Qlink-3000 Multiplexing modem
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Copyright © 2003 -2005 Cronyx Engineering
33
signal, frame or multiframe synchronization was lost; this counter is not displayed
for the Ethernet port;
• Err – for the SHDSL link - the number of seconds, during which the blocks with
wrong CRC or BER tester errors were detected; for the E1 port - the number of
seconds, during which CRC4 errors or BER tester errors were detected; for the
Ethernet port - the number of seconds, during which Ethernet bridge module errors
were present;
• Event – for the SHDSL link - the number of seconds, during which slip events or
jitter attenuator errors were found; for the E1 port - the number of seconds, during
which slip events were present; for the Ethernet port - the number of seconds, during
which collisions were observed in the network segment;
SHDSL “Link Status”:
• Initialization – port initialization;
• Activating – connect activation;
• OK – normal mode (connection with the remote device established, there are no
errors);
• CRC anomaly – connection with the remote device established, but wrong CRC
blocks are received;
• LOSW defect – connection with the remote device established, but there is wrong
synchronization word in the received block;
• Loop attenuation defect – connection with the remote device established, but signal
attenuation in the link exceeds the acceptable threshold;
• SNR margin defect – connection with the remote device established, but the signal-
to-noise ratio is below the acceptable threshold;
• LOSW failure – connection with the remote device established, but wrong
synchronization word blocks are received;
The state of the E1 port is shows as a set of flags:
• Unused – port not used;
• LOS – loss of signal in the link;
• AIS – link Alarm Indication Signal received (the “Blue Alarm”);
• LOF – loss of frame synchronization;
• LOMF – loss of multiframe synchronization;
• FARLOF – fault signal received (bit A of the zero timeslot);
• CRCE – CRC4 error;
• SLIP – controlled slip event;
• OK – normal mode (link signal, frame and multiframe synchronization are present);
