Verifying the LED and Network Assignments

Once you install the module, verify its operation through the front panel of the ONline Controller Module. The Controller Module is equipped with an LED check button on the front panel. Use the LED check button to:

Verify LED operation

Verify network (channel) assignment

When you press this button, the Controller Module initiates a test to all modules in the concentrator. All LEDs should respond by lighting continuously for approximately five seconds. Any LED that does not light is defective.

After the 5 seconds elapse, the diagnostic continues with a network (channel) check of all modules. Each Status LED should respond by blinking the number of times to correspond with the network to which the module is assigned. The network check sequence repeats five times. Table 3-6 explains the network check codes.

Table 3-6. Network Check Codes

LED State

Module Is Configured for...

 

 

 

1

Blink

Network 1

 

 

 

2

Blinks

Network 2

 

 

 

3

Blinks

Network 3

 

 

Off

Isolated mode (operates independent of any network)

 

 

 

3 - 20 ONline Ethernet 10BASE-FL Installation and Operation Guide

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3Com 5104M-FL1 Verifying the LED and Network Assignments, Network Check Codes, LED State Module Is Configured for