Specifications
Power Requirements
Voltage: 89 to 135 VAC
Frequency: 57 to 63 Hz
Consumption: 25 Watts
Physical Dimensions
9"H X 15"W X 8"D
(229mm H x 381mm Wx 203mm D)
Temperature Range
-30 F to +165 F
(-34 C to +74 C)
Highlights
EPAC300 TS-1 and TS-2
Exceeds NEMA TS-1 and TS-2 standards for traffic controllers. Front Panel multi-line alphanumeric backlit display for all operational parameters and states. Fully prompted, menu driven programmability.
EEPROM technology is used to retain all timing and control parameters even during power outages. No batteries are required for retention of traffic parameters.
Six Modes of Coordination
- Permissive Mode
- Yield Mode
- Permissive Yield Mode
- Permissive Omit Mode
- Sequential Omit Mode
- Full Actuated Mode
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Adaptive Traffic Control
- 16 Vehicle Phases
- 16 Pedestrian Phases
- 4 Timing Rings
- 16 Overlaps
- 80 Detectors
- Adaptive Maximum Routines
- Adaptive Protected/Permissive Routines
- Coordination Virtual Split Routine
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Reports
- Local Alarm Log, stores up to 120 events
- Comm Fault Log, stores up to 60 events
- Detector Fault Log, stores up to 60 events
- System Detector Log, stores up to 96 events
- MOE Log, stores up to 24 events
- Speed Log, stores up to 24 events
- Volume Count Log, stores up to 72 events
- Cycle MOE Log, stores up to 60 events
- MMU Fault Log, stores up to 10 events
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Preemption/Priority
- 6 Preempt Routines
- 6 Priority Routines
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Diagnostics & Status Displays
A resident diagnostic program is standard in the EPAC 300 Series Controller Unit. In addition to the extensive displays to aid in intersection setup, monitoring, and operation, the resident diagnostic program enhances the maintenance and troubleshooting of the controller assembly.
- Monitor Compatibility Diagnostics
- Monitor Field Status Diagnostics
- Cycling Diagnostics
- Detector Diagnostics
- Port 1 Message Display
- Port 2 Comm Status Display
- Port 3 Comm Status Display
- Hardware I/O Status Display
- MMU Status Display
Preemption/Priority
Internal Preemption is a highly flexible routine operating within the EPAC 300 Series Controller Unit. Included are:
- Preempt In Control, Interval Timing, & Interval Countdown
- Individual Preempt Status & Timing
- Individual Priority Status & Timing
Hardware Design
The EPAC 300 Series Controller Unit is designed for efficient operation and ease of maintenance. The metal chassis is designed for easy access to the boards for testing without disassembly.
To insure the accuracy of traffic control parameters, even during power outages, EEPROM technology is used to retain all timing and control parameters. No batteries are required for retention of traffic parameters. Event logging and Time Base clock utilize RAM memory for those functions with battery support.
Six Modes of Coordination
Permissive Mode provides non-actuated coord phase, vehicle and pedestrian, with permissive windows opened phase by phase to the non-coord phases.
Yield Mode provides non-actuated coord phase vehicle and pedestrian, with a single permissive window for all non-coord phases.
Permissive Yield Mode provides for actuated coord phase vehicle and pedestrian, with permissive windows opened phase by phase to the non-coord phases. Additionally, the coord phase vehicle may extend its green time at the
beginning of the first permissive window.
Permissive Omit Mode provides operation similar to
Permissive Yield except that the coord phase, once
terminated, is prevented from occurring prior to the end
of the last permissive.
Sequential Mode provides operation similar to Permissive Yield except the permissive is a phase by phase sliding window (only one phase in a ring will be allowed service at any time).
Full Actuated Mode provides operation similar to
Permissive Yield except that any phase may be serviced and reserviced in the standard sequence following the first permissive and through the last permissive.
Adaptive Traffic Control
Simple or highly complex control including:
- 16 Vehicle Phases
- 16 Pedestrian Phases
- 4 Timing Rings
- 16 Overlaps
- 80 Detectors
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Adaptive Maximum Routines which are enabled via Time Base offer three separate Step values to cause the running maximum to increase or decrease smoothly
based on current traffic conditions. Separate Dynamic Maximum parameters are available for each Step value.
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Adaptive Protected / Permissive Routines measure the volume of left turn vehicle traffic and available gap
windows in the conflicting through-vehicle traffic to
determine whether the Left Turn should operate protected or permissive.
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Coordination Virtual Split Routine provides for actuated coord phase vehicle and pedestrian modes. This control provides for a period of time of each cycle which is
distributed to the Coord Phase(s) or non-coord phases, based on Coord Phase vehicle traffic activity.
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Coordination Adaptive Split Routines which are enabled via Time Base to adjust split times smoothly based on
current traffic conditions.
Controller assemblies with TS 2 Detector Racks provide increased capability, consume less power and provide
additional diagnostic data to the Controller Unit via the SDLC port. The Controller Unit can take corrective action much earlier than it could based on internal diagnostics.
Controller assemblies with TS2 Monitors provide
additional diagnostic data to the Controller Unit via the SDLC port.
Time Base Control
Internal Time Base Control is a highly flexible routine operating within the EPAC 300 Series Controller Unit. Included are:
- 250 Events for the control of Pattern Selection, Free, Flash, Dimming, Detector Diagnostic Parameters,
System Detector Logging, 3 Auxiliary Functions, 8
Special Functions, 16 Traffic Functions
- 99 Day Programs
- 10 Week Programs
Security
The EPAC 300 Series Controller Unit provides for a user specified security code entry before data may be altered. This security code entry is not required to view any parameter. The EPAC300 Series Controller Unit also can disable security code requirements for perpetual access.
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