9. LED Indicators

The interface contains several different LED indicators, each of which conveys important information about the status of the unit and connected networks. These LEDs and their functions are summarized here.

9.1 Module and Ethernet Indicators

The module and Ethernet indicators are located between the MMI port and the Channel A drive port. Figure 6 indicates the functions of these LEDs.

 

ACT (Ethernet ACTivity)

 

NS (Network Status)

 

 

Flashes red when network

 

Currently reserved

 

 

activity is detected

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LNK (Ethernet LiNK)

 

MS (Module Status)

 

Solid green when valid

 

Currently reserved

 

network link exists

 

 

 

 

 

 

 

 

Figure 6: Module and Ethernet Indicators

9.2 ASD Port Indicators

Each ASD port RJ45 connector contains two integrated green LEDs. Figure 7 indicates the functions of these LEDs.

Network Access

 

Drive Link

Blinks in 0.1s-long bursts

 

Solid green when a logical

when drive is accessed by

 

connection exists with the

primary network master

 

attached drive

 

 

 

Figure 7: ASD Port Indicators

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