User's Guide
- xi - 
INSTALLATION, RELOCATION, STORAGE, AND CONNECTION 
Do not install the server switch unit in any place other than specified. 
Do not install the server switch unit in the following places or any place other 
than specified in this user’s guide. Failure to follow this instruction may cause 
a fire. 
■ a dusty place 
■ a humid place such as near a boiler 
■ a place exposed to direct sunlight 
■ an unstable place 
Do not use the server switch unit in the place where corrosive gases exist. 
Make sure not to locate or use the server switch unit in the place where 
corrosive gases (sulfur dioxide, hydrogen sulfide, nitrogen dioxide, chlorine, 
ammonia, ozone, etc.) exist. Also, do not set it in the environment where the 
air (or dust) includes components accelerating corrosion (ex. sulfur, sodium 
chloride) or conductive metals. There is a risk of a fire due to corrosion and 
shorts of an internal printed board. 
Do not connect any interface cable with the power cord of the server switch 
unit plugged into a power source. 
Make sure to power off the server switch unit and unplug the power cord from 
a power outlet before connecting/disconnecting any interface cable to/from the 
server switch unit. If the server switch unit is off-powered but its power cord is 
plugged to a power source, touching an internal device, cable, or connector 
may cause an electric shock or a fire resulted from a short circuit. 
Do not use any unauthorized interface cable. 
Use only interface cables provided by NEC and locate a proper device and 
connector before connecting a cable. Using an authorized cable or connecting 
a cable to an improper destination may cause a short circuit, resulting in a fire.
Also, observe the following notes on using and connecting an interface cable.
■ Do not use any damaged cable connector. 
■ Do not step on the cable. 
■ Do not place any object on the cable. 
■ Do not use the server switch unit with loose cable connections. 
■ Do not use the server switch unit if it is not locked with screws. 
■ Do not use any damaged cable. 










