---------------------- line0 - T1 Primary Rate ISDN =
---------------
Status: UP Framing: ESF Encoding: B8ZS PCM: =
u-law
=20
Receive Level: +2dB to -7.5dB
Alarms Violations
----------------------------- =
-----------------------------
Blue 2 Bipolar =
0
Yellow 0 CRC Errors =
0
Receive Carrier Loss 0 Multiframe Sync =
115
Loss of Sync 2
Here is a typical circuit layout.=20
switch ---- dacs ---- transport ----- niu --- pm3
A blue alarm is an all ones keep alive signal. The situation you =
would most likely see a blue alarm, is when a piece of intelligent =
equipment loses carrier, instead of dropping the signal, it sends =
the all ones keep alive. Let's say for instance that the span =
between the switch and the dacs failed. The dacs would then send =
the all ones to you rather than just dropping the signal. If the =
span had failed between the dacs and the niu, you would have seen =
a red alarm, loss of signal, or all zeros. Of course, your mileage =
may vary, since I do not know the deisgn of your circuit.=20
Kyle Platts
CSS-Tech
!NTERPRISE Networking Services=