DUA1640-5AAA02
Powering On the Units 3-17
Figure 3-7 Correct Hub Connections Using the Port 24 and the MDI/MDIX
Switch
Powering On the Units When you have connected all of your equipme nt together, you are
ready to use your network.
You can power on the unit or the units in the stack in any order, and
can make your port connections at any time. After powering on the
hub, its Power/Self Test LED flashes for a few seconds while the hub
performs its self test. Afterwards, the LED lights green. If it does not,
refer to “Solving Problems With the Hub” on page 8-2.
Any information that you configure for the unit using management, is
retained when you power off the unit.
Spot Checks At frequent intervals, visually check that:
■Case vents are not obstructed
■Cabling is secure and not pulled taut
If you suspect there is a problem, refer to Chapter 8.