Q-Logic 59021-05 B manual Small Form-Factor Pluggable SFP Transceivers, Port LEDs

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2 – General Description Fibre Channel Ports

2.2.1

Small Form-Factor Pluggable (SFP) Transceivers

An SFP transceiver, like the one shown in Figure 2-5, converts electrical signals to and from optical laser signals to transmit and receive data. SFP transceivers plug into the ports; duplex fiber optic cables plug into the transceivers which then connect to the devices. A port is capable of transmitting at 1 Gbps or 2 Gbps; however, the transceiver must be capable of 2 Gbps for the port to deliver at that rate.

The SFP transceivers are hot swappable. This means that you can remove or install an SFP transceiver while the switch is operating without harming the switch or the transceiver. However, communication with the connected device will be interrupted. Refer to Section 6 Removal/Replacement for information about installing and removing SFP optical transceivers.

Figure 2-5. SFP Transceiver

2.2.2

Port LEDs

Each data port has its own Logged-In LED and Activity LED as shown in Figure 2-6. The Logged-In LED indicates whether the port and its connected device are logged into the fabric, or if it is connected to another switch and they are segmented. The Activity LED indicates the frequency at which the port receives or transmits frames.

Logged-In LED	Activity LED
(Green)	(Amber)

Figure 2-6. Port LEDs

59021-05 B 2-5