Specifications

Chapter 4 Troubleshooting and Diagnostics IPmux-4 Installation and Operation Manual
4-2 Error Detection
Table 4-1. Event Types
Event Description Corrective Action
COLD_START The IPmux-4 has been powered up None
PS1_ACTIVE OR
PS2_ACTIVE
One of the IPmux-4 power supply
units is powered on
None
PS1_NOT_ACTIVE OR
PS2_NOT_ACTIVE
One of the IPmux-4 power supply
units is powered off
Check the external mains supply
FATAL ERR The IPmux-4 has encountered an
internal fatal error
The IPmux-4 requires servicing
SYS USER RESET The IPmux-4 had been reset by the
user
None
LOS START The IPmux-4 has a LOS (loss of
signal) state on one of its E1/T1
channels
1. Check the port cable connection
2. Check input signal
LOS END The LOS state detected has ended
LOF START The IPmux-4 has a LOF (Loss of
frame synchronization) state on one
of its E1/T1 channels
1. Check port cable connection
2. Check input signal
LOF END The LOF state detected has ended None
LINE AIS START The IPmux-4 has AIS (alarm
indicator signal) state on one of its
E1/T1 channels
Check for a fault at the E1/T1 network,
on the receive direction
LINE AIS END The line AIS state detected has
ended
None
LINE RDI START The IPmux-4 has LINE RDI (remote
defect indicator) state on one of its
E1/T1 channels
Check for an E1/T1 connectivity fault on
the transmit side
LINE RDI END The LINE RDI state detected has
ended
None
LINE FEBE START
(SDH module only)
The IPmux-4 has LINE FEBE state
on one of its E1/T1 channels
Check for errors in the E1/T1
connection on the transmit direction
LINE FEBE END The LINE FEBE state detected has
ended
None
Remote Fail Start Ethernet frames are not received by
the remote IPmux-4 on the
specified connection
Check Eth/IP path
Remote Fail End The remote fail state has ended None
Local Fail Start Ethernet frames are not received by
the local IPmux-4 on the specified
connection
Check Eth/IP path
Local Fail End The local fail state has ended None
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