LED-550DS video processing with SDI
The Magnimage LED-550DS is the LED-550D series configuration with an SDI input and loop module. It combines video scaling, source switching and dual-picture display for LED screen systems.
Switching and image control
The original feature list specifies 16 switching effects, including fades. Custom DVI input and output settings support matching the source to the screen. Other functions include hot backup, full or partial image display, freezing, text overlay, brightness adjustment, test patterns, templates and multi-unit cascading.
Input specifications
The original input table is retained below. It lists two DVI inputs, whereas current series documentation distinguishes standard DVI from an additional expansion input. Confirm the actual rear-panel connections; do not assume all series expansion options are fitted together.
| Ports | No. | Resolution Specification |
| AV | 2 | PAL NTSC SECAM |
| VGA | 2 | VESA |
| DVI | 2 | VESA(1080i) |
| HDMI | 1 | HDMI 1.3 |
| SDI* | 1 | 3G SDI |
Output specifications
| Ports | No. | Resolution Specification |
| DVI loop | 1 | Same as DVI input |
| SDI loop* | 1 | 3G SDI |
| VGA | 1 | 1024×768/60Hz/75Hz/85Hz/100Hz/120Hz 1280×1024/60Hz 1440×900/60Hz 1680×1050/60Hz 1600×1200/60Hz 1600×1200/60Hz-Reduced 1920×1080/60Hz/50Hz 2560×816/60Hz 1920×1200/60Hz 2048×640/60Hz 2560×816/60Hz 2304×1152/60Hz 2048×1152/60Hz 1024×1280/60Hz 1536×1536/60Hz Customized output resolution: Horizontal Max Resolution 3840pixel ; Min 640 Vertical Resolution: Max 1920; Min 480 |
| DVI | 2 |
The SDI input and loop are expansion functions within the 550D family and identify the 550DS configuration. The custom width and height limits are separate; they do not establish a simultaneous 3840 × 1920 output timing.
Installation specifications
| Power supply | 100~240 AC 50/60Hz |
| Power consumption | 25W |
| Operation temperature | 0~45℃ |
| Product dimension(LWH) | 483.0×288.0×54.5mm |
| Packing dimension(LWH) | 555.0×395.0×125.0mm |
| N.W. | 2.6kg |
| G.W. | 4.1kg |
Document differences: The original listing specifies 25 W consumption and 483.0 mm chassis length. The current manufacturer parameter page specifies 20 W and 484.0 mm, while the series brochure lists 483.0 mm. Confirm the supplied hardware revision and nameplate; the values are not interchangeable.
Product images


Frequently asked questions
1. What is the difference between LED-550D and LED-550DS?
Magnimage identifies LED-550DS as the 550D-series version with an SDI input and loop expansion module.
2. Does the SDI loop provide an independently scaled output?
It is a loop connection for the SDI signal. Use the processor’s listed program outputs for the processed display signal.
3. Can it show two pictures?
Yes. Dual-picture display is included in the listed feature set.
4. Does the maximum width mean 3840 × 1920 output is supported?
No. Width and height limits are stated separately. Confirm the exact resolution, refresh rate and downstream controller compatibility before configuring the screen.





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