Appendix E: SMB-600/6000B Cables and Connectors
Ethernet Connectors
SmartBits System Reference
223
Ethernet Connectors
LAN-3150A Connectors
The LAN-3150A has two female 80-pin connectors, J1 and J2. The J1 connector is for the
first four ports. The J2 connector is for the second four ports.
The DUT should have the corresponding 80-pin female connector, and can be connected
to the LAN-3150A by using the two 12-inch cables that are supplied and recommended by
Spirent Communications.
The J1 and J2 connectors both carry one set of MII management signals. These signals can
be configured independently for each four-port DUT. However, for a single eight-port
DUT, the MII management signal from the J2 connector should be used and the
corresponding signal at the J1 connector should be ignored.
shows the LAN-3150A connector pin assignment for SMII and RMII.
Input
and
output
are identified in the left column as
I
and
O
respectively.
The J1 and J2 pin structures are exactly the same except for the port numbers (0, 1, 2, 3 for
J1; and 4, 5, 6, 7 for J2).
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