Blackmagic Design GPI and Tally Interface
for Adding 8 Tally Relay Contacts to an ATEM Switcher


Our Price: $470.25
List Price: $495.00
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The GPI and Tally Interface from Blackmagic Design provides 8 contact closure inputs and 8 contact closure outputs for connecting to ATEM switchers and Videohub routers. Tallies will be displayed when connected to an ATEM switcher to indicate their "on-air" status and you can even connect multiple interfaces together to increase the number of inputs and outputs. GPI and Tally Interface also works as a Videohub control panel without buttons and LEDs so you can make your own! Now anyone can connect to Videohub routers to control cross-points.

Blackmagic Design GPI and Tally Interface Specifications:


  • Contact Closure: 25 pin D-type connector providing 8 opto isolated inputs and 8 relay contact closure outputs
  • Inputs: Optical isolators triggered by connection to ground. Max 5V at14mA.
  • Outputs: Mechanical relay contact closure to ground. Max 30V at 1A.
  • Ethernet: 10/100 BaseT with loop through for connecting to other ethernet-enabled equipment
  • Computer Interface: 1 x USB 2.0 high speed interface for configuration and firmware updates


  • Software Included: Configured via ATEM Switcher Utility
  • Internal Software Upgrade: Firmware built into software driver. Loaded at system startup or via updater software
  • Operating System: Microsoft Windows 7 and Apple Mac OS X
  • Power Supply: 12V power supply included with international socket adaptors for all countries
  • Product Warranty: 12 Months Limited Manufacturer's Warranty
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