Product overview
The HD-R320 provides receiving and module connections for fine-pitch LED cabinets. It supports common driver ICs and most PWM IC modules, configurable card order and smart screen setup. Match the HUB320 connection and recommended cabinet layout when replacing a receiver.
Product specifications
| Parameter | Specification |
|---|---|
| Model | HD-R320 |
| Application | Fine-pitch LED screens |
| Module connections | 8 × HUB320 |
| Overview control range in V1.0 | 256 × 512 pixels |
| Recommended layout in V1.0 table | 128 × 768 pixels; recommended width ≤128 pixels |
| Communication | 2 × Gigabit Ethernet ports |
| Scan support | Static to 1/64 scan |
| Driver IC support | Common ICs and most PWM IC modules |
| Grayscale | 256–65536 |
| Power interfaces | 2 × DC power; standard 5 V supply recommended |
| Multi-card connection | Configurable card order |
| Built-in test | Display brightness uniformity and module flatness |
Configuration and selection
Use the exact R320 model and HUB320 wiring definition in the retained PDF. Check the sender, receiver revision and module routing as one configuration rather than assuming a replacement card will inherit the old settings.
Frequently asked questions
Does the HD-R320 use HUB75 or HUB320 interfaces?
This model has eight HUB320 interfaces. Match the module and cable connection before selecting a replacement.
What control range should I plan for?
V1.0 describes 256 × 512 pixels in the overview and recommends a 128 × 768 layout with width no greater than 128 pixels in its parameter table. Use the recommendation and confirm the actual module configuration.
Can the Ethernet ports be interchanged?
Yes. The interface description says the two Gigabit Ethernet ports are interchangeable.
Can it be cascaded with other receiving cards?
Yes. Receiving cards can be arranged in a configurable order within the compatible Huidu sending system.
What supply voltage should be checked before installation?
V1.0 recommends a standard 5 V supply but contains different voltage ranges in its tables and interface notes. Confirm the permissible range for the actual board revision.
Original product images and diagrams
Downloads and related information
HUIDU HD-R320 LED Display Cascading Dedicated Receiving Card Specification
