The document provides detailed specifications and functionalities of Tomar's optical signal processors (OSPs) including models 4140, 2140, and 2080, designed for traffic signal preemption and priority control systems. Each model can identify up to 65,000 vehicles per signal band, prioritize emergency over transit signals, and log significant events, featuring modular design for easy upgrades and maintenance. Additionally, the document covers installation requirements, performance capabilities, event logging specifications, and warranty information.