Multi-Tech Systems 40-01459-D0-001 - Manual (Page 53)

Troubleshooting 47
Chapter 6. T ROUBLESHOOTING
If your PCI ESCON Adapter fails to initiate successfully this chapter will provide you
with some general troubleshooting guidelines to help you identify and fix your
problem.
If after you have been through this troubleshooting chapter you are still unable to
make your adapter work properly please refer to the section titled “Help and Service
Information” on page 53 for information on obtaining help.
Hardware
The ESCON adapter includes two Light Emitting Diodes (LEDs) on the back edge of
the adapter. These LEDs are located just below the ESCON connector and can be
used to help isolate whether a problem is hardware or software related.
Each LED will illuminate in one of three colors. The top LED illuminates Red,
Yellow, or Green. The bottom LED illuminates Red, Orange, or Green. When the
server’s power is turned on both LEDs should always be illuminated. Table 6-1
summarizes the use of each LED.
Color \ LED Top LED Bottom LED
OFF Power Off Power Off
Yellow POST in Progress Emulation Loaded,
Channel Offline
Red POST Failed Emulation Not Loaded
Green POST Ran Successfully Channel Online
Table 6-1. Status LED Summary
As soon as the system is powered on, under normal operation the ESCON adapter
executes it’s own Power On Self Test (POST) and then loads the emulation firmware.
Follow the steps below to determine if the adapter has powered on successfully and is
operational.