User's Manual

5.8GHz PDH User’s Manual
86
Appendix I: Arbeit NMS Alarm
Alarm Grade Status Unit Reason
MOD/DEM Unit Fault Critical No signal in both directions MOD/DEM Hardware troubleshoot
MOD Alarm Critical Can't send any correct signal MOD/DEM
DEM Alarm Critical Can't receive any correct signal MOD/DEM
DSC Unit Fault Major
No digital service between the
equipments
DSC
Hardware troubleshoot, but
main network still exist
DSC Alarm Major
No digital service between the
equipments
DSC
MUX Unit detecting clock is
incorrect
LINK ID Fault Critical
LINK ID at the remote end is
different from the user’s setting
LINK ID
Loopback Test Critical IDU is in Loopback Testing state Loopback
Far-end Equipment Alarm Critical
Far-end equipment can't receive
correct signal, but can send correct
signal
MUX
Far-end equipment notifies
the other end of the
alarming condition
MUX Fault Critical No signal in both directions MUX Hardware troubleshoot
AIS Alarm Critical
Equipment can't receive any correct
signal
MUX
If DEM alarms, MUX Unit
will send an AIS to indicate
that the MUX Unit is OK
Loss of Frame Loss Critical
Equipment can't receive any correct
signal
MUX
If BER is too high, MUX Unit
can't detect any correct
signal
Group Loss Critical
Equipment can't receive any correct
signal
MUX
MUX Unit can't detect the
MOD/DEM Unit’s clock.
TRIB X Loss Critical
IDU can't detect any signal from this
tributary
MUX
CABLE Fault Critical IDU loses M&C to the ODU Cable
M&C channel between IDU
and ODU is down
TX FIX Lock Fault Critical
TX lock malfunction
ODU
Transmitting lock
malfunction
RX FIX Lock Fault Critical RX receives ODU Receiving lock malfunction
Agile Lo. Fault Critical ODU
AGC Off Critical ODU
ALC Off Critical ODU
RF-TX Alarm Critical TX transmitting power ODU
RF-RX Alarm Critical RX receiving power ODU
SSPA Off Critical Transmitting power status ODU
ODU M&C
Alarm Critical
No link between IDU and ODU ODU/IDU Cable not connected
PLL-TX
Alarm Critical
ODU
PLL-RX
Alarm Critical
ODU
PA-A
Alarm Critical
ODU
SSPA
Alarm Critical
PA switched OFF ODU
TX-POW
Alarm Critical
Link ID
Alarm Critical
ODU/IDU
Eqijpment
Alarm Critical
ODU/IDU
Tributary #n loss
Alarm Critical
IDU
Tributary #n AIS
Alarm Critical
IDU
IDU Temperature Alarm Major Below IDU temperature threshold IDU
BER Alarm Critical Bit Error Rate