Teradek Prism Rack v1 (853/873)
firmware v1.2
Teradek · Released Feb 3, 2021 · First seen Jul 11, 2026
v1.2 is not the latest firmware for the Teradek Prism Rack v1 (853/873): the current version is v2.25.20261021 (October 21, 2026). Go to v2.25.20261021
What's in this update
Teradek Prism Firmware Version 1.2
New Features
- Added RTSP support for encoders
- Added RTSP support for decoders - for best performance, setting protocol to TCP is recommended
- Added audio mute option
- Added Wowza Cloud support
- Added time/timecode OSD burn-in text options
Changes and
Improvements
- Overall system stability
improvements
- Further improved SRT stream robustness
- Added IP address of currently connected card in chassis overview screen
- Mute audio when disabled to allow streaming to RTMP destinations
- Automatically disable adaptive bitrate when Bonding stream buffer is set to 0 for low latency streaming
Bug Fixes
- Fixed potential crashes/memory leaks for multiple system processes
- Encoding frame rate could degrade after 7+ days
- Core control connection sometimes failed to reconnect after interruption
- Decoder stopped processing audio if encoder video format changed
- Cards could fail to reboot after a firmware update
- Web UI was not displayed correctly in Internet Explorer
- Fixed some front panel display issues
- Network info was not displayed under the main status tab
- Web UI password could not be set back to default 'admin' value
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