Chapter 4. Status

 

 

 

 

Condition

Description

 

 

 

 

Blue (AIS)

The unit is receiving a blue alarm condition from

 

 

the network. A blue alarm occurs when consecu-

 

 

tive 1010s are received in the information bits.

 

 

This indicates that there is a transmission fault lo-

 

 

cated either at or upstream from the transmitting

 

 

terminal.

 

 

 

 

OOF

The unit detects an out of frame condition from the

 

 

network.

 

 

 

 

Idle

The unit detects an idle sequence from the net-

 

 

work. Service is immediately available for use.

 

 

 

Data Link State

This field displays the current state of the data link between the local and the remote T3SU 300s. Possible states are listed in the following table:

Condition

Description

 

 

Normal

The local unit’s data link is in sync with the remote

 

unit.

 

 

Disabled

The DATA LINK option in the DS3 NETWORK

 

CONFIGURATION menu is set to DISABLED.

 

 

Down

The local and remote units are not in sync.

 

 

Remote State

This field displays the current state of the remote link. Possible states are listed in the following table:

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T3SU 300 User Manual

4-3

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ADTRAN T3SU 300 user manual Data Link State, Remote State