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IOLAN SDS/SCS/STS/MDC User’s Guide, Version 4.0 409
Troubleshooting Appendix I
I
Introduction
This chapter provides information that can help resolve problems with the IOLAN.
Hardware Troubleshooting
The Power/Ready LED stays red after a boot (See Power/Ready LED Labels on page 410 for the
LED label on your IOLAN unit.):
If the IOLAN Power/Ready LED is red and stays red for over 10 seconds, you have a hardware
problem that might require factory service. First, try the following:
z In Console mode for desktop models or viewing the Console port in rack mount models, see if
you need to reload the firmware, which can be found either on the CD-ROM that came with the
IOLAN or on the Perle website,
www.perle.com/downloads (when you access the webpage,
select your specific IOLAN model).
z If the bootloader option does not appear when you reboot the IOLAN (to load new firmware),
you need to make arrangements to return the IOLAN.
If you purchased the IOLAN less than 30 days before this problem appears, contact your distributor;
otherwise, see the Perle web site (
www.Perle.com) for factory service information.
Note:
No factory service can be performed on IOLANs that have not been registered.
The Power/Ready LED blinks red (See Power/Ready LED Labels on page 410 for the LED label
on your IOLAN unit.):
z Good Boot: When the IOLAN cycles through a good boot, the LED blinks for several seconds
and then stays a solid green.
z Non-critical Error Boot: When the IOLAN cycles through a boot and a non-critical error
occurs, such as a bad port, the LED will blink red briefly before displaying a solid green. You
should reboot the IOLAN while monitoring the Console port to view the error information.
z Critical Error Boot: When the IOLAN cycles through a boot and a critical error occurs, such as
corrupted firmware, the LED continues to blink red. View the diagnostic information displayed
on the terminal connected to the Console port for information on how to correct the problem.
z Fatal Error Boot: When the IOLAN cycles through a boot and a fatal error occurs, the LED
stays a solid red).