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GigWorks MKII-16 Switch Model MKII-BASE16
Installer's/User's Manual 59003-01 Rev. A
General Description 1-9
General Description
Following a normal power-up with the Continuous Test button in the OFF
position, the Heartbeat LED blinks about once per second to indicate that the
Switch passed the POSTs and the internal Switch processor is running.
Refer to Section 3 (Diagnostics/Troubleshooting) for more information about
Heartbeat LED error codes.
Logic Power Good (Green)
This LED is ON when any Power Supply is delivering power within normal
limits to the Switch logic (the Power Button must also be depressed). If you have
redundant power supplies, the Logic Power Good LED will stay ON even when
one power supply stops working and the other picks up the load. The LED will go
OFF when no supply is delivering the proper logic voltages.
Power Supply Fail LED (RED)
This LED is normally OFF. It comes ON only when one supply in a redundant
configuration fails but the other supply has picked up the load. When this LED is
ON, it is a signal to look at the Power Supply LEDs on the back of each Power
Supply to determine which supply failed. Refer to Figure 1-4 for the location of
the power supplies and their LEDs. This LED is not meaningful in a system with
only one Power Supply.
Over Temperature LED (Red)
Not used. OFF.
Port Logged-In LED (Green)
Each port has its own Logged-In LED.
Initially (immediately after the Switch successfully completes the POST, the
Switch holds all Port Logged-In LEDs OFF (no light). They each remain OFF
until their connected Fibre Channel Node Port (N_Port) or Node Loop Port
(NL_Port) is able to successfully perform a Fibre Channel Fabric Login. The
attached node initiates the login process. Following a successful login on a
particular port, the Switch turns the Port Logged-In LED ON (lit) for that port.
This shows that the port is properly connected and able to communicate with its
attached device. The LED for this port remains ON as long the port is still logged
in.
If the established link is broken (a fiber opens or the connected port goes out of
service), the Port Logged-In LED is shut OFF and the N or NL_Port device will
try to regain its logged in status. If the login is once again established, the Switch
turns the Port Logged-In LED back ON and communication continues.
Because the attached nodes initiate the Fibre Channel Login process it is
important to have the Switch operating before the attached nodes are
powered up. Some nodes only try to perform a Fibre Channel Login one