9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. V-2-3
Before Going to Site Checklist
Where possible, before going to site obtain the following information:
• Does the fault require immediate attention?
• Determine who is the best-placed person to attend the fault.
• Confirm the nature and severity of the reported fault, its location, 9500 MXC
type (Node or Terminal), frequency band, high/low end ODU, capacity,
modulation and configuration (non-protected, protected, diversity, ring). Ask:
• Is just one 9500 MXC link affected, or a number of links in the same
geographical area?
• Is the path down completely or is traffic passing but with a BER alarm?
• Is only one or a number of tributaries affected?
• Could the fault be in the equipment connected to 9500 MXC, rather than in
9500 MXC? Are there alarms on other, connected equipment?
• Is it a hard or intermittent fault?
• Do alarms confirm which end of an alarmed link is faulty?
• Could the weather (rain, ice, high wind, temperature) be a factor in the reported
fault?
• Does link history suggest any fault trends?
• Does the fault history for the link indicate a likely cause?
• Is the 9500 MXC link newly installed?
• Has there been any recent work done on the link?
• Ensure that you have with you:
• Appropriate spares. Where an equipment failure is suspected, these should
include replacement modules/plug-ins and ODU. If an ODU is suspected
then local/national climbing safety requirements must be adhered to.
• A laptop PC loaded with CT, and either an Ethernet or V.24 connection
cable. If an Ethernet connection is to be used, you need the 9500 MXC
Node/Terminal IP address and also the addresses for any remote sites to be
accessed.
• If login security has been enabled, you will need the 'engineer' password for
the local and remote sites to be accessed.
• Any special test equipment that may be needed, such as a BER tester.
If the fault suggests a rain fade or other weather related fade condition and it
matches the prevailing weather conditions, do not take any action until the
weather abates.
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