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(1) |
Two-way communication with the in-vehicle unit. |
| (2) |
Maximum of four light emitting and receiving units are controllable by one
controller. (two-way communication function and vehicle detection function) |
| (3) |
Capable of communicating with one vehicle per one light emitting and receiving
unit. (Small zone communication) |
| (4) |
Over-head type infrared beacon, a light emitting and receiving unit is installed
on each lane of the roadway. |
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