Toshiba V Series - A Maintenance and Inspection

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Appendix A Maintenance and
Inspection
Periodic Inspection
Check the following items periodically, once every six months. Also, check these points if
any surrounding conditions or any environmental aspect changes.
Table A-1 Periodic Inspection Items
Inspection item Inspection Criterion Resolution procedure
Power supply
systems (S
controller power
supply/MAU
power supply)
Measure the power-
supply voltage at the
power-supply terminals.
Voltages must be within
the stipulated ranges.
Adjust the input voltages
to be within the
stipulated ranges.
Check for loose screws
at the power-supply
terminals.
There must be no
looseness.
Turn off (remove power
from) the power supply
and tighten down the
screws with a
screwdriver.
Check for damage to the
power-supply cables.
There must be no
damage.
Turn off (remove power
from) the power supply
and replace the
damaged cables.
Installation state Is the module firmly
locked in place?
There must be no
looseness or play.
Tighten down the screws
with a screwdriver.
Transmission
cable
connections
10BASE5:
Are the AUI cables firmly
locked in place?
There must be no
looseness or play. The
10BASE5 connector
slide latches must be in
their locked positions.
First press the cable
firmly into the connector
and then slide the slide
latch to the locked
position.
10BASE2:
Are the coaxial cables
firmly locked in place?
There must be no
looseness or play. The
T-connector locks must
be engaged.
First press the T-
connector firmly into
position and then
engage the T-connector
lock.
Transmission
cable wiring (See
Section 9.4,
"Network
Wiring".)
10BASE5/2: Check for
damage to the cables.
There must be no
damage.
Stop the system, turn off
(remove power from) the
power supply and
replace the damaged
cables.
Are the cables installed
near any power or other
cables?
There must be no power
or other similar cables in
the vicinity.
Separate the cables
from the power lines.
Shield the cables.
Ambient
conditions
Verify that temperature,
humidity, vibration, and
dust levels are all within
the stipulated ranges.
The values must be
within the ranges from
the general
specifications for the
module.
Improve the
environment so that all
aspects are within the
ranges stipulated in the
specifications.