3Com RMON-EMP-3 Troubleshooting Startup Problems, Diagnostic Tests and Interface Status LEDs

Troubleshooting Startup Problems

This section describes how to troubleshoot startup problems by monitoring the Interface Status LEDs and the Module Status LED on the RMON MultiProbe Module faceplate.

When you first install the RMON MultiProbe Module in the hub, the module runs the following diagnostics:

❑SRAM Data Bus

❑SRAM Address Bus

The Interface Status LEDs display a pattern during the execution of each diagnostic test. The patterns correspond to the test as indicated in Table 4-1.

Table 4-1. Diagnostic Tests and Interface Status LEDs

Diagnostic	Interface 1	Interface 2	Interface 3
	Status LED	Status LED	Status LED
SRAM Data Bus	On	Off	Off
SRAM Address Bus	Off	On	Off

If the SRAM Data Bus or SRAM Address Bus diagnostics fail, the pattern of the failed diagnostic remains on the Interface Status LEDs. If this occurs, contact the 3Com Customer Service Center for corrective action.

4 - 2 Ethernet RMON MultiProbe Module Installation and Operation Guide