The Opticom™ Model 794 LED Emitter is a compact, lightweight, weather-resistant encoded signal device intended for use on priority vehicles. The model 794 emitter consists of an LED array with an integral power supply and the required cables. Accessory switch devices are also available. The operation of the device may be
customized through its interface software or remote coding unit.

The encoded signal pattern (composed of the individual vehicle class code and vehicle identification number) generated by the
model 794 emitter is determined after installation through the use of interface software or remote coding unit.

The model 794 emitter, when installed on authorized service and maintenance vehicles, may also be configured to utilize the automated range-setting feature of Opticom 700 Series Phase Selectors and Opticom 400
Series Discriminators. This feature refines and simplifies individual intersection setup and maintenance techniques. The model 794 emitter separates precisely timed pulses of infrared light at the base flash rate of approximately 10 or 14 Hz. It also interleaves programmed encoded pulses that carry the vehicle class and ID number information. These infrared pulses are sensed and processed by other Opticom Infrared system components to cause activation of the system.

The model 794 emitter is capable of being programmed via the model RC790 remote coding unit, eliminating any dependency on a computer. By simply pointing the RC790 at the model 794 emitter, the user can communicate vehicle class and ID, visible LED, disable mode, diagnostics and default settings with just pushes of a button.

Description of Models:

Opticom™ Model 794H LED Emitter: High-priority emitter
Opticom™ Model 794L LED Emitter: Low-priority emitter
Opticom™ Model 794T LED Emitter: Low-priority emitter with reduced output for transit signal priority applications
Opticom™ Model 794R Emitter: Range-setting emitter for high priority, low priority or probe frequency

Opticom Infrared System

More than 35 years ago the Opticom™ System started a revolution in traffic management and safety. Today the world is a far busier and much more crowded place—and the need for better-managed roadways is greater than ever. Now the Opticom system includes two distinct products: the Opticom™ Infrared System and the Opticom™ GPS System.

The Opticom Infrared System uses coded infrared emitters mounted on your emergency and/or transit vehicles to communicate with the intersection traffic controller to provide a temporary right-of-way for your vehicles. Proven effective at thousands of intersections throughout the world, the Opticom infrared system can dramatically improve safety at intersections while minimizing traffic disruptions, accelerating response times and improving service reliability.

Benefits for Emergency Services
Proven value in thousands of intersections and millions of priority responses.

• Improves safety by eliminating right-of-way conflicts at the intersection:
  • First-come, first-served secure authorization.
• Validates emergency vehicle status and authorizes signal preemption:
  • Secure, encoded infrared communication.
  • Identifies individual vehicles as it time-stamps and logs all activity.
• Helps produce faster, safer emergency response:
  • Improves response times by an average of 20%. ¹
  • Reduces crashes at intersections.¹

¹ Traffic Signal Preemption for Emergency Vehicles: A Cross-Cutting Study. January 2006, Federal Highway Administration, et al.

Benefits for Traffic Engineers
Comprehensive doesn’t have to mean complicated.

• Integrates easily into current cabinets:
  • Phase selector plugs directly into CA/NY 170 input files.
  • Compatible with traffic controllers with internal preemption
• Enables conflict-free use among emergency service and transit vehicles:
  • First-come, first-served authorization.
  • Priority differentiation.
• Minimizes traffic disruptions:
  • Adjustable activation range provides optimal green time and minimizes traffic disruption.
• Provides complete call history log:
  • Confirms authorization, time of priority, direction, duration and confirmation of vehicle passage for up to 1,000 events.

Benefits for Mass Transit Operations
The green-light advantage for improving schedule performance.

• Improves on-time arrival and maximizes route operations:
  • May improve bus route timing by 10%² or more without adversely affecting cross traffic.
• Integrates with existing systems:
  • Supports J1708 standard.
• Produces a normal, natural advantage:
  • Directional communication does not disrupt parallel intersections.
• Enables automated operation:
  • Interfaces with AVL for conditional priority.
• Decreases vehicle maintenance:
  • Reduced stop-and-go driving lessens brake wear and permits better vehicle utilization.
• Reduces environmental impact:
  • Improves fuel consumption of vehicles.

Opticom IR:

Documentation

Important documents, manuals and technical bulletins for
Opticom Infrared systems:

Opticom Infrared System Technical Literature Links

Installation Manuals

Warranty Information

Additional Notes & Technical Bulletins

Specification & Communication Protocol Documents

Product Brochures

 Opticom Infrared System (1.4 MB)

 Opticom Infrared System Model 792 Emitter (192 KB)

 Opticom Infrared System Model 492 Emitter (188 KB)

 Opticom Infrared System Model 9592 Emitter (164 KB)

Assistance to Firefighters Grant (AFG) Program

SAFETEA-LU Surface Transportation Program (STP)

SAFETEA-LU Highway Safety Improvement Program (HSIP)

SAFETEA-LU Congestion Mitigation/Air Quality (CMAQ)

SAFETEA-LU FTA (Transit)

Downloads

Opticom Funding for SAFETEA-LU (116 KB)

Opticom AFG Program Application Instructions (148 KB)

Opticom Sample AFG Grant Proposal (Hudson, OH) (56 KB)

Opticom Sample, Narrative for AFG Program Application (72 KB)

ITS Link Suite (Rev. 3.0) (15.5 MB)

ITS Link Suite (Rev. 3.0) Release Notes (48 KB)

Opticom GPS System Firmware Tools

Technical Bulletin, Opticom GPS System Firmware Upgrade Instructions (243 KB)

READ ME, Opticom GPS System Firmware 1.0 (17 KB)

Release Notes, Opticom GPS System Phase Selector Firmware – Revision 1.10 (36 KB)

Release Notes, Opticom GPS System Radio Firmware -  Revision 0.86 (31 KB)

Release Notes, Opticom GPS System Vehicle Controle Module Firmware – Revision 0.74 (36 KB)

Release Notes, Opticom GPS System, GPS Receiver Firmware – Revision 3.2.4 (35 KB)

Opticom GPS System Firmware Package – Revision 1.0 (2.4 MB)

Opticom GPS System (580 KB)

Opticom™ GPS System

Videos & Multimedia

Emergency Vehicle Preemption Video (37.1 MB)

Transit Signal Priority Video (38.3 MB)

More than 35 years ago the Opticom™ System started a revolution in traffic management and safety. Today the world is a far busier and much more crowded place—and the need for better-managed roadways is greater than ever. Now the Opticom system includes two distinct products: the Opticom™ Infrared System and the Opticom™ GPS System.

The Opticom GPS System uses Global Positioning Satellite technology along with secure radio communications to gain preemption or priority at equipped intersections. The result is safer, more efficient traffic flow for both emergency service and transit vehicles.

Benefits for Emergency Services
Faster response for a world where every second counts.

• Improves safety by eliminating right-of-way conflicts at the intersection:
  • First-come, first-serve authorization
  • Vehicle descriptors enable streamlined coding activit
• Facilitates safe, efficient movement through turns:
  • Turn signal recognition and relay leads preemption in the intended direction.
  • Turn signal recognition clears right-of-way around corners.
• Integrates easily with industry standard communications applications:
  • Provides GPS data output for other on-board devices.
  • Interfaces with AVL for conditional priority, enabling automated operation.
• Provides precise activation and data reporting:
  • Activation is based on estimated arrival (ETA) and/or distance.
  • Superior preemption log accuracy improves liability identification.

Benefits for Traffic Engineers
Easy integration into your current intersection management system.

• Streamlines intersection installation and maintenance:
  • Single intersection radio/GPS unit receives information from all directions.
  • Accommodates hills, curves and varied distances without the need for advanced detectors.
• Minimizes traffic disruption:
  • Turn-signal-dependent mode recognizes the need for protected left turn, reducing potential traffic delays.
  • Adjustable activation based on ETA and/or distance enhances green time efficiency.
• Integrates easily into current cabinets:
  • Phase selector plugs directly into CA/NY 170 input files.
  • Compatible with most traffic controllers with internal preemption.
• Software enables implementation and management:
  • Software facilitates configuration, monitoring and diagnosis and produces system reports.

Benefits for Mass Transit Operations
Better schedule adherence through transit signal priority enables better schedule adherence, translating to increased rider satisfaction and lower impact on the environment.

• Provides precise activation of priority requests:
  • Activation can be based on ETA and/or distance, reducing traffic disruptions.
• Enables automated operation:
  • Interfaces with AVL for conditional priority, enabling automated operation.
• Integrates easily with industry standard communication applications:
  • Provides GPS data output for other onboard devices.