3com 4005 Installation Instruction
16
C
HAPTER
3: S
ITE
R
EQUIREMENTS
AND
P
RODUCT
S
PECIFICATIONS
Environmental
Specifications
Specifications
The site for the Switch 4005 should meet the environmental requirements shown
in Table 2:
in Table 2:
Ventilation
Requirements
Requirements
The chassis operates with two fan trays. Each fan tray contains two fans. These
fans pull ambient air into the chassis from vents in the module faceplates and
expel hot air through vents in the back of the fan tray.
fans pull ambient air into the chassis from vents in the module faceplates and
expel hot air through vents in the back of the fan tray.
Although the fan trays provide the majority of the cooling, the power supplies also
contain fans. Each power supply pulls in ambient air through side vents in the
adjacent chassis wall and expels hot air through its vents in the back.
contain fans. Each power supply pulls in ambient air through side vents in the
adjacent chassis wall and expels hot air through its vents in the back.
If a power supply overheats, it shuts itself off.
To ensure that adequate ventilation exists for the Switch 4005:
■
Maintain at least 7 cm (2.76 in.) between the sides of the chassis and the
nearest wall or other vertical surface.
nearest wall or other vertical surface.
■
Maintain at least 8 cm (3 in.) between the front of the chassis and another
vertical surface (such as a rack door).
vertical surface (such as a rack door).
■
Maintain at least 91.4 cm (36 in.) at the back of the chassis.
CAUTION: Operate a Switch 4005 chassis with all four fans running. If one fan in
a fan tray fails, replace the fan tray as soon as possible.
a fan tray fails, replace the fan tray as soon as possible.
Location
Requirements
Requirements
Install the Switch 4005 in an area that meets the following location requirements:
■
The surface on which you want to place the Switch 4005 chassis is level.
■
The power source is within approximately 2 meters (6.6 feet) of the location
where you plan to install the Switch 4005.
where you plan to install the Switch 4005.
■
Each of the power supplies is connected to its own dedicated circuit. Do not
connect the power supplies to a single power strip.
connect the power supplies to a single power strip.
■
There is a sufficient amount of space on each side of the Switch 4005 chassis
to accommodate any cables along the side of the chassis.
to accommodate any cables along the side of the chassis.
■
There is at least 91.4 cm (36 in.) at the back of the chassis to service power
supplies and fans.
supplies and fans.
■
If the chassis is the first device in your rack, then mount it about 10.2 cm (4 in.)
above the floor.
above the floor.
Table 2 Environmental Specifications
Operating temperature
1
0 °C to 50 °C ambient
2
(32 °F to 122 °F)
Operating humidity
10% to 90%, noncondensing
Storage temperature
-40 °C to 66 °C
(-40 °F to 151 °F)
(-40 °F to 151 °F)
Storage humidity
10% to 90%, noncondensing
1
Switch operating temperature is the temperature of the environment in which the switch is installed.
2
Ambient air is room air (more specifically, the air drawn into the switch by installed fans to cool
installed switch components).