPIO logic
connection by se ing the Setup Menu option System
Switch Momentary. When in either of these modes, the 2.5 mm TRS “"LANC”" connection is no
longer used as a LANC input and the recorder will no longer function with a LANC controller. The
wiring of the TRS connector is:
•• Tip: Switch Input
•• Ring: +5V LED voltage output (for illuminating an LED light for record tally)
•• Sleeve: Ground
When the Setup Menu option System
when the Switch Input (tip) is connected to ground (sleeve) and recording will stop when the Switch
Input (tip) is disconnected from ground (sleeve). When the Setup Menu option System
Start/Stop to Switch Momentary, recording will begin when the Switch Input (tip) is connected to
ground (sleeve) and recording will stop when the Switch Input (tip) is connected to ground (sleeve)
a subsequent time.
To use the LED output, connect an LED between the 2.5mm ring and sleeve with a series resistor.
The anode (+) of the LED should connect to the ring and the cathode (-) to the sleeve. A good starting
point for the resistor value is 220 ohms, but the value depends on the particular LED used. The ring
is internally connected to 5V when recording (and to 0V otherwise) with a series 100 ohm resistor.

USB Keyboard

The PIX recorders support standard USB keyboards connected to the USB A connector on the Right
Panel. The keyboard can be used to navigate menus, enter text, and start and stop recording. The fol-
lowing table shows common functions for an a ached keyboard:
Keyboards with integrated USB hubs are not supported.
F1 Displays the Setup Menu. Functions the same as the MENU button.
F2 Displays the File View. Functions the same as the FILES button.
F3 Displays the Audio View. Functions the same as the AUDIO button.
Menu Key Displays the Setup Menu. Functions the same as the MENU button.
Arrow Keys Up / Down keys navigate menus and move the highlight. Right / Left keys move cursor during text entry.
Return/Enter Confirms highlighted elements. Functions the same as pushing the Control Knob.
Escape Exits / cancels current dialog.
Page Up Moves the highlight to the top or bottom of displayed list elements.
Page Down
End Moves the highlight to the end of a list.
Home Moves the highlight to the beginning of a list.
PIX 220/PIX 240 User Guide and Technical Information
Rec Start/Stop to Switch Closure or
Rec Start/Stop to Switch Closure, recording will begin
Rec
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