HP auroraTempo User Manual page 53

The following table provides a key to the E1 display :
Display Status Description
Interface/Framing
LOS
(Loss of Signal)
LOF
(Loss of Frame Sync.)
AIS
(Alarm Indication Signal)
RAI
(Remote Alarm Indication)
Frame Slips
BPV
CRC4
FAS
EBIT
• To display more status information, press F1 Physical
Next.
Issue 1a - 10/99
E1 is displayed, followed by an indication of
the framing type: Basic Framed
Multiframed .
Alarm indicates that no signal is present on
the line;
Clear indicates there is a signal present on
the line.
Alarm indicates that there is currently loss of
frame synchronization;
Clear indicates that there is frame
synchronization.
Alarm is displayed when the Alarm Indication
Signal is received;
Clear is displayed when AIS is not received.
Alarm is displayed when Remote Alarm
Indication is received;
Clear indicates no RAI is received.
Displays the number of frame slips that have
occurred.
Displays the number of bipolar violations that
have occurred.
In Multiframed mode only: displays the
number of CRC4 errors that have occurred.
Displays the number of frame alignment
signal errors that have occurred.
In Multiframed mode only: displays the
number of Error Bits that have been received.
Physical Testing
or CRC4
4-5