A Maintenance And Inspection - Toshiba V Series User Manual

Appendix A Maintenance and
Periodic Inspection
Check the following items periodically, once every six months. Also, check these points if
any surrounding conditions or any environmental aspect changes.
Inspection item
Power supply
systems (S
controller power
supply/MAU
power supply)
Installation state
Transmission
cable
connections
Transmission
cable wiring (See
Section 9.4,
"Network
Wiring".)
Ambient
conditions
6F8C0904
Inspection
Table A-1 Periodic Inspection Items
Inspection
Measure the power- Voltages must be within
supply voltage at the the stipulated ranges.
power-supply terminals.
Check for loose screws There must be no
at the power-supply looseness.
terminals.
Check for damage to the There must be no
power-supply cables. damage.
Is the module firmly There must be no
locked in place? looseness or play.
10BASE5: There must be no
Are the AUI cables firmly looseness or play. The
locked in place? 10BASE5 connector
slide latches must be in
their locked positions.
10BASE2: There must be no
Are the coaxial cables looseness or play. The
firmly locked in place? T-connector locks must
be engaged.
10BASE5/2: Check for There must be no
damage to the cables. damage.
Are the cables installed There must be no power
near any power or other or other similar cables in
cables? the vicinity.
Verify that temperature, The values must be
humidity, vibration, and within the ranges from
dust levels are all within the general
the stipulated ranges. specifications for the
module.
Criterion Resolution procedure
Adjust the input voltages
to be within the
stipulated ranges.
Turn off (remove power
from) the power supply
and tighten down the
screws with a
screwdriver.
Turn off (remove power
from) the power supply
and replace the
damaged cables.
Tighten down the screws
with a screwdriver.
First press the cable
firmly into the connector
and then slide the slide
latch to the locked
position.
First press the T-
connector firmly into
position and then
engage the T-connector
lock.
Stop the system, turn off
(remove power from) the
power supply and
replace the damaged
cables.
Separate the cables
from the power lines.
Shield the cables.
Improve the
environment so that all
aspects are within the
ranges stipulated in the
specifications.
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