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Channel map in Figure 82below shows correct lineup with analog or non Pro:Idiom channels
between off air and Pro:Idiom programming.
Figure 82 - Correct Channel Mapping to Prevent P.I. Key Loss
15.3
EdgeQAM PID remapping
A number of edgeQAM products have been designed specifically to work in Pro:Idiom systems
and are known to correctly manage Pro:Idiom Key Management message PIDs including but
not limited to Technicolor’s QAM6 and Video Propulsion’s Floodgate. Check with other
manufacturers regarding their equipment.
Two other commonly used edgeQAMs from Harmonic Lightwave, the NSG9116 and the
NSG9000, are known to employ PID remapping schemes which can create issues in distribution
networks using Pro:Idiom if not configured properly. The port mapping method which, while it
is not strictly within the Pro:Idiom guidelines, does avoid PID reuse which has been shown to
break P:I keys.
When using Harmonic edgeQAMs in the paradigm mode the position of the UDP port in the
list of ports available for a given channel sets the first digit of the PID value.
If you pick the first available UDP port value for a given channel all the PID values will
start with one, if you pick the second available port value all the PID values will start with
two, etc.
