Black Box MWU2000-X21 - Manual (Page 78)

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2.048Mbps Wireless Modem
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Message: Remote Frame Alarm
Description: In fractional E1 applications, an indication from the connected end equipment
that it was unsuccessful in synchronizing with the 2.048Mbps Wireless
Modem.
Correction: Check the cable, which connects the end equipment to the modem.
Message:
Yellow-alarm
Description: In fractional T1 applications, an indication from the connected end equipment
that it was unsuccessful in synchronizing with the 2.048Mbps Wireless
Modem.
Correction: Check the cable that connects the end equipment to the modem.
Message:
Frame-slip
Description: In Fractional E1 or Fractional T1 applications, indicates lack of compatibility
between the clocks of the 2.048Mbps Wireless Modem and the end
equipment.
Correction: Configure properly the clocks in the end equipment.
Message: Remote-BreezeLINK-Unsync
Description: In Fractional E1 or Fractional T1 applications, indicates a temporary incidence
of a very noisy radio channel. Repeated occurrences indicate a very noisy
radio channel, a hardware problem (e.g. clocks with excessive jitter) or a
problem related to configuration of clocks. Correction: Check the quality of
the radio link. If the quality is low, try to improve it. Otherwise, the unit
should be checked by an authorized Black Box technician
Message: Too many BPV/CV
Description: In Fractional E1 applications, too many Bipolar code violations-indicates
selection of bipolar AMI line code in the 2.048Mbps Wireless Modem when
the end equipment uses HDB3 line code. In Fractional T1 applications, too
many Bipolar code violations indicates selection of Bipolar AMI line code in
the modem when the end equipment uses BHZS line code.
Correction:
Configure the line code correctly.