Genlock

NOTE: Using genlock requires a DSMC2 Base Expander, DSMC2 V-Lock I/O Expander, DSMC2 Jetpack Expander, DSMC2 Jetpack-SDI Expander, or DSMC2 REDVOLT Expander. For more information, go to Input/Output Connectors.

Generator locking (genlock) is a tri-level signal used to synchronize video and audio systems. Genlock is based on SMPTE 296M and 274M. There are two (2) important genlock sync modes:

• Monitor Sync
• Sensor Sync

Monitor Sync

NOTE: Using genlock requires a DSMC2 Base Expander, DSMC2 V-Lock I/O Expander, DSMC2 Jetpack Expander, DSMC2 Jetpack-SDI Expander, or DSMC2 REDVOLT Expander. For more information, go to Input/Output Connectors.

Monitor Sync occurs when an incoming genlock signal is compatible with the monitor output frequency. Monitor Sync is achievable even if the camera is using another form of synchronization to sync the camera sensor.

1. Connect the genlock device to the camera:
   • DSMC2 Base Expander, DSMC2 V-Lock I/O Expander, DSMC2 Jetpack Expander, or DSMC2 Jetpack-SDI Expander: Connect the SYNC port (00B) on the expander to the device (green BNC) using a 3BNC-to-00 LEMO Sync Cable.
   • DSMC2 REDVOLT Expander: Connect the GENLOCK port on the expander to the device using a 75 ohm BNC cable.
2. Set up the frequency for the HD-SDI output (select Auto to automatically match the HD-SDI output to the current Project Time Base). For more information, go to Frequency.

   Monitor Sync is achieved automatically when an incoming genlock signal is compatible with the monitor output frequency. When Monitor Sync is achieved, the GEN indicator in the Lower Status Row illuminates green.

Required Cable

• DSMC2 Base Expander, DSMC2 V-Lock I/O Expander, DSMC2 Jetpack Expander, or DSMC2 Jetpack-SDI Expander: 790-0154, 3BNC-to-00 LEMO
• DSMC2 REDVOLT Expander: 75 ohm BNC cable (such as the RED HD-SDI Cable, P/N 790-0341)

Sensor Sync

NOTE: Using genlock requires a DSMC2 Base Expander, DSMC2 V-Lock I/O Expander, DSMC2 Jetpack Expander, DSMC2 Jetpack-SDI Expander, or DSMC2 REDVOLT Expander. For more information, go to Input/Output Connectors.

NOTE: HDRX^® is not available when Genlock Sensor Sync is enabled.

Sensor Sync is achieved when an incoming genlock signal is compatible with the monitor output frequency, project time base, and recording frame rate. In Sensor Sync mode, sensor timing is locked to the genlock signal. Sensor Sync requires the following synchronized settings:

To set up and enable Sensor Sync Mode, follow the instructions below:

1. Connect the genlock device to the camera:
   • DSMC2 Base Expander, DSMC2 V-Lock I/O Expander, DSMC2 Jetpack Expander, or DSMC2 Jetpack-SDI Expander: Connect the SYNC port (00B) on the expander to the device (green BNC) using a 3BNC-to-00 LEMO Sync Cable.
   • DSMC2 REDVOLT Expander: Connect the GENLOCK port on the expander to the device using a 75 ohm BNC cable.
2. Go to Menu > Settings > Setup > GPIO/Sync > Sync.
3. Select Genlock from the Sensor Sync Mode drop-down menu.

   

   Figure: Sync Settings

4. Set up the frequency for the HD-SDI output (select Auto to automatically match the HD-SDI output to the current Project Time Base). For more information, go to Frequency.

   The GEN indicator in the Lower Status Row turns green when a compatible genlock signal is present and genlock is enabled. The SYNC indicator in the Lower Status Row turns green when Sensor Sync is achieved.

Required Cable

• DSMC2 Base Expander, DSMC2 V-Lock I/O Expander, DSMC2 Jetpack Expander, or DSMC2 Jetpack-SDI Expander: 790-0154, 3BNC-to-00 LEMO
• DSMC2 REDVOLT Expander: 75 ohm BNC cable (such as the RED HD-SDI Cable, P/N 790-0341)