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Chapter 4. Status
61200217L1-1 T3SU 300 User Manual 4-3
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:
Remote State
This field displays the current state of the remote link. Possible
states are listed in the following table:
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.
Condition Description
Condition Description
Normal The local unit’s data link is in sync with the remote
unit.
Disabled The
D
ATA
L
INK
option in the
DS3 N
ETWORK
C
ONFIGURATION
menu is set to
D
ISABLED
.
Down The local and remote units are not in sync.