Monitor==>Lines

View real-time activity of the ISDN, T1, and E1 lines on the PortMaster.

PortMaster
IP address or name of the selected PortMaster.
Line
Line number (line0 through line<n>).
Status
State of the line---up or down.
Receive Level
Signal strength on the line in decibels.
Blue Alarm
Number of blue alarms sent from the remote end of the connection. Blue indicates unframed all ones (1s) signal.
Yellow Alarm
Number of yellow alarms sent from the local end of the connection. Yellow indicates D4 bit2, D4 12th F-bit, or extended superframe (ESF) mode (framing) signal.
Carrier Loss
Number of interrupts resulting in loss of the carrier signal.
Sync Loss
Number of interrupts resulting in device loss of synchronization signal.
Bipolar Error
Number of bipolar errors---consecutive bipolar violations of same polarity.
CRC
Number of errors in the CRC6 code words (ESF framing), or in the Ft framing bit position (D4 framing).