SMPTE 2110 - CBA Glossary
📖 Glossary

SMPTE 2110

SMPTE 2110 is the standard for studio broadcasting over IP networks—replacing legacy SDI (Serial Digital Interface) as the signal distribution method inside broadcast control rooms, OB trucks, and production facilities. Instead of point-to-point SDI cables, SMPTE 2110 transports video, audio, and metadata over Ethernet networks using standardized formats and timing.

The technical advantage: traditional SDI cables work for short distances (100 meters) and require expensive, inflexible infrastructure. SMPTE 2110 over Ethernet works over long distances, scales to many simultaneous feeds, and uses standard networking equipment. A 24-camera facility that would require complex SDI routing can use standard Ethernet switches and network infrastructure.

At Creative Broadcast Agency, we're increasingly designing productions using SMPTE 2110 for signal distribution within OB trucks and the MCR, particularly for large-scale events. The Esports World Cup infrastructure combined legacy SDI (for reliability and proven equipment) with SMPTE 2110 (for scalability and ease of management).

SMPTE 2110 requires careful timing synchronization. Every video frame must arrive at every destination at the precise moment it's needed. The standard defines how video (with specific frame rates), audio (with synchronous timing), ancillary metadata, and timecode all travel together over IP with precise frame alignment. Get timing wrong, and everything de-syncs.

This precision is why SMPTE 2110 doesn't simply work over any internet connection. Public internet is asynchronous (packets arrive when they arrive). Broadcast SMPTE 2110 requires managed networks with guaranteed latency, professional switches, and no congestion. For internal studio networks, this is fine. For public internet, you need different approaches (SRT for contribution, HLS for delivery).

Equipment supporting SMPTE 2110 still focuses on high-end broadcast—Grass Valley Ignite, Evertz, Grass Valley Ignite. Consumer-grade equipment hasn't adopted it yet. For facilities without massive investment in IP infrastructure, traditional SDI or hybrid approaches (SMPTE 2110 within facilities, SDI to cameras, SRT for remote contribution) remain practical.

FAQ
Should we migrate our studio from SDI to SMPTE 2110?
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If you have 12+ cameras, complex routing, or plans to scale, yes. SMPTE 2110 is significantly more flexible and maintainable at scale. If you have 4-6 cameras and existing SDI infrastructure that works, migration cost might not justify the benefit. We evaluate your facility's growth plans and current infrastructure during consultation.
Does SMPTE 2110 reduce latency compared to SDI?
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Latency is similar (1-2 frames) for both well-designed systems. SMPTE 2110 advantage is scalability, not latency. The appeal is operational: managing 50 feeds over Ethernet is easier than managing 50 SDI cables.
Can we run SMPTE 2110 over regular office internet?
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No. Office internet has variable latency and no traffic prioritization. SMPTE 2110 requires managed networks with priority queuing and guaranteed bandwidth. You need dedicated Ethernet infrastructure, often separate from office data networks. This is a significant cost that vendors often under-communicate.
What's the bandwidth requirement for SMPTE 2110 feeds?
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A single 1080p60 uncompressed video feed is approximately 6 Gbps—much higher than streaming bitrates because there's no compression. Add audio and metadata, and it's 7+ Gbps per feed. For multiple feeds, dedicated fiber becomes necessary. This is why compression standards like JPEG 2000 are sometimes used within SMPTE 2110, reducing bandwidth but adding processing complexity.

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