Sending Card

LED Sending Cards Explained

Sending cards form the bridge between video processing and LED panel communication, converting video signals into the proprietary data protocols that drive receiving cards.

Function and Position

In the LED video signal chain:

1. **Video Source** (camera, computer, media server) 2. **LED Processor** (scaling, color management) 3. **Sending Card** (protocol conversion, data serialization) 4. **Data Cable** (Ethernet or fiber) 5. **Receiving Card** (in each panel) 6. **LED Pixels**

Key Specifications

Output Ports: Number of data outputs (typically 4-16)

Pixels per Port: Maximum pixels each port can drive (650K to 2M+)

Total Capacity: Maximum total pixels across all ports

Data Rate: Bandwidth per port affecting refresh rate capability

Fiber Support: SFP cages for fiber output capability

Sending Card Types

Integrated: Built into LED processors (most common today)

• Brompton Tessera SX40 includes sending capability
• NovaStar VX series integrates sending
• Simplifies system, reduces cable runs

Standalone: Separate card installed in a computer

• NovaStar MCTRL series
• Legacy approach, still used for specific applications
• Installed in PCIe slot, receives DVI/HDMI

External Box: Standalone unit with video input

• Converts HDMI/SDI to LED data protocol
• Useful for simplified installations
• Limited processing features

Output Distribution

Sending card outputs distribute to panels in various topologies:

Direct: One output per panel (maximum flexibility)

Cascaded: One output to panel chain (reduced cabling)

Hybrid: Combination based on wall geometry

Chain length depends on:

• Receiving card cascade limit
• Pixel count per panel
• Desired redundancy level

Brand Ecosystems

Sending cards must match receiving cards:

Brompton: Sending integrated in Tessera processors

NovaStar: MCTRL series cards, VX series integration

Colorlight: S-series sending cards, processor integration

ROE: Uses Brompton or NovaStar systems

Configuration Process

Setting up sending cards requires:

1. **Physical Connection**: Install card, connect outputs to panels 2. **Software Configuration**: Use manufacturer software (NovaLCT, Tessera) 3. **Mapping**: Define how pixels map to physical panel positions 4. **Testing**: Verify all panels receive correct data 5. **Backup Configuration**: Save settings for recovery

Redundancy Options

Dual Sending Cards: Primary and backup sending paths

Loop Configuration: Data loops through wall, survives single break

Monitoring: Real-time status of data connections