User's Manual
Installation and Safety Guide
25
Safety
WARNING: In a domestic environment this product may cause radio 
interference in which case the user may be required to take adequate measures.
ELECTRICAL NOTICES 
WARNING: ELECTRIC SHOCK HAZARD 
To prevent ELECTRIC shock, do not remove the cover. No user-serviceable 
parts inside. This unit contains HAZARDOUS VOLTAGES and should only be 
opened by a trained and qualified technician.
LIGHTNING DANGER 
DANGER: DO NOT WORK on equipment or CABLES during periods of 
LIGHTNING ACTIVITY.
CAUTION: POWER CORD IS USED AS A DISCONNECTION DEVICE. TO 
DE-ENERGIZE EQUIPMENT, disconnect the power cord.
ELECTRICAL - TYPE CLASS 1 EQUIPMENT 
THIS EQUIPMENT MUST BE EARTHED. Power plug must be connected to a 
properly wired earth ground socket outlet. An improperly wired socket outlet 
could place hazardous voltages on accessible metal parts.
PLUGGABLE EQUIPMENT, the socket outlet shall be installed near the 
equipment and shall be easily accessible.
CAUTION: Air vents must not be blocked and must have free access to the 
room ambient air for cooling.
OPERATING TEMPERATURE: AR750S-DP routers are designed for a 
maximum ambient temperature of 50 degrees C.
ELECTRICAL - AC MAINS CIRCUIT OVERLOADING 
When installing product, consideration must be given to the accumulative 
nameplate ratings when connecting the equipment to the AC supply wiring.
CAUTION: MECHANICAL LOADING - Mounting of the equipment in the 
rack should be such that a hazardous condition is not achieved due to uneven 
loading. 
Lithium Battery - Should only be changed by authorised service personnel. 
CAUTION: Danger of explosion if battery incorrectly replaced. Replace only 
with Lithium Battery, type CR2032, and dispose of in accordance with the 
manufacturer’s recommendations and all local codes. 
ALL COUNTRIES: Install product in accordance with local and National 
Electrical Codes.










