Owner`s manual

6–1
6
Problem Solving
This chapter provides problem solving information for the DEChub 900 MultiSwitch
hub and its power system.
Use Table 6–1 as a guide to determine the probable cause and the suggested solu-
tion to problems that you may encounter.
Table 6–1: Problem Solving the DEChub 900 MultiSwitch
Symptom
Probable Cause Corrective Action
The two LEDs on
the power supply
module are off.
The hub is not receiving
proper power.
Check the ac power connection and
verify that the ac outlet is working.
Check the ac power connector (see
Figure 1–3).
Check the power connection to the
hub. If the problem still exists,
replace the power supply module.
Either of the two
power supply
LEDs is off.
The power supply is
faulty.
Replace the power supply.
The backlighting
on the Hub Status
Display is not illu-
minated.
The Hub Manager is not
receiving power.
Remove the front cover and check
that the cables are attached and
seated to the connectors.