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Ethernet module User’s Manual
Appendix A Maintenance and Inspection
A
Warning
• Always turn off the power before attaching or removing modules, the terminal block, or
cables.
Electrical shock, malfunctions, and breakdowns are possible if these operations are per-
formed with the power on.
• When measuring the voltages at the module terminal block during inspections, use adequate
caution.
There is a danger of electrical shock during this operation.
• Always turn off the power completely before replacing modules.
Exchanging modules with the power on can lead to malfunctions, breakdowns, and electrical
shock.
• Do not disassemble or modify the module hardware, and do not modify the module software.
Breakdowns or malfunctions may lead to fire, electrical shock, or injury.
Caution
• To keep the system operating normally at all times and to prevent trouble in advance, per-
form daily inspections, periodic inspections, and cleaning.
• Refer to the section on error recovery in this document if the EN311 does not operate cor-
rectly.
Contact your local Toshiba dealer or service representative if a breakdown occurs, and
request that the module be repaired or returned to Toshiba.
Operation and safety cannot be guaranteed if service is performed by anyone other than an
authorized Toshiba service representative.
• Do not continue to use the module if it emits smoke or unusual odors, or if it is in an abnor-
mal state of any type.
Using the module in an abnormal state can lead to malfunctions, breakdowns, and electrical
shock.
In such cases, immediately turn of all power and contact your local Toshiba dealer or service
representative.
Customers should never attempt repairs or modifications to this equipment themselves:
repair and modification operations are extremely dangerous.
Summary of Contents for V Series
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