17(42)
Datum/Date
Rev
Dokumentnr/Documentnr
Uppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved
Kontr/Checked
Tillhör/Referens-File/Reference
1999-07-15
F
1545-ASB 150 02 Uen
FAULT TRACING DESCRIPTION
Faktaansvarig - Subject responsible
2.5
Flow chart: Individual does not work at all
START
Extension?
Y
Telephone functions
at another
Y
N
N
Locate
faulty
individual
and connect RASC
Trunk?
Y
Check, repair or replace
telephone (see point 4.1)
line position?
Check
MDF and
Cable breaks?
Y
N
Intermittent
fault?
Y
N
Analog/digital?
analog
digital
AE
AA
Line signalling
Y
N
diagram agrees with
line test?
Check with anaolg test
equipment in MDF for dial
tone from public exchange
Fault in public ex-
change. Report fault
to relevant instance.
Another type?
Y
AF
Replace board.
Dial tone?
Y
Fault remains?
Y
N
(see point 4.9)
cabling for breaks.
Correct line
Fault remains?
Y
N
running
AA
AA
Report fault
(see point 4.13)
Y
N
log related
Warning
to fault?
code in warning
Y
N
(see point 4.9)
Check
Correct?
MDF and cabling
Correct line
Fault remains?
Y
N
running
AA
Fault in public ex-
change. Report fault
to relevant instance.
N
AA
AA
=
Go to " Completion of service" on page 31
Go to
page 14
Go to
page 13
2
2
N
AA
Report fault
(see point 4.13)
