Table 11 describes the 450-2M3 MDA and 450-2S3 MDA front-panel components.

Table 11. 450-2M3 and 450-2S3 MDA Description

Item

Label

Description

 

 

 

1

Rx

Receive Status:

 

 

On steady (green): Valid

 

 

communications link; no activity.

 

 

On steady (yellow): No valid

 

 

communications link.

 

 

Off: The MDA is broken (or not fully

 

 

seated in the slot).

 

 

Blinking (green): Valid

 

 

communications link; receive activity.

2

Tx

Transmit Status:

 

 

On steady (green): Valid

 

 

communications link; no activity.

 

 

On steady (yellow): No valid

 

 

communications link.

 

 

Off: The MDA is broken (or not fully

 

 

seated in the slot).

 

 

Blinking (green): Valid

 

 

communications link; Transmit activity.

3

 

SC port connectors.

 

 

 

30

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Nortel Networks Installing Media Dependent Adapters manual 2M3 and 450-2S3 MDA Description