When using PRS-4OMI4 in a Praesideo system, there might a delay and jittering when an announcement is made from one NCO to the other NCO
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Possible causes and solution(s)
Problem
The problem was caused by older OMNEO firmware within the OMI’s.
Though the Praesideo software in the OMI’s was relatively up-to-date (4.37), the OMNEO firmware was not. Unfortunately, updating the Praesideo software through the optical bus does not also update the OMNEO firmware as this is a completely different path (OMNEO is updated through the Ethernet connection of the OMI).
Solution
Due to some issues with OMNEO Firmware Update Tool v5.40 not working with unsigned firmware files (and the OMNEO firmware files are unsigned), it’s recommended to use OMNEO FWUT that comes with the Praesideo software folder. This version can be found on the Praesideo software folder then the folder 'Tools' , 'PRS-4OMI4 config tools'.
- Install the 'SetupOMNEOfirmwareUploadTool(64).msi'.
- Install the 'PRS-4OMI4 Network Firmware Vx.xx.xxxx.msi'.
- Open the OMNEO firmware upload tool.
- Select the PRS-4OMI4 units that needs the update.
- Click on 'Upload'
- Select the needed firmware file
- Click start.