Clear-Com HX System Frames - Manual (Page 176)

Figure 6-16 List of Ports on an IVC-32 Card
2) To display diagnostics for a panel, click on the down arrow button on the right side
of the entry for the required panel.
This opens a diagnostics display of cumulative error data for the panel and the
IVC-32 port it is connected to. Where data is presented for both panel and port
this can be used to diagnose whether any network problems are at the matrix or
panel end of the link.
3) Click Get Diagnostic Info to retrieve the current panel diagnostic data and
display it.
Figure 6-17 Panel Diagnostics Display
Jitter is a measure of the quality of the network connection. It represents the variation in
the time period with which audio packets are received. For example, if an audio packet is
expected every 10 milliseconds, but one audio packet is received 13 milliseconds after
another, this represents a jitter of 3 milliseconds.
If the jitter gets too high the panel starts to experience audio dropouts.
WAN mode panels can deal with larger jitter than LAN mode panels, and Internet higher
than WAN mode, as they use larger jitter buffers to smooth out the uneven arrival of audio
packets. However the downside of this is that the larger the jitter buffer, the longer the
audio delay.
• Average Jitter - the average packet interval in microseconds.
• Max Jitter - the highest packet interval measured in milliseconds.
176 Eclipse EHX Software User Guide