Studio Technologies announced that its new Model 394 GPI Interface and Model 395 GPO Interface are now shipping. First previewed at IBC 2025 in Amsterdam, the companion devices provide Ethernet-based general-purpose input (GPI) and output (GPO) functionality for broadcast, production, and live event applications.

The Model 394 supports two GPI signals, while the Model 395 provides two GPO signals. They can operate as a pair to transport one or two contact closures over a standard Ethernet network, or they can be used independently to meet specific workflow requirements. Both units feature lightweight aluminum tabletop enclosures, 100BASE-TX Ethernet ports with Power-over-Ethernet (PoE) support, and integration through Dante audio-over-Ethernet technology. Configuration is managed using Studio Technologies’ STcontroller software.

“When we previewed the Model 394 and 395 at IBC, the feedback was very positive,” said Gordon Kapes, president of Studio Technologies. “Users immediately saw the value of having simple, Dante-enabled GPI and GPO solutions that are reliable, network-friendly, and easy to integrate.”

In production and broadcast environments, GPI and GPO interfaces enable signal-based automation and control between devices. The Model 394 can be triggered by a video switcher or router to start or stop playback, switch sources, or activate recording. The Model 395 can indicate “on-air” or recording status and trigger tally or lighting systems.

The new interfaces expand Studio Technologies’ growing portfolio of Dante-enabled tools that help bridge traditional production infrastructure with IP-based workflows.

For more information, visit Studio-Technologies.com.