Chapter 5 - Installing Dual-Speed Hub
Before the Installation
Before installing a hub, users must make sure that they can provide their net-
work with a proper operating environment.
An optimal environment for a network must have these features:
- Power :
The hub must be provided with a power voltage ranging from
100 to 230 VAC (with an error margin of 10%) at 50 to 60Hz
(± 3Hz). The hub's power supply will automatically adjust itself
to the power available.
- Humidity :
The hub and indeed the entire network should be located in
the driest area possible. Humid places should be avoided, as
humidity can damage the equipment. The non-condensed
degree of humidity in which the hub can operate ranges from
5 to 95 percent.
- Temperature : While the hub can be stored in places with temperatures
ranging from 0ûC to 40ûC (32ûF to 104ûF), it should be operat-
ed only in areas with temperatures ranging from -25ûC to
70ûC (-13ûF to 158ûF). Make sure that the hub is not located
near a heat source.
Installing a Dual-Speed Hub
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