3Com NBX, Руководство по установке

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86 C
HAPTER
2: I
NSTALLING
S
YSTEM
H
ARDWARE
C
OMPONENTS
■
Gather the system components at the installation location.
■
Verify that an existing LAN is in place and is operational and that LAN
port connections are available.
■
Read and follow the safety notes and precautions later in this chapter.
Required and
Recommended Tools
and Equipment
These items are typically required to install an NBX system:
■
Screwdrivers (flat and Phillips)
■
Pliers
■
Antistatic grounding strap
■
Punch down tool
■
Test set
■
Four rack screws appropriate to the rack
Important Safety
Information
Before you install or remove any components or perform any
maintenance procedures on the system, you must read the following
safety information.
WARNING: Verify that each NBX 100 Chassis is set to the correct voltage
for your country requirements. The voltage is indicated on the voltage
selector switch next to the main cable inlet on the front panel of each
chassis. (See
Figure 25 .)
Figure 25 NBX 100 Voltage Selector Switch
230 volts
115 volts
230
115
The label to the left of the voltage selector
switch shows the 115 and 230 volt
selection positions. If the incorrect voltage
for your country is set, use a small
flat-blade screwdriver to toggle the switch
up or down on each chassis.
The V3000, V3001R, and the V5000 work
automatically with either 115 volt or 230
volt power, so they have no mechanism for
changing voltage.