DFB 2.0 – 8" Series Driver Feedback Sign

Part Numbers: M75-D2430-0002, M75-D2430-0004

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

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