1–General Description
Fibre Channel Ports
59265-02 B 1-5
Port LEDs
Each port has its own Logged-In LED (L) and Activity LED (A) as shown in
Figure 1-4.

Figure 1-4. Port LEDs

Port Logged-In LED (Green)

The Logged-in LED indicates the logged-in or initialization status of the connected
devices. After successful completion of the POST, the switch extinguishes all
Logged-In LEDs. Following a successful port login, the switch illuminates the
corresponding logged-in LED, indicating that the port is connected and able to
communicate with the attached devices. The Logged-In LED remains lit as long
as the port is initialized or logged in. If the port connection is broken or an error
occurs that disables the port, the Logged-In LED is not lit. For more information
about the Logged-In LED, refer to “Logged-In LED Indications” on page4-7.

Port Activity LED (Green)

The Activity LED indicates that data is passing through the port. Each frame that
the port transmits or receives illuminates this LED for 50 milliseconds, which
makes it possible to observe the transmission of a single frame.
Transceivers
The QLogic 5800V Series switch supports SFP optical transceivers for the SFP
ports, and XPAK optical transceivers or XPAK stacking cables for the XPAK ports.
A transceiver converts electrical signals to and from optical laser signals to
transmit and receive data. Duplex fiber optic cables plug into the SFP
transceivers, which then connect to the devices. An SFP port is capable of
transmitting at 1, 2, 4, or 8Gbps; however, the transceiver must also be capable of
transmitting at these rates.
Logged-In LED Activity LED
Logged-In LED
Activity LED