User Manual

AS4000 Operations and Maintenance
Section
605-0000-431
5
. Issue 1.6. Date3/2/99
Page 1 of 8 © Copyright Airspan Communications Corporation 1999
SECTION 5: FAULT DIAGNOSTICS ST
4. Purpose of Section
This section is designed to assist with the location of faults occurring at the ST
It is expected that some ST problems will be triggered by a customer notification to the
service provider. If a fault is reported by a customer it will help the process if the
customer can provide alternative phone contact e.g. a neighbours phone.
In addition some questions to check on the mains supply status and whether the Amber
LED on the AC PSU is ON(Type 2 PSU only) will be advantageous during the
subsequent fault finding process.
Within the event log search output results a number or alarm patterns may be
recognised to help diagnose the problem.
For single event alarms listed below reported at the Sitespan refer to the specific alarm
message in section 3 as follows:-
1.1.18. Battery back-up charge drops below approximately 30% of full charge
1.1.19. PSU Tampered
1.1.20. Ringer Failure
5. AS8100 (Sitespan) Alarms Generated at the Subscriber
Terminal
Shelf View
If the alarm is at the ST then the line/telephone symbols displayed on the Shelf View will
be in Red.
Clicking on the line symbols brings up the Card View ST. Alternatively the ST View can
be displayed by clicking on ST View when in Card View.
Card View - ST
The Card view in Figure 5-1 shows the status of the ST supported by Modem 2 on
Modem Card 1. i.e. Poor Bit Error Rate. The (customer selected) colour of these alarm
icons indicate whether they are; in service, faulty or receiving attention. This information
is also reflected in the State box within the CRU Inventory Information box. Also shown
are details of the Serial Number and Firmware Code of the ST.