| | | | | | | Broadata Communication’s self-healing, add-drop, serial data modem allows for 84 different data collection points along the Route 5 Highway Corridor. | | | | | The New York State Department of Transportation recently purchased BCI 532 and 512 Series fiber optic data modems for use on the Route 5 Corridor state highway. The units are used to collect data from 84 different intersections along the highway to help in traffic signal control issues.
The challenge was to provide add/drop traffic signal data collection and control for 84 highway intersections while maintaining system integrity in the face of a specific equipment failure. The NYSDOT requires constant data collection from numerous points along a highway to aid in controlling traffic signals during changing road conditions created by accidents or heavy commuting. This data stream must be continuous and failure of equipment at any one point cannot disrupt the data streams being sent back to the central control room.
The solution was BCI’s 532 Series. The 532 Series allows for fiber optic transport of data channels in a dual redundant ring or linear bus architecture. Highway data collection can be achieved through the use of a dual redundant, self-healing fiber optic ring architecture. BCI’s 532 Series transport RS-232/RS-422/RS-485 data utilizes a Master - Slave modem configuration along a counter rotating fiber optic ring. If data transmission is disrupted at any one point in the ring, the BCI 532 sends the data back out on the alternative fiber in the other direction.
| | This guarantees that all data collection is uninterrupted even though equipment or fiber optic cabling may fail. Hundreds of data collection points can be utilized while data integrity is preserved in the wake of equipment or fiber failure. These single data channel units are used to transport data from multiple traffic signal controllers to multiple locations. These 512 Series card based units allow for dense mounting in a 19” rack mountable card cage, powered by a single or redundant power supply card. | | | | | |
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