Installation Instructions
Installation and Operator Handbook Installation Instructions
AMX–MA–00653 Issue 0.03 (USA) 3
3.3 SITE REQUIREMENTS
Before installing the DRB-25 at the operating site, the following details regarding antenna installation and
safe operating distances, desk or floor space, rack clearance and lightning protection should be considered.
3.3.1 Antenna Installation and Safe Operating Distances
Use only manufacturer or dealer supplied antenna.
Antenna Minimum Safe Distance: 70 cm, 50% Duty Cycle.
Antenna Gain: zero dBd referenced to a dipole.
The Federal Communications Commission has adopted a safety standard for human exposure to RF (Radio
Frequency) energy which is below the OSHA Occupational Safety and Health Act) limits.
Antenna Mounting: The antenna supplied by the manufacturer or radio dealer must not be mounted at a
location such that during radio transmission, any person or persons can come closer than the above indicated
minimum safe distance to the antenna i.e. 70 cm.
To comply with current FCC RF Exposure limits, the antenna must be installed at or exceeding the minimum
safe distance shown above, and in accordance with the requirements of the antenna manufacturer or supplier.
Base Station Installation: The antenna should be fixed-mounted on an outdoor permanent structure. RF
Exposure compliance must be addressed at the time of installation.
Antenna Substitution: Do not substitute any antenna for the one supplied or recommended by the
manufacturer or radio dealer. You may be exposing person or persons to excess radio frequency radiation.
You may contact your radio dealer or the manufacturer for further instructions.
Warning: Maintain a separation distance from the antenna to a person(s) of at least 70 cm. You, as the
qualified end-user of this radio device must control the exposure conditions of bystanders to ensure the
minimum separation distance (above) is maintained between the antenna and nearby persons for satisfying RF
Exposure compliance. The operation of this transmitter must satisfy the requirements of 0ccupational
/Controlled Exposure Environment, for work-related use. Transmit only when person(s) are at least the
minimum distance from the properly installed, externally mounted antenna.
3.3.2 Desk/Floor Space or Rack Mounting Considerations
The DRB-25 is 19 inches (483 mm) wide (standard 19 inch rack mountable), 14 inches (355 mm) high, 17.4
inches (440 mm) deep, and weighs 58 lb (26 kg) for a single radio configuration, or 81 lb (37 kg) for a dual
radio configuration. When mounting the DRB-25 Cabinet:
• Ensure that the DRB-25 is securely mounted.
• Ensure that the DRB-25 air vents are clear of obstructions.
• Provide sufficient space on all sides to of the DRB-25 to allow adequate access to the equipment and
cables.
• Ensure that there is adequate space for entry of external cables (antenna and AC power cables) at the
rear of the unit without the need for small radius bends.