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C H A P T E R 2 Intel Express 100BASE-TX Stackable Hub
12
Site Preparation
Before you install the Express hub, prepare the installation site. Make
sure the operating environment meets the physical requirements of the
equipment.
Operating
environment
Requirement
Temperature Ambient temperature between 5° C and 40° C
(41° F and 104° F)
No nearby heat sources such as direct sunlight,
warm air exhausts, or heaters
Humidity Between 5% and 85% noncondensing
Ventilation Minimum 2 in (5.08 cm) on all sides for cooling
Adequate airflow in room or wiring closet
Operating
conditions
At least 6 ft (1.83 m) to nearest source of
electromagnetic noise (such as photocopy
machine or arc welder)
Service access Minimum 12 in (19.68 cm) front and rear for
service access and maintenance
Front and rear clearance for cables and wiring
hardware such as punchdown blocks
Power Adequate power source within 6 ft (1.83 m)
Table and shelf
installation
requirements
Approximately 13.25-in. (33.66 cm) by 19.25-in.
(48.90 cm) area on a level tabletop or shelf
Support for at least 10 lbs (4.5 kg) per Express
hub with filler panels installed in expansion and
media adapter slots
Support for at least 12.3 lbs (5.6 kg) per Express
hub with an optional NMM installed the
expansion slot and an optional media adapter
module installed in the media adapter slot
Rack installation
requirements
Standard 19-in (48.26 cm) EIA equipment rack
1.5 EIA rack-mount spaces available for each
Express hub
Wiring hardware Wiring hardware, such as punchdown blocks or
patch panels, in place before installing the hub