NASSAU Radio Equipment Nassau Door A/S has a wide range of radio equipment for wireless operation of your industrial or private doors. At the following pages you will find a technical description of each product containing all relevant information you may need. Radio control offers more comfort since you can operate the door remotely. This is very convenient in your daily transportation through the door. E.g. when using trucks, cars, etc. Furthermore, the Nassau radio program gives a maximum flexibility, as each receiver responds to a multiple number of transmitters. Below you find information, which is important to take into account prior installing the radio equipment. Radio transmission Radio signals are placed in a ISM frequency area. These frequency bands are used in many applications and include the following frequencies: 27, 40, 315, 390, 433 and 868 MHz. The different frequencies may interfere with one another within the same range and frequency band of the radio control system. re, the self-learning function of the receiver always secures a unique transmission of codes between the transmitters, which prevent unintended use of the radio equipment. Installation In order to achieve an optimal transmission of the radio signal we recommend placing the receiver in a visible location, in which the transmitter can “see” the receiver. If the radio signal has to pass firm objects as wood, bricks or metal constructions the transmission range may be reduced. The following table gives an indication of the range of the Nassau radio equipment: Material Air - open landscape Wood and plastic surfaces Brick and concrete walls Reinforced concrete structures Metal walls and metal plating Range 100 % 80-95 % 60-90 % 10-50 % 0-10 % Radio receivers and antennas should not be located close to metal constructions as it may interfere with the radio transmission. A minimum distance of 0,1 meter must be maintained otherwise the transmission is reduced considerably. General specifications: • Frequency 868,3 MHz • Range (max.) From 100 m to 200 m (dependent on transmitter power) • Transmitters 2, 4, 10 and 999 • Receivers 1 and 3 • Power supply 12/24 VAC/DC en 230 VAC • Programmed instructions Program selector on the receiver and Security and programming The security is guaranteed through a specific transmission structure, which consists of a 48 bit telegram with more than 70 mill. combinations. Furthermo- 2
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