Network Technologies ASI-IP-GTW User Manual

Page of 93
ASI-IP-GTW User's Manual 
 
 Page 
71 
The warranty covers the following: 
All material defects in the equipment for a period of 12 months 
All parts and labour charges 
Return of the repaired item to the customer, postage paid. 
Customer assistance through Network Customer Service Help Line  
The warranty does not cover any engineering visit(s) to the customer 
premises. 
6.4  Fault-finding 
6.4.1 Fault finding Philosophy 
The objective of this chapter is to provide sufficient information to 
enable the operator to rectify apparent faults or else to identify where 
the suspect fault might be. It is assumed that fault-finding has already 
been performed at a system level. 
Warning: Do not remove the covers of this equipment. Hazardous 
voltages are present within this equipment and may be exposed if the 
covers are removed. Only Network trained and approved service 
engineers are permitted to service this equipment. 
Caution: Unauthorised maintenance or the use of non-approved 
replacements may effect the equipment specification and invalidate any 
warranties. 
This manual does not provide any maintenance information or 
procedures which would require to removal of covers. 
If the following information fails to clear the abnormal condition, please 
contact your local reseller or Network customer care. 
6.4.2 Preliminary Checks 
Always investigate the failure symptoms fully, prior to taking remedial 
action. The operator should not remove the cover of the equipment to 
carry out the fault diagnosis. The following fault-finding tasks can be 
carried out: 
Check that the PSU LED is lit. If this is not lit, replace external 
equipment, power source and cables by substitution to check that 
they are not defect. 
Confirm that the equipment hardware configuration is suitable for 
the purpose and has been correctly connected. 
Confirm that inappropriate operator action is not causing the 
problem, and that the equipment software set-up is capable of 
performing the required functionality. 
Check that the fans are unobstructed and working correctly. 
When the fault condition has been fully investigated, and the symptoms 
are identified, proceed to fault-finding according to the observed 
symptoms. If the fault persists, and can not be rectified using the 
instructions given in this manual, contact Network Customer Support. 
Switch off the equipment if it becomes unusable, or to protect it from 
further damage.