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eSync (retired)

Synchronization and Time Code for your motion capture data, link up to almost any signal or source. Only one eSync is needed per mocap system. Learn More ➝

eSync Drawing


Compatible Products

Prime Series
Prime Series
ARENA for Body & Prop Mocap
Body & Prop Mocap
Expression for Face Mocap
Face Mocap
Tracking Tools for 6DoF Object Tracking
Tracking Tools
6DoF Object Tracking
Camera SDK
Camera SDK

Tech Specs

Size & Weight

  • Width: 5.47 inches (138.9 mm)
  • Height: 1.61 inches (40.9 mm)
  • Depth: 3.64 inches (92.5 mm)
  • Weight: 13 ounces (0.4 kg)
eSync size measurements


  • IEEE 802.3af-2003 PoE
  • Optionally, use the included 12V @ 0.5A power supply (US/EU-compatible) if no PoE port available

Ethernet Port

  • 100BASE-TX Ethernet
  • Cat6 Ethernet cabling (Cat5/Cat5e/etc not supported)

Status LEDs

  • Per port activity status
  • Master time
  • External lock
  • Ethernet link status
  • Ethernet activity

Recording Control

  • Start/stop trigger
    • Rising edge
    • Falling edge
  • High gated
  • Low gated

Common Sync Parameters

  • Max freq : 50 kHz
  • Min freq : 10 Hz
  • Divider ( 1:1 to 1:256 )
  • Sync modes
    • Rising edge
    • Falling edge
    • Either edge
  • Sync Offset (up to one frame period)
  • Sync Rate : 10 to 250 Hz

Sync Input Sources

  • Internally generated
  • Video Genlock
  • SMPTE Time Code
  • External digital inputs
    • Isolated
    • Hi-Z
    • Lo-Z

External Sync Input

  • Isolated
    • Opto-isolated, (LV)TTL compatible
    • VIL (max) : 0.8V
    • VIH (min) : 2.5V
    • VIH (max) : 13V
  • Hi-Z
    • VIL (max) : 0.8V
    • VIH (min) : 2V
    • VIH (max) : 5.0V
    • ZIN : >100Kohm
  • Lo-Z
    • VIL (max) : 0.8V
    • VIH (min) : 2V
    • VIH (max) : 5.0V
    • ZIN : 50 or 75 ohm, switch selectable

Sync Out Sources

  • Internally generated
  • OptiHub output
  • Video Genlock
  • SMPTE Time Code
  • External digital inputs, (Isolated, Hi-Z, Lo-Z)
  • Recording active, level for duration
  • Recording active, pulse per frame
  • Exposure periods
  • Polarity
    • Normal
    • Inverse

External Sync Outputs

  • LVCMOS 3.3V
  • IOH (max) : -8mA
  • IOL (max) : 8mA

In the Box

  • 1 eSync Part number: OPTESY
  • 1 12V universal power supply (US/EU-compatible)
  • 2 Mounting tabs (removable)
  • 3 BNC male to RCA female adapters
  • 4 Rubber feet
  • 4 Velcro straps
  • 1 eSync quick start guide


Frequently asked questions about motion capture, system setup and licensing.

View FAQs

Contact Support


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To create a new support ticket, please use the submission form below.

OptiTrack support requires a proof of warranty in the form of a hardware serial number, unexpired license number, or order number. Please input this information into the form so that we can assist you more quickly.

All users can visit the help desk web portal, to browse the Knowledge Base as well as past support tickets.

License Tool

Activate My License Help

Re-submitting your registration information will:

  • Update your e-mail address
  • Re-send files to your e-mail address

Use a device serial number from a Hardware Key.

Software licenses can only be activated once.

Your license cannot be transferred to a different serial number once activated.

For more information, please see the Licensing & Activation FAQ.

Check My License Help

What happens when my license expires and updates are not purchased?

  • The customer will no longer have access to updates or new releases of the software.
  • The version of the software for which the customer's license was originally valid will continue to work.

For more information, please see the Licensing & Activation FAQ.