Digital Equipment RouteAbout Access EW, Installation Manual

Page: 59 / 80

Problem-Solving Using the LEDs A-5
Symptom Probable Cause Corrective Action
The module is not
rec5.0 V. Check the power LED on the
DEChub 90 or DEChub 900
MultiSwitch power supply.
Power LED
is off. (Cont’d) If the power LED on the
DEChub power supply is
off, then there is a
problem with the DEChub
power supply. See the troubleshooting
procedures in the
DEChub 900
MultiSwitch Owner’s manual or
DEChub 90 Owner’s Guide.
If the power LED on the
DEChub power supply is
on and the other power
LED components are off,
then the DEChub has a
power problem. See the troubleshooting
procedures in the
DEChub 900
MultiSwitch Owner’s manual or
DEChub 90 Owner’s Guide.
If the power LED turns on
when reseated in the
same slot, then the
RouteAbout Access EW
was not properly seated. Make sure the RouteAbout
Access EW is properly seated
in the slot.
If the power LED turns on
when reseated in another
slot, then the problem is
with the DEChub. See the troubleshooting
procedures in the
DEChub 900
MultiSwitch Owner’s manual or
DEChub 90 Owner’s Guide.
If the module does not
turn on in a known good
slot, then the module is
defective. Replace the RouteAbout
Access EW .
Module OK
LED is off. Self-test failed. If the LED does not light after 5
seconds, reseat the module to
repeat the self-test. If the self-
test fails again, replace the
module.