32CHAPTER 2: INSTALLING THE SWITCH
Solving Problems If the LEDs on the Switch indicate a problem, refer to Table 5 which
Indicated by LEDs contains a list of possible problems and suggested solutions.
Table 5 Problems indicated by LEDs
Problem | Suggested Solution |
A Power LED does not Check that the power cable is firmly connected to the
lightrelevant Switch unit and to the supply outlet. If the connection is secure and there is still no power, you may have a faulty power cord.
On
An Expansion Module Status LED flashes yellow
The relevant Switch unit has failed its Power On Self Test (POST) because of an internal problem. Contact your supplier for advice.
An unrecognized Expansion Module or Matrix Module is installed into the relevant Switch unit. You may need to remove the Module, or upgrade the management software used by the Switch to a version that recognizes the Module. Contact your supplier for further advice.
A link is connected and yet the Status LED for the port does not light
The Packet LED for a
The Packet LED for an Expansion Module is flashing even though there is no external traffic on this link
Check that:
■All connections are secure.
■The devices at both ends of the link are
■The connection uses
The
■If the
■If the
If you have a Matrix Module installed into your Switch, this is normal operation. Management software in the stack passes packets between units even if there is no other traffic activity.
