Using External Reference (Ref) For Sdi Playout - Telestream Lightspeed Live Capture User Manual

Managing Video Sources
276
Managing System Settings

Using External Reference (REF) for SDI Playout

Lightspeed Live Servers manufactured beginning October 2022 with Corvid 44, Corvid
88, and 12G SDI video cards have an additional connector intended for timecode
reference. This LTC timecode reference connector has been added at the far right of the
card. The reference connector (labeled R) previously used for LTC on these cards can be
used for a Bi-Level or Tri-Level Sync signal.
This Reference connector can be used to synchronize looped-through outputs from
Live Source Manager to external reference in Live Capture.
Lightspeed Live Servers so-equipped display the External Reference Input control in
the System Settings panel.
When External Reference Input is enabled, the Ref port reads a black burst / Bi-Level /
Tri-Level Sync signal, as opposed to analog LTC signal. The LTC port reads the analog
LTC signal. If the External Reference Input is disabled, then the system is configured for
Reference input (R) to accept LTC, and the LTC input is ignored.
Restart the Lightspeed Live Server to make this change take effect.
For Ref and LTC connection details, see Making Data and Signal
Lightspeed Live Capture User Guide
Connections.