Allied Telesis XS910/8, Руководство пользователя

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Chapter 2: Installation
29
Selecting a Site and Planning the Installation
Observe the following requirements when choosing a site for the
AT-XS910/8 switch:

If you plan to install the switch on a table, make sure that the table
is level and secured.

If you plan to install the switch on a wall, make sure that the wall is
straight and secured.

If you plan to install the switch in an equipment rack, make sure
that the rack is safely secured and it will not tip over. Devices in a
rack should be installed starting at the bottom, with the heavier
devices near the bottom of the rack.

The power outlet for the switch should be located near the unit and
should be easily accessible.

The site should provide for easy access to the ports on the back of
the switch and the LEDs on the front of the switch should be easily
viewed.

To allow proper cooling off the switch, air flow around the unit and
through its vents on the side should not be restricted.

Do not place objects on top of the switch.

Do not expose the switch to moisture or water.

Ensure that the site is a dust-free environment.

Use dedicated power circuits or power conditioners to supply
reliable electrical power to the network devices.

Table 4 contains the cabling specifications for the twisted pair
ports.
Table 4. Twisted Pair Cabling and Distances
Speed Type of Cable
Maximum
Operating
Distance
100 Mbps
Standard TIA/EIA 568A-compliant
Category 5 or TIA/EIA 568B-compliant
Enhanced Category 5 (Cat 5e)
unshielded Cabling
100 m (328 ft)
1 Gbps
2.5 Gbps
5 Gbps
Standard TIA/EIA 568C-compliant
Category 6 unshielded cabling
10 Gbps Standard TIA/EIA 568C-compliant
Category 6a unshielded cabling