Cobalt Digital COMPASS 9220 Bidirectional ASI_MPTS Gateway - Manual (Page 30)

30 9220-UM V1.1
Additionally, when you select the Advanced view, a button to reset the Max Jitter measurement
becomes available. When pressed, it resets the measurement for all configured input streams.
Determining the Latency Settings
The data in the Advanced view is useful in determining the best Latency setting for the input
stream. The procedure is as follows:
1. Configure the desired input streams, using a high value for the latency setting –
100 milliseconds is a good starting point.
2. Make sure that your streams are operating as desired, and that your network is properly
set up.
3. Click on the “Reset Max Jitter Measurement” button in the Advanced view.
4. Let the system run for a period of time – a good choice would be 24 to 48 hours.
5. For each input, check the Max Jitter measurement in the Advanced view. For proper
operation, the Latency setting must be higher than the Max Jitter. We recommend adding
a 30% margin.
6. Reconfigure the latency value on each port to the optimum value. Note that changing the
latency setting causes a short stream interruption.
IP Inputs: Statistics Tab
The Statistics tab for the IP input ports contains a summary of each port status. There are two
sub-tabs: one for Ethernet 1, and another for Ethernet 2. The tab is depicted below:
Ethernet Port 1 Ethernet Port 2 Ethernet Port 1 Ethernet Port 2