Here is the table of connector allocation depending on the data scheme, for differential ECL:
IQZ and X bits are always read from left to right is the constellation mappings. Here is an example of
IQZ mapping in 8PSK:
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HIGH DATA RATE RECEIVER
HDR-4G+ USER'S MANUAL
L
ID
ABEL
ECL IN 1
J52
ECL IN 2
J53
ECL IN 3
J54
ECL IN 4
J55
ECL IN 5
J56
Table 16: connectors allocation, Differential ECL
Q
Z
I
Figure 71: IQZ mapping example
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