Huidu HD-R3210 LED Receiving Card Overview
The Huidu HD-R3210 is an LED display receiving card for synchronous and asynchronous control systems. It provides 10 onboard HUB320F interfaces and supports 40 groups of parallel RGB data or 120 groups of serial data. Gigabit Ethernet communication, image rotation in 90-degree steps and onboard monitoring support LED screen configuration and maintenance.
Huidu’s overview describes the loading capacity as up to 260,000 pixels, while its parameter table specifies a maximum of 512 × 512 pixels at 60 Hz. These are the figures stated in the supplied specification; the usable load depends on the module resolution and interfaces used. Check the planned module layout before choosing the number of receiving cards.
Parameter table
| Parameter | Specification / function |
|---|---|
| Model | Huidu HD-R3210 (R3210) LED display receiving card |
| Control systems | Synchronous and asynchronous LED display control systems |
| Module interfaces | 10 onboard standard HUB320F interfaces |
| Data output | 40 groups of parallel RGB data or 120 groups of serial data |
| Supported sending types | Dual-mode sending box, asynchronous sending card, synchronous sending card and Huidu VP-series video processor |
| Supported modules | Common driver-IC modules and most PWM driver-IC modules; confirm the specific module and IC before selection |
| Scanning method | Static to 1/128 scan; supports point extraction and empty-point settings. The specification states that 138-series decoding does not support 1/8 scan or above (138, 5166, 5266, 2012, 2013, 7258, 32019). |
| Communication method | Gigabit Ethernet |
| Control range | Maximum loading capacity listed in the parameter table: 512 × 512 pixels at 60 Hz. Module configurations listed: P1.25 modules × 8; ≥ P1.5 modules × 10. Actual loading depends on the number of interfaces used and module resolution. |
| Multi-card connection | Receiving cards can be arranged in any order, with nanosecond-level synchronization as specified by Huidu |
| Grayscale | 256–65,536 levels |
| Smart settings | Smart configuration and screen-layout settings support different module arrangements |
| Test function | Built-in screen test for checking display brightness uniformity and LED module flatness |
| Communication distance | Within 80 m using Super Cat5 or Cat6 network cable, as specified in the manual |
| Image rotation | 0°, 90°, 180° and 270° |
| Point-by-point correction | Works with a grayscale correction system for point-by-point brightness and color correction, light/dark line adjustment and seam correction |
| Independent RGB gamma adjustment | Separate R, G and B gamma adjustment to address uneven low-grayscale performance and white-balance deviation |
| Module Flash | Correction coefficients can be stored and read back on modules equipped with Flash |
| Pre-saved screen | Displays a preset screen under conditions such as power-on, a disconnected network cable or no video-source signal |
| Monitoring function | Monitors the receiving card’s own temperature and voltage without external equipment and records running time |
| Configuration parameter backup | Parameters can be saved to a factory area and restored from that area after changes |
| Program backup | Two firmware programs are stored in the receiving card before shipment to help prevent lockup caused by an abnormal program update |
Compatibility and Selection
Match the HD-R3210 to the LED module’s HUB320F connection, driver IC, scan method and resolution. Support for most PWM IC modules does not mean every module configuration is interchangeable. Pay particular attention to the 138-series decoding restriction in the table.
For a replacement or new screen, provide the sending-device model, module model, driver IC, scan ratio, module resolution and cabinet layout. These details help determine compatibility and the required receiving-card quantity. Browse our Huidu products or contact us about your module configuration.
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Download Specification
Huidu HD-R3210 LED Display Receiving Card Specification (PDF)
The table above is based on the supplied Huidu HD-R3210 Product Specifications V1.0, pages 3–4. Consult the PDF for the connection diagram and hardware details.
Frequently Asked Questions
Does the HD-R3210 support synchronous and asynchronous systems?
Yes. The specification lists both control systems and supports dual-mode sending boxes, asynchronous and synchronous sending cards, and VP-series video processors.
How many HUB320F interfaces does the HD-R3210 have?
It has 10 onboard HUB320F interfaces and supports 40 parallel RGB data groups or 120 serial data groups.
What is the maximum loading capacity?
The specification’s parameter table lists 512 × 512 pixels at 60 Hz; its overview states up to 260,000 pixels. Actual loading depends on module resolution and the interfaces used. Check the module configuration rather than assuming the maximum applies to every screen.
Can the HD-R3210 rotate the display image?
Yes. The supported image orientations are 0°, 90°, 180° and 270°.
Does it support every scan mode and driver IC?
The stated scan range is static to 1/128 scan, but the specification includes a restriction for 138-series decoding: 1/8 scan or above is not supported for the listed decoding types. Common driver ICs and most PWM ICs are supported; confirm your exact module before ordering.
