3com NETBuilder II 用户手册

 

This chapter describes how to troubleshoot and maintain the HSSI module. 

If you are unable to resolve a problem with your HSSI module, you will need to contact a 
customer service representative. Refer to Appendix C, “Technical Support,” for information 
about who to contact in your area.

 

The following symptom indicates a self-test failure at startup. For complete information on 
configurable firmware parameters, refer to the

 

or later

 

The following message is displayed:

 

HSSI Interface: Self Tests failed - slot X

 

The value of X can be 1 through 4 or 1 through 8, depending on whether you have a 4-slot or an 
8-slot NETBuilder chassis.

 

Check to see if the card is inserted completely into the NETBuilder II chassis.

 

This section describes preventive maintenance you can take and how to replace the HSSI 
module.

 

3Com recommends the following procedures for preventive maintenance:

 

■

 

Observe the guidelines in Appendix A of the 

 

 for minimum and maximum electrical and environmental requirements.

 

■

 

Keep the area around the NETBuilder II base system clean and avoid accumulated dust.

 

■

 

Allow sufficient air space around the NETBuilder II base system for proper ventilation. 
This protects the HSSI module from excessively high temperatures.

 

■

 

Observe ESD guidelines whenever handling the HSSI module.

Refer to Chapter 5 of the 

 

 for preventive 

maintenance tips that apply to the entire system.