Blackmagic Design GPI & Tally Interface

  • Displays tallies for indicating the on-air status of video signals
  • Indicates On-air Status
  • For ATEM Switchers / Videohub Routers
  • 8 Contact Closure Inputs & Outputs
  • Included break-out cables for Sony CCU’s


The Blackmagic Design GPI & Tally Interface is designed to work with ATEM production switchers and displays tallies to indicate the on-air status of video signals. It features 8 contact closure inputs and 8 contact closure outputs for connecting to ATEM switchers and Videohub routers for operation. Additionally, the GPI & Tally Interface can be used with multiple interfaces to increase the number of inputs and outputs.

Furthermore, our Set includes a special cable set for the integration with Sony broadcast CCU’s.

In the Case
  • Blackmagic Design GPI & Tally Interface
  • 25 pin D-typ > 8x RCA female
  • 5x 25 pin D-type > XLR3M, XLR3F, RCA male
  • AC adapter
  • Hard case


Contact Closure

25 pin D-type connector providing 8 opto isolated inputs and 8 relay contact closure outputs.

Computer Interface

1 x USB 2.0 high speed interface for configuration and firmware updates.


Optical isolators triggered by connection to ground. Max 5V at 14mA.


Mechanical relay contact closure to ground. Max 30V at 1A.


10/100 BaseT with loop through for connecting to other ethernet enabled equipment.

GPI and Tally Interface


Software Included

Configured via ATEM Switcher Utility.

Internal Software Upgrade

Firmware built into software driver. Loaded at system startup or via updater software.

Operating Systems

Mac iconMac 10.14 Mojave,
Mac 10.15 Catalina or later.
Windows IconWindows 8.1 and 10.

Power Requirements

Power Supply

12V power supply included with international socket adaptors for all countries.

Physical Specifications

GPI and Tally Interface

Environmental Specifications

Operating Temperature

0° to 40° C (32° to 104° F)

Storage Temperature

-20 – 60 degrees celsius

Relative Humidity

Up to 95%