Appendix B: Cable Information
Ethernet Connectors
SmartBits 600x/6000x Installation Guide | 107
Ethernet Connectors
RJ-45 Connector
LAN-3100A, LAN-3101B, LAN-3102A, LAN-3300A, LAN-3301A, LAN-3302A,
LAN-3306A, LAN-3320A, LAN-3321A, LAN-3324A, LAN-3325A, LAN-3327A
modules
80-pin Connector
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.
Table B-2 on page 108 shows the LAN-3150A 80-pin connector 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).
Table B-1. RJ-45 Connector Pin Assignments
Pin Signal
1 TRD 0 +
2 TRD 0 -
3 TRD 1 +
4 TRD 2 +
5 TRD 2 -
6 TRD 1 -
7 TRD 3 +
8 TRD 3 -
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