Download ANT-20E SONET Analyzer Manual

Mainframe, SONET Version
1.4
ANT-20/ANT-20E
Faults and excessive stresses
If it is suspected that the instrument is no longer safe to use, it should be taken out of service
and secured against unintentional operation. This situation is possible if:
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the instrument is visibly damaged,
the instrument does not work,
the instrument is exposed to stresses of any kind which are outside the permitted limits,
the instrument has been stored for a long period under unsuitable conditions or handled
roughly during transport (see Sec. 2, Page G-6).
In such cases, contact your nearest Wavetek Wandel Goltermann Service Center. The
addresses are listed at the end of this operating manual.
1.5
Repair and maintenance instructions
If the covers are removed or parts of the instrument are manipulated using tools, it is possible
that other parts carrying dangerous voltages may be exposed. The connectors may also be live.
For this reason, the instrument must be disconnected from all voltage sources before it
is opened. Simply switching it off using the AC line switch is not sufficient.
Capacitors in the instrument may retain a charge even long after the instrument has been
disconnected from all voltage sources.
If subsequent calibration, maintenance or repair of the opened instrument under voltage
becomes necessary, such work should only be performed by trained persons familiar with the
risks involved.
Repairs
Repairs must be carried out by trained persons. The constructional features of the instrument
must not be altered in any way which might adversely affect the safety characteristics of the
instrument. In particular, creepage and air paths and the insulation spacing must not be
reduced.
Wherever possible, use only original spare parts for replacement. Other parts may only be used
if they do not adversely affect the safety characteristics of the instrument.
Fuses
Use only the prescribed fuses (see Sec. 3.1, Page G-8).
G-2
Getting Started