Motorola Solutions Inc. 99FT5029 Benutzerhandbuch

December 2009

6816814H01

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Pre-Installation Considerations Equipment Ventilation

Humidity conditions should not exceed 95% relative humidity @ 50°C (122°F).

For equipment operating in an area which is environmentally controlled and with the repeater(s) rack 
mounted, the airborne particle level must not exceed 25 µg/m³.

For equipment operating in an area which is not environmentally controlled and with the repeater(s) 
cabinet mounted, airborne particle level must not exceed 90 µg/m³.

The repeater is equipped with a cooling fan that is used to provide forced convection cooling. When 
planning the installation, observe the following ventilation guidelines:

• Customer-supplied cabinets must be equipped with ventilation slots or openings in the front (for 

air entry) and back or side panels (for air to exit). If several repeaters are installed in a single 
cabinet, ensure ventilation openings surrounding each repeater allow for adequate cooling.

• All cabinets must have a least 15 cm (6 inches) of open space between the air vents and any 

wall or other objects. 

• When multiple cabinets (each equipped with several repeaters) are installed in an enclosed 

area, ensure appropriate ventilation and consider air conditioning or other climate control 
equipment to satisfy the temperature requirements stated under Section 

on page 1-1.

The repeater is equipped with a switching power supply, and this assembly operates from 100 – 240 
V

AC

 at 47– 63 Hz AC input power. A standard 3-prong line cord is supplied to connect the power 

supply to the AC source.

It is recommended that a standard 3-wire grounded electrical outlet be used as the AC source.

The outlet must be connected to an AC source capable of supplying a maximum of 280 W. For a 
nominal 110/120 V

AC

 input, the AC source must supply 5 A and should be protected by circuit 

breaker rated at 15 A. For a nominal 220/240 V

AC

 input, the AC source must supply 3 A and should 

be protected by a circuit breaker rated at 10 A.

Consideration should be given to the effects of overloading on overcurrent protection devices and 
supply wiring. Appropriate consideration of equipment ratings should be used when addressing this 
concern.

If the repeater is to be installed in an environment which is usually dusty, dirty, 
or does not meet the air quality requirements, then the air used to cool the 
repeater modules must be treated using appropriate filtering devices. Dust or 
dirt accumulating on the internal circuit boards and modules is not easily 
removed, and can cause such malfunctions as overheating and intermittent 
electrical connections.

The equipment must be installed near an easily-accessible AC source.