Ac Coupling Of 10G_Kr_Tx Signals; Figure 12: 10G Ethernet Ac Coupling - Backplane System; Figure 13: 10G Ethernet Ac Coupling - Direct Cable; Figure 14: 10G Ethernet Ac Coupling - Phy On Carrier - Advantech SOM-5992 Design Manual

2.5.3 AC Coupling of 10G_KR_TX Signals

Situation A:
Backplaned system (eg VPXR, CPCI, ..)
Coupling is at receiver, in this case on both modules at receive pair. No coupling on carrier.
Figure 12 : 10G Ethernet AC coupling – backplane system
Situation B:
Direct attached module-to-module connection.
Coupling is at receiver, in this case on both modules at receive pair. No coupling on carrier.
Figure 13 : 10G Ethernet AC coupling – direct cable
Situation C:
PHY on Carrier
Only in this situation the coupling is on the Carrier (at PHY). But this situation is not the only primary
function for KR interface (backplane metallic connection).
Figure 14 : 10G Ethernet AC coupling – PHY on Carrier
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