L3 Communications MPM-1000A Operator's Manual page 161

MPM-1000A Operator Manual
Symptom Description
NC Modem fails NC unable to
to acquire its gain an RFOW
own RFOW. value.
NM receives Unable to log
"login denied"
into the network.
message to a
login request.
NM terminal
Login Denied.
login has been
denied by the
NC.
Transmit
Transmit
TRANSEC
TRANSEC
Failure status
Failure.
reported in TX
Burst Status.
Receive Receive
TRANSEC TRANSEC
Failure. Failure status
reported in Rx
Burst Status.
Future MSK with System reports
given Rollover invalid MSK.
Date Time not
valid.
Table 13-2 General Troubleshooting (Cont'd)
Probable Cause
Unable to Transmit
and Receive.
Incorrect system
parameters.
Faulty system
components.
Incorrect system
parameters.
Incorrect system
parameters.
Terminal settings
zeroized either
locally or by the
NC.
Terminal settings
zeroized either
locally or by the
NC.
Attempt to submit
invalid Future MSK
Rollover
Date/Time.
13-5
Corrective Action
Open System Configuration page and
recheck system parameters.
Check to see if the Modem has been
logged off the satellite network, if logged
off re-enter the active network.
Check to see if the Modem is enabled to
transmit, if not enable.
Check to see if your Transmit and Receive
equipment is OK.
Check HCI Frequency Standard as internal
reference selected.
Ensure correct system parameters entered
on the System Page.
Ensure the transmit and receive chain
components are enabled, and the antenna
is pointed properly.
Ensure that the node name (on the
Network Centric Parameters page) is
unique. It must not match the name of any
other node in the network.
Ensure that the Data Port IP address (on
the Network page) is unique. It must not
match the IP address of any other node in
the network.
Log the terminal out of the network and re-
enter the network.
Check if another terminal has the same
Node Name.
Reload all system parameters on the HCI
TRANSEC page and Cycle power.
Reload all system parameters on the HCI
TRANSEC page and cycle power.
Reset MSK Pass Phrase.
Check the date and time of computer is in
range of generated MSK key.
1000-7075 Rev E