aTCA-3710 User's Guide
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3.2 Zone 2 Backplane Interfaces
ATCA specifications define Zone 2 for Fabric, Base and update channel interface interconnections. The
Base Interface port is compliant to 1000BASE-T Ethernet. Thirteen Base Interface ports from the
backplane are connected to the Ethernet switch in the blade. Through the switch, the Base Interface
traffic goes to the LMP for necessary processing. The Fabric Interface in aTCA-3710 blade can connect
to up to thirteen boards in the chassis. The thirteen Fabric Interface ports are connected to the high
capacity onboard Ethernet switch, where the port speed is configurable to 1Gbps/10Gbps/40Gbps in the
form of one SerDes lane at 1Gbps or 4 SerDes lanes at 2.5Gbps each or 4 SerDes lanes at 10Gbps,
each to be compliant with Option 3/9, 10GBase-KR, 4x10GBase-KR or 40GBase-KR4 (40G Ethernet)
respectively.
