Table 5-37. Vt/Port Alarm Condition Descriptions; Setting Vt/Port Thresholds And Enabling/Disabling Alarms - ADTRAN MX2820 System Manual

SETTING VT/PORT THRESHOLDS AND ENABLING/DISABLING
ALARMS
Set the thresholds and enable or disable associated alarms from the VT/Port Statistics screen.
Table 5-37 provides VT/Port Alarm Condition descriptions.

Table 5-37. VT/Port Alarm Condition Descriptions

VT/Port Alarm Definition
OFF
OK
LOS T1/E1 Loss of Signal
CAIS Carrier Side AIS
LAIS Loop Side AIS
XCV T1/E1 Excessive
Code Violations
LOP VP Path Loss of
Pointer
VAIS VT Path Alarm Indi-
cation Signal
RFI-V Remote Failure Indi-
cation - VT Path
SLM-V Signal Level Mis-
match - VT Path
UEQ-V Unequipped - VT Path
UEQ Port Unequipped
TST Test
61186003L1-1D
Section 5, User Interface Guide - UIG-525, STS-1 MUX PM Statistics
Condition Description
This condition indicates the VT is equipped but the T1/
E1 port is disabled.
This condition indicates the port is in a normal state.
This condition indicates the unit has lost the receive sig-
nal.
This condition indicates the T1 is receiving all ones from
the STS side of the network.
This condition indicates the T1 is receiving all ones from
the DSX-1 interface.
This condition indicates the MUX module is receiving
excessive code violations, exceeding the threshold.
This condition indicates a VT LOP defect is declared
when either a valid pointer is not detected in eight con-
secutive VT superframes, or when eight consecutive VT
superframes are detected with the NDF set to "1001"
without a valid concatenation indicator. A VT LOP is
declared when the VT LOP defect persists for 2.5 ±0.5
seconds.
This condition indicates the unit is receiving a VT Path
alarm indication signal (VT-Path AIS-P is defined as all
ones in bytes V1 and V2, as well as all ones in the entire
VT synchronous payload envelope). A VAIS failure is
declared when the defect persists for 2.5 ±0.5 seconds.
This condition indicates the unit is receiving a VT Path
remote failure indication (RFI-V is declared when the
incoming VT Path remote defect indication [VTRDI, "1"
in bit 4 of the VT-Path overhead byte, V5, in five contig-
uous frames] lasts for 2.5 ±0.5 seconds.
This condition indicates a received signal label is mis-
matched if it does no equal the locally provisioned value
or the value "equipped non-specific".
This condition indicates the received VT path is
unequipped if it is not provisioned (Byte V5 of the
received VT path overhead is set to zero).
This condition indicates the VT is not mapped to a T1/
E1 port.
This condition indicates the VT/Port is in test mode.
5-79