User's Manual

ISO 9001:2000 Cert. N°4500/1
Version 1.1 SDT_ARK6_User_Manual_ENG_vATSC Page 121 of 206
Description-Event
Event Description
Holdover OFF
Condition 1: the clock reference is changed and the OCXO is not
locked yet.
Condition 2: the input clock reference is not present.
Holdover SFN Ready
The OCXO is locked to the selected frequency reference and the
system is waiting for the OCXO stabilization.
Holdover Ready
Condition 1: the OCXO is stable and the Holdover function is now
available.
Condition 2: the system quit the Holdover mode because the OCXO
regain the lock to the selected clock reference.
Holdover ON
If the OCXO is no more locked to the selected frequency reference
and the Holdover function is enabled and available, the equipment
enters in holdover mode.
Holdover TMO Expired
Condition: the Holdover state is “ON” (the function is enabled) and the
Holdover timeout period elapses prior to regain the lock of the
selected clock reference source.
Fan N Speed string
It notifies which fan caused the Fans Speed Low alarm.
string:
 Low;
 OK
Updating GPS fw…
This event is reported when the update of the GPS firmware starts.
GPS firmware err xx
This event is reported when an error occurs during the update of the
GPS firmware.
xx: error code:
 0x80: File system busy;
 0x01: firmware not found in FS (for the current mode);
 0x02: GPS file opening error;
 0x03: GPS file reading error;
 0x06:GPS fw transferring into buffer error.
GPS firmware OK
New GPS firmware successfully loaded.
Updating GPS fw (NILL)…
When an error occurs during the update of the GPS firmware, the
system reloads the Nill firmware prior to attempt another update.
The following table lists the descriptions of all the alarm type events (refer to Alarms paragraph for
further information about alarms).
Table 24. Alarms descriptions list
Alarm
Description-Alarm
Temperature Absolute High
Temp. High
Temperature Alarm (-3dB)
Temp. High -3dB
Temperature Warning
Temp. High Warning
Fans Speed Low
Fans Speed Low
Alim Dialog Err
Alim Dialog Err
FE Dialog Err
FE Dialog Err
Meas Dialog Err
Meas Dialog Err
GPS Dialog Err
GPS Dialog Err
GPS Not Locked
GPS Not Locked
120MHz Not Locked
120MHz Not Locked