Vt/port state, Vt/port state -10 – ADTRAN 4200659L1 User Manual
Page 100
Chapter 4. Status
4-10
MX2800 STS-1 User Manual
61200659L1-1
•
LOS/AIS
–
indicates that the clock source is not valid due to an
LOS or AIS condition.
•
F
AIL
–
indicates that an internal hardware failure on the unit
prevents the clock source from being used.
•
U
NAVAILABLE
– indicates that the user has specified a T1/E1
port to be used as an external clock source, but the port has not
been enabled.
VT/PORT STATE
This field displays the current alarm condition of the VTs/ports.
Possible conditions are given in the following chart:
VT/Port State
Alarm
Description
OFF
VT in unequipped and T1/E1 port is disabled.
OK
VT/Port is in a normal state.
LOS
(T1/E1 Loss of Signal)
The unit has lost the receive signal on a T1/E1.
CAIS
(Carrier Side AIS)
The T1 is receiving all ones from the STS side
of the network.
LAIS
(Loop Side AIS)
The T1 is receiving all ones from the DSX-1
interface.
XCV
(T1/E1 Excessive Code Violations)
The controller card is receiving excessive code
violations, exceeding the threshold set by the
user (see XCV Threshold on page 3-12).