D-Link DES-3250TG ユーザーズマニュアル

 

•  To help prevent electric shock, plug the system and peripheral power cables into properly grounded electrical outlets. 

These cables are equipped with three-prong plugs to help ensure proper grounding. Do not use adapter plugs or 
remove the grounding prong from a cable. If you must use an extension cable, use a 3-wire cable with properly 
grounded plugs. 

•  Observe extension cable and power strip ratings. Make sure that the total ampere rating of all products plugged into 

the extension cable or power strip does not exceed 80 percent of the ampere ratings limit for the extension cable or 
power strip. 

•  To help protect your system from sudden, transient increases and decreases in electrical power, use a surge 

suppressor, line conditioner, or uninterruptible power supply (UPS). 

•  Position system cables and power cables carefully; route cables so that they cannot be stepped on or tripped over. Be 

sure that nothing rests on any cables. 

•  Do not modify power cables or plugs. Consult a licensed electrician or your power company for site modifications. 

Always follow your local/national wiring rules. 

•  When connecting or disconnecting power to hot-pluggable power supplies, if offered with your system, observe the 

following guidelines: 

– Install the power supply before connecting the power cable to the power supply. 
– Unplug the power cable before removing the power supply. 
– If the system has multiple sources of power, disconnect power from the system by 
unplugging all power cables from the power supplies. 

•  Move products with care; ensure that all casters and/or stabilizers are firmly connected to the system. Avoid sudden 

stops and uneven surfaces. 

 
 

 

 

Observe the following precautions for rack stability and safety. Also refer to the rack installation documentation 
accompanying the system and the rack for specific caution statements and procedures. 
Systems are considered to be components in a rack. Thus, "component" refers to any system as well as to various peripherals 
or supporting hardware. 

 

 

CAUTION: Installing systems in a rack without the front and side 
stabilizers installed could cause the rack to tip over, potentially resulting in 
bodily injury under certain circumstances. Therefore, always install the 
stabilizers before installing components in the rack.  

After installing system/components in a rack, never pull more than one 
component out of the rack on its slide assemblies at one time. The weight 
of more than one extended component could cause the rack to tip over 
and may result in serious injury.

 

 

•  Before working on the rack, make sure that the stabilizers are secured to the rack, extended to the floor, and that the 

full weight of the rack rests on the floor. Install front and side stabilizers on a single rack or front stabilizers for joined 
multiple racks before working on the rack.