Allied Telesis AT-x230-18GP - Manual (Page 45)

AT-x230-10GP and AT-x230-18GP Switches Installation Guide
35
All countries: Install product in accordance with local and National
Electrical Codes.  E8
Circuit overloading: Consideration should be given to the
connection of the equipment to the supply circuit and the effect that
overloading of circuits might have on overcurrent protection and
supply wiring. Appropriate consideration of equipment nameplate
ratings should be used when addressing this concern.  E21
Warning
Mounting of the equipment in the rack should be such that a
hazardous condition is not created due to uneven mechanical
loading.  E25
If installed in a closed or multi-unit rack assembly, the operating
ambient temperature of the rack environment may be greater than
the room ambient temperature. Therefore, consideration should be
given to installing the equipment in an environment compatible with
the manufacturer’s maximum rated ambient temperature (Tmra). 
E35
Caution
Installation of the equipment in a rack should be such that the
amount of air flow required for safe operation of the equipment is not
compromised.  E36
Warning
Reliable earthing of rack-mounted equipment should be maintained.
Particular attention should be given to supply connections other than
direct connections to the branch circuits (e.g., use of power strips).

E37
Warning
To reduce the risk of electric shock, the PoE ports on this product
must not connect to cabling that is routed outside the building in
which the device is located.  E40