Verifying Led And Network Operation; Using The Corebuilder 5000 Controller Module To Verify Bicolor Led Operation; Using The Dmm To Verify Network Connections - 3Com CoreBuilder 5000 User Manual

Verifying LED and
Network Operation
Using the
CoreBuilder 5000
Controller Module
to Verify Bi-color
LED Operation
Using the DMM to
Verify Network
Connections
To determine if your configuration is operating correctly, you must verify
network operations. This section describes LED and Network verification
for the 12-Port 100BASE-TX Workgroup FastModule, including:
Using the CoreBuilder 5000 Controller Module to Verify Bicolor LED
Operation

Using the DMM to Verify Network Connections

For more information on the DMM, refer to the CoreBuilder 5000
Distributed Management Module User Guide.
The CoreBuilder 5000 hub controller module is equipped with a LED
Test button on the front panel. Use this button to verify LED operation.
When you press the LED test button:
1 The module initiates a test to all modules in the hub. All LEDs respond
by lighting continuously for approximately 5 seconds.
2 During this time period, the LEDs should alternate between green and
yellow about every ½ second. Any LED that does not light is defective.
The LED test does not disrupt network operation.
During a software download to the 12-Port 100BASE-TX Workgroup
FastModule, the Module Status LED on the module is Off, and all of
the other port LEDs are illuminated solid yellow until the download
process is complete.
The Distributed Management Module allows you to verify each network
connection (both backplane and isolated) for all CoreBuilder 5000
modules and monitor cards installed in your hub.
To initiate the verification process:
1 Press the Display Control Toggle button on the front of the DMM.
2 Observe the DMM LED matrix display sequentially cycle through each
network connection including fast_ethernet_1 through 4 or Isolated.
3 Each status port LED associated with the network indicated on the
DMM LED matrix display illuminates.

Verifying LED and Network Operation

4-17