GAOQIAO Catalog Page

Traffic Signal Board Manufacturer Products

Browse traffic signal board products from GAOQIAO for road safety, lane control, arrow indication and customized project needs.

A traffic signal board is the standardized control PCB that runs the timing and I/O logic for a fixed-configuration signalized intersection, as opposed to a full controller cabinet. Traffic signal boards are the right choice for compact, lower-power intersections where a full controller cabinet is over-spec: pedestrian crossings, school zone flashers, single-lane ramp meters, and small rural intersections. For project buyers, the critical decisions are phase count, output current rating, communication interface, and enclosure rating. GAOQIAO has manufactured traffic signal boards for export since 2008, with deployments across 60+ countries.

Technical Specifications

Parameter	Standard Range
Phase count	2 / 4 / 8 phase versions
Output current	2 A or 5 A per channel, 16-32 channels
Operating voltage	AC 85-265 V or DC 12 V / 24 V
Detector inputs	4 to 16 vehicle + 4 to 8 pedestrian
Communication	RS-485, Ethernet, optional 4G module
Programming interface	USB, Ethernet web UI, optional LCD keypad
Enclosure	Open frame, IP65 box, or DIN-rail mount
Operating temperature	-40 °C to +70 °C
MTBF	> 100,000 hours
Compliance	CE, RoHS, EN 12675 equivalent

How to Choose the Right Traffic Signal Board

Traffic signal board selection is dominated by the intersection geometry and the cabinet environment. A board that works in an indoor test bench may fail in a metal cabinet at 70 °C ambient temperature if it is not specified for industrial temperature grade.

Output current is the most under-specified variable. Each LED signal head draws 0.5-1.5 A depending on size, and a 4-phase intersection with 8 heads plus pedestrian heads can draw 15-20 A peak. Specify the total worst-case load, not just the per-channel maximum, and match the board's output current to the load with a 25% margin.

Programming interface affects long-term maintenance cost. Boards that can only be programmed via a proprietary keypad require the operator to maintain a stockpile of keypads and train staff on the menu tree. GAOQIAO boards support both the traditional keypad and a web-based interface accessible via Ethernet or USB, which dramatically reduces long-term maintenance overhead.

Surge protection is the most overlooked specification. A signal board in an outdoor cabinet is exposed to induced surges from nearby lightning strikes and from the signal heads themselves. Specify surge protection on both the power input and the signal outputs, with a documented 6 kV / 3 kA combination wave rating.

Key Features and Benefits

Web-Based Programming Interface

Every GAOQIAO traffic signal board supports programming via a standard web browser over Ethernet or USB. This eliminates the proprietary keypad dependency that creates long-term maintenance overhead on most signal boards.

Industrial Surge Protection

All inputs and outputs include 6 kV / 3 kA combination wave surge protection as standard. This eliminates the field failures caused by induced surges from nearby lightning and from the signal heads' inductive switching.

Flexible Phase Mapping

Phase mapping is configurable via the web interface rather than hard-wired on the PCB. The same board can be deployed as 2-phase, 4-phase, or 8-phase by changing the configuration, which simplifies spare parts stocking for distributors and EPC contractors.

Common Applications

Traffic Signal Board products are specified in a wide range of projects:

Pedestrian crossing with HAWK signal (2-phase board)
Single-lane ramp meter (2-phase high-current board)
Small urban intersection (4-phase board)
School zone flasher (2-phase with time-of-day schedule)
Construction zone temporary signal (with portable enclosure)
Rural intersection solar-powered (low-power DC version)
Parking garage signal (low-voltage DC variant)

Related GAOQIAO products: customized board, wired traffic signal controller, solar wireless controller.

Installation and Maintenance

Installation is straightforward: mount the board in the supplied enclosure (or DIN-rail mount in an existing cabinet), land the field wiring on the terminal blocks, apply power, and upload the timing plan via the web interface. A typical install is 2-3 hours for an electrician familiar with traffic signal wiring. Maintenance is limited to the annual surge protection device check and a 5-year firmware update cycle (firmware updates are free and applied via the web interface).

Certifications and Compliance

Manufactured under ISO 9001:2015 with full CE, RoHS, and EN 12675 equivalent compliance. Each board ships with a test report, programming manual, and 3-year warranty. Surge protection documentation includes the actual test waveform applied to each channel during production test.

Why Choose GAOQIAO

GAOQIAO has manufactured traffic signal boards for export since 2008. Our 12,000 m^2 Nanjing facility produces 5,000+ boards per month, with custom voltage and phase configurations from a 100-unit minimum. Standard configurations ship in 7-15 days. The web-based programming interface eliminates the long-term keypad dependency that creates downtime on competitor products.