Sound Devices PIX 220i - Manual (Page 48)

External Control
Triggering Recording from External Timecode
The PIX 240i can be configured to record only when running timecode is present on the 5-pin
LEMO, the Timecode BNC, or embedded timecode on the SDI or HDMI input. The PIX 220i can be
configured to record only when running timecode is present on the HDMI input. The device that is
sending timecode to the PIX recorder should be configured to send running timecode when record-
ing and stationary timecode when not recording (often referred to as “Rec Run”). To make the PIX
recorder record automatically when running timecode is sensed on the timecode input:
1. Set Setup Menu option System  Rec Start/Stop to Timecode
2. Make sure that the device that is sending timecode is configured to send stationary timecode
while stopped and running timecode while recording.
3. Optional: To cause the PIX 240i to stop recording both when stationary LTC timecode is
received and when LTC timecode signal is absent, set Setup Menu option Timecode/Sync
 Timecode Mode to Ext TC (LTC Halt) .
Triggering from external timecode will not cause the PIX 240i to automatically stamp external time-
code to recorded files. The timecode stamped to files is determined by the setting Timecode/Sync
 Timecode Mode
Triggering Recording from SDI Flag Bits
Start and stop flags embedded in the SDI signal from some cameras can be used to start and stop
recording of the PIX 240i. To enable this feature, set Setup Menu option System
 Rec Start/Stop to
the SDI Flag option that refers to the manufacturer of the connected camera.
LANC
The LANC protocol can be used to start and stop recording of the PIX. A standard LANC controller
can be plugged into the 2.5 mm LANC connector on the right panel of the PIX recorder. When Setup
Menu option System
 Rec Start/Stop is to LANC In, the PIX recorder will follow commands from
the LANC controller. LANC commands recognized by the PIX recorder are Start and Stop recording.
To send LANC commands from a controller to both a camera and a PIX recorder (or to use more
than one PIX recorder), parallel the LANC signal with a Y-cable running to both the camera and the
PIX. Set the Setup Menu option System
 Rec Start/Stop to LANC (parallel) for any paralleled PIX
units.
Switch Contact Closure
The 2.5 mm LANC connector can alternatively be configured to function as a standard GPIO
logic connection by setting the Setup Menu option System
 Rec Start/Stop to Switch Closure
or 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
PIX 220i and PIX 240i Video Recorder User Guide
46
v. 3.52 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.
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