Hitachi HF-W100E Instruction Manual page 22

(3) CONNECTOR
<Precautions>
• In order to connect a connector properly, you need to insert it with the proper orientation
and at the proper angle. If a connector is not inserted properly, the connection may fail or
malfunction.
• Make sure there are no loose I/O cable connectors on the equipment.
(4) POWER SUPPLY
1. Power Voltage
<Required actions>
• Confirm that the voltage of the power input to the equipment is within the specified
range (12Vto24VDC). If the voltage of the power input is close to the upper or lower limit
of the specified range, you should treat it as you would a setting error of the input voltage
and ask the manager of the power facility to inspect the voltage output by the facility.
(The rated output of AC adapter is 12 VDC)
2. Power Cord＜When using option AC adapter＞
<Precautions>
• The power cable attached to AC adapter is rated at the input voltage of 125VAC.
When using this optional AC adapter at over 125 VAC, prepare the power cable which fit
input voltage and inspect the safeness of this equipment enough.
• Install D class grounding (previously known as third class grounding) defined in the
Technical Standard for Electrical Facilities of Japan in order to maintain normal
operation of electronic circuits containing highly integrated LSIs and protect equipment
from abnormal voltage caused by lightning or the like.
• Use a power cord with a 2-prong plug and a grounding pole. (See"1.6 Hardware
connection".)
• When you connect the plug of the power cord to an outlet, make sure you use an outlet
with a neutral pole that is properly grounded. In addition, you must install and use an earth
leakage circuit breaker.
• Do not put any object on the power cord. In addition, do not install signal lines near the
power cord.
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