click to enlarge       46kb
                                                                                                                                      (shown with dipole antenna)

     The Base Transceiver determines the ambient visibility and then transmits instructions to a CMS to display the proper warning message. The devise will automatically display different messages to properly reflect the road conditions, the text and amount of information is user defined. For example, message 1 may be 'Clear Road', 2 - 'Slight Fog at Bridge', 3 - 'Thick Fog at Bridge', 4 - Dense Fog at Bridge', 5 - 'Extremely Dense Fog at Bridge'

     Features for Base Transceiver:
NEMA Enclosure with lock hasp.
Antenna Options:
          Internal - not available on metal enclosures
          Dipole - 7 mile range¹
          High Gain - 20 mile range¹
Power: 
          Accepts either 115VAC or 12VDC customer supply.
          On board 24VAC can be used to provide power to Emergency Vehicle Optical Control Devices such as the 3M® Opticom® system or the Tomar® 1790-1014 system. These devices may be mounted directly on top of the enclosure and the system will transmit a user selected massage when activated. 
900MHz, Spread Spectrum modem.
Two, 18A, on board control relays can be used to control warning strobes or gate arms.
Three additional inputs to monitor external signals.

     Features for CMS Transceiver:
Watertight, Polycarbonate enclosure.
Antenna Options:
          Internal - 1 mile range¹
          Dipole - 7 mile range¹
          High Gain - 20 mile range¹ 
LED indicator to provide visual signal and operating status.
900MHz, Spread Spectrum modem.
Two, 1A latching signal relays to control, for example, warning strobes.
Three inputs for monitoring external signals.

     Features for Visibility Sensor:
Operating temperature: -40 to +50C
Protection degree: IP 68 (waterproof)
Anodized Aluminum
15 meter data cable connects to the Base Transceiver.
     pdf data sheet

¹ Range calculations are based on 9600 baud, line of site. Range may vary with individual location.

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Last modified: April 13, 2002