Table of Contents
DFB 2.0 – 8" Series Driver Feedback Sign
Next-gen 8" driver feedback sign: Solar-powered radar display for traffic calming, speed awareness, and data collection
Table of Contents
Part Numbers: M75-D2430-0002, M75-D2430-0004
There is a -M at the end of the model number for MUTCD compliant rings
DFB 2.0 – 8" Series Data sheet
Overview
The DFB 2.0 8" Series is a next-generation radar speed display designed for modern roadway standards, reduced power demand, and seamless integration into the TraffiCalm platform. This driver feedback sign provides real-time speed display to encourage voluntary compliance while supporting traffic data collection for engineering and reporting purposes.
Key Features
- Next-generation low-profile design to reduce wind loading and simplify installation
- Reduced power consumption compared to previous iQ Series platforms
- Optimized for solar installations to support autonomous roadside operation
- Engineered to standard highway sign formats for consistent MUTCD-based installations
- Retains Stealth Mode, traffic data collection, and real-time speed feedback
Smart & Connected
- TC Speed Connect™ (Web): Full programming and configuration using the same interface as iQ Series platforms
- Integrated traffic data collection: Continuous speed monitoring supports engineering studies, compliance reporting, and long-term analysis
Application
- Traffic calming and speed awareness
- Engineering studies and before-and-after analysis
- Locations requiring driver feedback without enforcement
Compliance
- Fully MUTCD compliant for Driver Feedback Sign applications
- Designed to standard highway sign dimensions and formats in accordance with MUTCD guidance
- FCC Part 15 compliant
- Build America, Buy America compliant
- ISO 9001 certified manufacturing
- Informational device; not an enforcement system
Proven Safety Features
- Stealth Mode: Collects speed data with the display off
- Traffic Data Logging: Supports before-and-after studies and ongoing reporting
- Dynamic Feedback: Real-time driver speed display encourages voluntary compliance
- Static Speed Mode: Displays posted speed when required
Models & Sign Dimensions
Sign Type: W13-20 – Vehicle Speed Feedback (Full-Size)
- M75-D2430-0002 — Fluorescent Yellow-Green
- M75-D2430-0004 — Yellow
Display Size: 8 in character height Sign Size: 30 in height × 24 in width
Power Requirements
Operating Voltage: 12 VDC continuous
Power System Types:
- Solar-powered systems (panel, battery, charge control)
- Externally AC powered systems (AC-DC converter)
Solar and AC power systems are sold separately.
Operating Modes & Estimated Daily Energy Use
Mode Definitions:
- Standby: Display off, radar off
- Stealth: Display off, radar on (data logging)
- Radar with Feedback: Displays driver speed, radar on (data logging)
Estimated Usage Assumptions:
- Equinox: 12-hour daylight, 50% traffic load
- Winter Solstice: 8-hour daylight, 50% traffic load
Model | Standby | Stealth | Radar with Feedback (Equinox) | Radar with Feedback (Winter Solstice) |
M75-D3036-000X | 8.1 Wh | 27.1 Wh | 81 Wh | 69.8 Wh |
Radar Sensor
- Doppler radar
- K-band (24.15 GHz), license-free (FCC Part 15 compliant)
- Maximum detection range up to 1000 ft (304 m), depending on vehicle size, speed of approach, and configuration
Construction
- Sign: Aluminum 5052-H32, 0.125 in, not painted
- Enclosure: 1/8 in ABS, black
- Front face sheeting: 3M™ Diamond Grade™ high-visibility prismatic retroreflective sheeting
- NEMA 3R
Display
- Full-matrix electronic LED display
- 8 in high electronic speed characters
- Displays MPH or KPH
- Minimum: 1 MPH (1.6 KPH) in 1 MPH / 1.6 KPH increments
- Maximum: 99 MPH / 159.3 KPH
- LED color: Amber
- LED life: 100,000 hours
- Viewing angle: 30°
- Technology: AlInGaP
- "YOUR SPEED" legend: FHWA Highway Gothic 4.00 E
Environmental
Operating range: -29°F to 165°F (-34°C to +74°C)
Mounting & Mechanical
Standard mounting hardware (included with sign hardware set):
- Aluminum mounting bracket built into sign
- Flared leg brackets (Qty: 2)
- Stainless steel bolts, nuts, washers, and lock washers for 2.5–3.5 in PSST
Mounting hardware for poles such as U-bolts and/or banding is not provided. Follow local agency requirements for securing.
Software & Connectivity
- RS-232 and Bluetooth Class 1 or 2 adaptors (V1.0, V1.2, V2.0, V2.1, Enhanced Data Rate)
- TC Speed Connect™ (Web): Full system programming and configuration using the same interface as iQ Series platforms
- System health data: Battery voltage, internal temperature, ambient light (lux), display function status
- Speed data: Date/time stamps, vehicle count, minimum speed, maximum speed, 10 speed bins, average speed, 25th, 50th, and 85th percentile speeds
- Scheduling programmable up to 1 year in advance
- License-free, local configuration, scheduling, and data reports
Optional Components
- External flashing devices
- Supplemental mounting hardware
- External radar speed detection module (M75-SA300-RDR0)
Warranty & Support
- Warranty: 3-year limited (battery: 1-year)
- Support: Unlimited U.S.-based factory technical support
Notes
- Informational device only; not an enforcement system
- Suitable for solar-powered and AC-powered installations
- Designed for traffic calming, data collection, and driver awareness
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