Clear-Com EclipseHX Guia do Utilizador descarregar pdf (Página 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.

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