Chapter 5. Diagnostics
205
Alarm Reporting
Table 5-5 describes the various D/I Mux III alarms. Each is grouped as Major, Minor, or Info as
applicable.
Table 5-5. Alarm Reporting (Page 1 of 2)
Alarm Severity Report
to NCC
Log into
History
Description
Card
Added/Remov
ed
Major Yes Yes Major alarm if either of the LIUs or the Strobe card is
removed, otherwise it is an informational alarm.
RED Alarm Major Yes Yes Loss of T1 framing for > 450 ms.
YELLOW
Alarm
Major Yes Yes Bit 2 equals Zero for all 24 DS0s received or yellow alarm
in FDL of ESF.
Rly V Alarm Major Yes Yes -48 V supply relay failed.
RCVD Clk
Loss
Major Yes Yes Recovered T1 clock lost.
INT Clk Fail Major Yes Yes Internal clock failed.
ALPS T1-1
Loop
Major Yes Yes Data rerouted from T1-1 to T1-2 as a result of a span
failure.
ALPS T1-2
Loop
Major Yes Yes Data rerouted from T1-2 to T1-1 as a result of a span
failure.
ALPS Pass
Thru
Minor Yes Yes Both spans in use as a result of a span failure elsewhere
in the network.
T1-1 BER
Alarm
Minor Yes Yes Bit Error Rate on a T1-1 span exceeds threshold.
T1-2 BER
Alarm
Minor Yes Yes Bit Error Rate on a T1-2 span exceeds threshold.
PS1 ALARM Minor Yes Yes Power Supply (PS1 card slot) failed.
PS2 ALARM Minor Yes Yes Power Supply (PS2 card slot) failed.
+5V Fail Minor Yes Yes Plus 5-V failed.
+12V Fail Minor Yes Yes Plus 12-V failed.
-12V Fail Minor Yes Yes Minus 12-V failed.
-5V Fail Minor Yes Yes Minus 5-V failed.
-48V Fail Minor Yes Yes Minus 48-V failed.
Sig Bat Fail Minor Yes Yes Signal Battery failed.
Rng Gen +V
Err
Minor Yes Yes Ringing Generator failed.
Rng Gen -V
Err
Minor Yes Yes Ringing Generator failed.
Rng Gen Freq
Err
Minor Yes Yes Ringing Generator failed.