Alcatel OS6855-24, Руководство пользователя по оборудованию

Страница: 95 / 204

Mounting OS6855-14/P14 and OS6855-U10 Switches General Installation Recommendations
OmniSwitch 6855 Series Hardware Users Guide September 2011 page 4-3
Recommended Clearances
Always allow adequate clearance at the front, rear, top, and sides of the switch. The following table shows
the recommended minimum clearances for adequate chassis cooling and access to cabling and
components at the front and rear of the chassis.
Note. Clearance recommendations at the front and rear of chassis are for access to cabling and
components only and are not intended as a specific air flow requirement.
Mechanical Loading
Mounting of the equipment in the rack should be such that a hazardous condition is not achieved due to
uneven mechanical loading.
Circuit Overloading
Consideration should be given to the connection of the equipment to the supply circuit and the effect that
overloading of the circuit might have on overcurrent protection and supply wiring. Appropriate consider-
ation of equipment nameplate ratings should be used when addressing this concern.
Reliable Earthing
Reliable earthing of rack-mount equipment should be maintained. Particular attention should be given to
supply connections other than direct connections to the branch circuit (e.g. use of power strips).
Location OS6855-14/P14 OS6855-U10
Top 0.875 inches (1/2 RU) for switches
operating in an ambient room temperature
of 60°C or less. 3.5 inches (2 RU) for
switches operating in an ambient room
temperature of 70°C (maximum allowable). 0.875 inches (1/2 RU) for switches
operating in an ambient room temperature
of 60°C or less. 3.5 inches (2 RU) for
switches operating in an ambient room
temperature of 70°C (maximum allowable).
Bottom No minimum clearance required. However,
be sure that the bottom of the chassis is not
in direct contact with any equipment below. No minimum clearance required. However,
be sure that the bottom of the chassis is not
in direct contact with any equipment below.
Sides 2 inches 2 inches
Rear 6 inches (see note below) 6 inches (see note below)
Front 6 inches (see note below) 6 inches (see note below)