The following illustration shows the Lock Studio rear panel connectors.

In this documentation, the terms socket and plug are used for female and male connectors respectively.

For additional details of the connectors, see the Lock Studio Quick Start Guide that is supplied with Lock Studio and is available for download.

Lock Studio rear panel connectors

PoE Gigabit connector

Earthing point

SDI (Serial Digital Interface) input

Remote start

Remote stop

Ref Loop (Composite Video)

Vicon System Connector - Link

RCA sockets x 8

For information on all interfacing cables, see the documentation for your Vicon cameras.

PoE Gigabit connector

The Gigabit Ethernet Port 8-pin RJ45 socket connects to an appropriate Vicon-supplied Ethernet switch that is also connected to Vicon cameras and the Vicon host PC directly, or through further switches. For examples of different topologies, see Vicon system configuration and connection examples.

As well as carrying all the communications to the appropriate Vicon software, the Lock Studio also receives its power over the same connections. Additionally, this port also transmits synchronization and time-stamping through special Ethernet packets to all other connected Vicon peripherals.

Earthing point

Dedicated earthing point . Ensure this is used to ground the Lock Studio.

Important
The earthing point is provided to solve ground loop issues that can degrade signal quality on connections to third-party equipment. It is not intended for earth safety.

SDI (Serial Digital Interface) input

Fixed 75 Ω (ohm) terminated BNC input for connecting to Standard Definition (SD), High Definition (HD) and 3G SDI broadcast digital video signals.

Used to genlock to external video broadcast signals and to extract embedded timecode data. Lock Studio can be phased with respect to the selected input broadcast signal in increments of 37 nS through a whole frame period. See also Vicon Lock genlock support information.

Remote start/stop connectors

To trigger capture by the Vicon system from a remote control device, you must configure your Vicon software to use the device connected to the Remote Start and Stop sockets; for details on doing this, see the documentation for your Vicon software. For details on enabling third-party remote devices to trigger your Vicon system, see Add remote triggering devices to a Vicon system.

Remote start This RCA socket provides the external input for the start of capture, which can be activated by momentarily connecting this input to ground through either a mechanical or electronic switch. Capture is started on the first frame boundary after this event is detected.
Remote stop This RCA socket provides the external input for stopping capture, which can be activated by momentarily connecting this input to ground through either a mechanical or electronic switch. Capture is stopped on the first frame boundary after this event is detected.

Genlock and timecode connectors

For details on using external Genlock and Timecode devices to synchronize your Vicon system to an external video system, see Add genlock/timecode devices to a Vicon system.

Important
If the Vicon Lock Studio is the only device, or the last device in the chain, the Ref Loop connection that is not being used for signal output must be terminated using a 75 Ω (ohm) terminator.

Ref Loop (Composite Video) Two BNC sockets provide loop-through connection to an external composite video signal, which may carry VITC (Vertical Interval Timecode), thus allowing genlocking. This video source is usually referred to as the house reference or the primary video source. This connection allows Lock to synchronize to analog SD (standard definition) bi-level and analog HD (high definition) tri-sync video sources. Note that VITC is only supported by the former.
LTC In The XLR socket provides the balanced input for LTC (Longitudinal Time Code) to the Lock.
The timecode is only valid when it is correctly frame-aligned to the accompanying analog SD or HD composite video signal.
VESA Stereo In The 3-way, mini-DIN socket provides the input to the VESA Stereo In signal. When selected as the genlock source by the appropriate Vicon software, the Lock unit locks to this signal.
LTC Out The BNC socket enables output of a single-ended LTC signal (23.98, 24, 25, 29.97 and 30 fps) through a 100 Ω (ohm) resistor.
The timecode is only valid when it is correctly frame-aligned to the accompanying analog SD or HD composite video signal.
VESA Stereo Out The BNC socket provides a TTL 50:50 duty cycle signal that allows external video systems to lock to the Vicon system.

For details about using external VESA Stereo signal to synchronize your Vicon system to an external video system, see Add VESA stereo to a Vicon system.

Link Input/Output (IO) connectors

Vicon System Connector - Link The Link socket can be made to be an input under software control. Configured this way, it enables up to three Lock units to be synchronized with each other. When you expand a Lock system with additional Lock units, the Lock with a reference video signal or VESA input signal is made the sync source by the appropriate Vicon software. In this case the software controls which unit is primary and which unit(s) are secondary. The secondary unit(s) do not transmit the Vicon Ethernet sync and timestamp packet when acting in this mode.

Sync output connectors

Eight RCA sockets provide sync outputs to external third-party devices for synchronizing to the Vicon system.

Each sync output consists of a configurable TTL-type drive signal which is set up through the appropriate Vicon application software. Each output can be configured individually.

There are two signal types, one for repetitive signals and one for the duration of capture. A typical signal configuration for a repetitive signal allows for a signal at frame rate or multiples and sub-multiples of the Vicon system capture frame rate to be set up. A duration event allows the signal to be active during the capture period. Both signal type setups allow for a delay of up to one frame to be programmed and the setting of the polarity of the signal. The mark space ratio can be set with the former type. For more information, see Add synchronized output devices to a Vicon system.

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