Cabletron Systems 2H253-25R Manuel D’Utilisation
Installing the Device
Installation
3-3
3.3.1
Tabletop or Shelf Installation
The following two subsections provide guidelines for installation on a tabletop or shelf.
Guidelines for Tabletop and Shelf Installations
Tabletop and shelf installations must be within reach of the network cabling and meet the
requirements listed below:
requirements listed below:
•
Locate the 2H253-25R within seven feet of an appropriately grounded power receptacle that
meets the power supply requirements listed in
meets the power supply requirements listed in
•
In a shelf installation, the shelf must support 13.5 kg (30 lb) of static weight for each
2H253-25R.
2H253-25R.
•
Maintain a temperature of between 5°C (41°F) and 40°C (104°F) at the installation site with
fluctuations of less than 10°C (18°F) per hour.
fluctuations of less than 10°C (18°F) per hour.
•
Maintain a 2-inch clearance from the left, right, and rear sides of the device to provide adequate
ventilation.
ventilation.
Installation
For a tabletop or shelf installation, locate the 2H253-25R within seven feet of its power source and
on an unrestricted free surface area as shown in
on an unrestricted free surface area as shown in
for power
connection instructions.
!
CAUTION
To ensure proper ventilation and prevent overheating, leave a minimum clearance space
of 5.1 cm (2.0 in) at the left, right, and rear of the 2H253-25R.
of 5.1 cm (2.0 in) at the left, right, and rear of the 2H253-25R.