Sound Devices 970 - Manual (Page 43)

970 User Guide
37
Ext
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System Menu
The System Menu provides quick access via the web browser to the 970 System menu options. Menu
settings are displayed and can be edited directly from the web browser.
Triggering Recording from External Timecode
The 970 can be configured to start recordings when incoming timecode begins rolling and stop when
it becomes stationary. This is generally referred to as “Record Run” timecode. The master timecode
device should be setup in this manner. To configure the 970 to follow Record Run commands:
1. Set Setup Menu option [Remote Control - Rec Start/Stop] to Timecode.
2. Make sure that the device that is sending timecode is configured to send station-
ary timecode while stopped and running timecode while recording. To cause the 970
to stop recording when linear timecode signal is absent (disconnected), set Setup Menu option
[Timecode/Sync - Timecode Mode] to Ext TC (LTC Halt).
3. Some cameras do not send the correct timecode in the first few seconds of a recording, or
they send short bursts of timecode causing the 970 to record short unintentional files or incor-
rect timecode values. The [Timecode/Sync - Auto Record Hold Off] feature is designed to
eliminate these issues. When a hold off value is applied, the 970 will begin capturing the mo-
ment timecode begins rolling but will only go into record if a valid timecode signal is present
after the hold off time has elapsed.
The 970 (and many other Sound Devices products, including the rack-mount PIX video recorders)
have Freerun Auto Mute and 24h Run Auto Mute timecode modes. These modes mute timecode
output when the unit in Stopped mode (i.e. not recording or playing back). This allows the unit to
trigger other units with timecode as if they are in a Rec Run timecode mode, while maintaining run-
ning timecode value. ( See “Timecode Modes”, page 26 )
Triggering from external timecode will not cause the 970 to automatically stamp exter-
nal timecode to recorded files. The timecode stamped to files is determined by the setting
[Timecode/Sync - Timecode Mode]
GPIO (General Purpose Input / Output)
The 10-pin Phoenix connector provides six GPIO logic points. These can be used as simple-closure
inputs, and to drive LEDs or relays. The following table lists the pin assignments of the GPIO con-
nector.
Pin Function
- (-) Ground. Provides access to ground for triggering logic-low connections.
1 REC Input. Triggers 970 record.
2 Play Input. Triggers 970 play.
3 Stop Input. Triggers 970 stop.
4 (unused)
5 (unused)
6 REC Output. Activates upon 970 record.
7 Play Output. Activates upon 970 play.
8 Stop Output. Activates upon 970 stop.