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Section
9-4
Cleaning and Inspection
139
Clearing an Error Log
Send the ERROR LOG CLEAR FINS command (command code 2103) to the
appropriate node. Refer to 6-3-15
ERROR LOG CLEAR
.
9-4
Cleaning and Inspection
9-4-1 Cleaning
Conduct the following periodic cleaning to keep the Controller Link Support
Board in optimum condition.
•
Wipe the Unit with a dry, soft cloth daily.
•
If glue, vinyl, or tape is left on the Board for long periods of time, it will stain.
Remove these items during cleaning.
Caution
Do not use volatile solvents such as benzine or paint thinner, or chemical cloths
for cleaning. They will damage the quality of the coating on the Board.
9-4-2 Inspection
Controller Link Support Boards must be inspected on a regular basis to ensure
correct operation. Inspections should be conducted once every 6 to 12 months.
If the Board is subject to extremes in temperature or humidity, inspections
should be conducted on a more regular basis.
Tools and Equipment Need for Inspection
The following tools and equipment will be needed to perform inspection and ad-
justments.
•
Assorted flat-blade and Phillips screwdrivers
•
Circuit tester or digital voltmeter
•
Industrial-grade alcohol and clean cotton cloth
•
Synchroscope
•
Pen-chart recording oscilloscope
•
Thermometer, hygrometer
•
Optical tester
Inspection Items
Inspect the following items to see if they deviate from the prescribed standards.
If any items do deviate from the standard either adjust so they are within the op-
erating range or adjust the Board accordingly.
Item
Description
Inspection instrument
Ambient condi-
i
Temperature: 5
°
to 45
°
C
Thermometer
tions
Humidity: 8% to 80% (no
condensation or freezing)
Hygrometer
Dust-free
Sight
Installation
Board securely attached?
Communications cable connectors
tight?
Communications cables securely
locked into place?
Communications cabling used for
external wiring intact (no breaks)?
Sight
Optical fiber
deterioration
Optical loss increasing?
Confirm that optical loss
has not increased since
installation.
50/125
µ
m: 3.0 db/km
62.5/125
µ
m: 3.5 db/km