46 Cable, Port, and Pinout Information
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Pin Connections for SFP Interfaces
Figure 3-2 illustrates an SFP connector, and Table 3-2 shows the pin assignments for an optional
SFP connector.
Figure 3-2. SFP Connector
4TxRx 2-
5 TxRx3+
6TxRx 3-
7TxRx 4+
8TxRx 4-
Table 3-2. SFP Pin Connections
Pin Use
1 Transmitter ground (common with
receiver ground)
2 Transmitter fault
3 Transmitter disable; laser output disabled
on high or open
4 Module definition 2; data line for serial ID.
5 Module definition 1; clock line for
serial ID.
Table 3-1. RJ-45 Pin Connections for 10/100/1000 Base T
Pin Use
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