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IOLAN DS1/TS2 User’s Guide, Version 4.5 232

Troubleshooting Appendix G

Introduction

This chapter provides information that can help resolve problems with the IOLAN.

Hardware Problems

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 If the IOLAN is not in Console mode, do the following:

a. Set up a direct connection to the IOLAN; see Through the Serial Port for information on

this type of connection.

b. Power the IOLAN off.

c. Switch the Console dip switch to On.

d. Power the IOLAN on.

If there is a problem with the IOLAN firmware, you will 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 IOLAN is already in Console mode and the Power LED stays red, 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 continues to blink green in desktop models.

This is not an error, the Power/Ready LED will blink green when serial port 1 is in Console Mode.

Communication Issues

General communication checks and practices are as follows:

z Are your cables connected and correctly configured? If you are using EIA-232, see EIA-232

Cabling Diagrams to verify that your cables are correctly configured.

z Can you ping your host? If you can ping but packet loss is reported, ping another host/device on

the same network. This will tell you whether the problem is specific to the host/device or general

to the network.

z After entering or changing IP information for your IOLAN, reboot the IOLAN (does not apply

when using BOOTP or DHCP). Once the IOLAN has rebooted, other network devices should be

able to communicate with it (ping, telnet, etc.). Also, protocols such as ARP and proxy-ARP will

work properly.

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Perle Systems Switch DS1 Manuale Utente Pagina 232