Table 2-8. SFP Pin Connections
Pin No Use
15Receiver power supply
16Transmitter power supply
17Transmitter ground (common with receiver ground)
18Transmitter
19Transmitter inverted data in
20Transmitter ground (common with receiver ground)
Power Connectors
The PowerConnect 28xx is powered by using the AC internal power supply.
Internal Power Supply Connector
The PowerConnect 28xx supports a single internal power supply to provide power for switching operations. The internal power supply supports input voltages between 100 and 240 VAC. The AC power connector is located on the back panel of the switch.
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Dell PowerConnect 28xx Systems User Guide