DirectLink: Simplifying AoIP Integration

What is DirectLink?

DirectLink is not a new technology, nor is it an automatic feature. It is Trinnov’s recommended way of connecting the Altitude^CI and the Amplitude¹⁶ when integrators want a simple, reliable audio link without the risks of network troubleshooting. By isolating audio traffic from control and internet access, DirectLink provides a predictable and repeatable path for AoIP in environments where reliability matters more than infrastructure-wide routing.

It is worth noting that AoIP is not always required. In many dedicated rooms, the most robust solution remains traditional DB25 analog connections between processor and amplifier. These are easy to deploy, require no configuration, and are practically bulletproof. They also provide one additional benefit: when AoIP is not used, the Altitude^CI processes audio at its native sampling rate, up to 192 kHz depending on channel count, instead of being limited by the typical 48 kHz ceiling of networked audio.

Still, a single Ethernet cable can be a compelling alternative, especially when bridging channels on the Amplitude¹⁶. AoIP avoids the complexity of breakout or custom cabling, offering a neat, space-efficient installation. DirectLink positions itself exactly here: an “in-between” solution that combines the elegance of AoIP with the simplicity of a direct analog link.

How DirectLink Works

The Altitude^CI features a unique three-port architecture, with one RJ45 port and two SFP cages that can accept copper or fiber modules.

The 3 network ports of the AltitudeCI

By default, Port 1 operates separately from Ports 2 and 3, creating two independent networks within the same processor.

• Port 1 is dedicated to the main network, managing internet connectivity, system control, firmware updates, and remote servicing.
• Ports 2 and 3 are reserved for audio-over-IP traffic.

DirectLink makes use of this separation. By connecting Port 2 or 3 directly to the Dante input board of the Amplitude¹⁶, using the supplied SFP-to-RJ45 module, a dedicated AoIP link is created between processor and amplifier. This link operates independently of the wider network, ensuring audio traffic remains protected and isolated.

The rest of the workflow remains straightforward. The processor is still controlled and calibrated via Port 1, connected to the main network as usual. Dante configuration is handled separately: the installer connects a laptop to the Amplitude¹⁶ Dante board and sets routing with Dante Controller. While not fully automatic, this approach is simple, robust, and easy to reproduce from one project to the next.

Benefits and Trade-Offs

Benefits

The main advantage of DirectLink is reliability. By keeping audio traffic off the main network, it eliminates the risk of dropouts or interference caused by other devices. It also simplifies deployment: there is no need to configure VLANs, QoS, or other IT features that might complicate installation. Every system behaves consistently, regardless of the client’s home network or infrastructure.

DB25 male to 8x XLR male breakout cable (can also be used for the Analog outputs of the AltitudeCI)

DirectLink also improves cabling management. When the Amplitude¹⁶ is used with bridged channels, AoIP removes the need for bulky DB25 connectors or custom breakouts. And because the Altitude and Amplitude¹⁶ share the same DAC architecture, the conversion stage is identical whether it happens inside the processor or inside the amplifier. This ensures consistent, transparent performance across the system as explain in The DAC Paradox article.

Trade-Offs

The simplicity of DirectLink comes with some limitations. By creating a closed loop between processor and amplifier, it removes Dante’s ability to route audio freely across a larger infrastructure. DirectLink is therefore best suited to contained systems where AoIP is used purely as the processor-to-amplifier link.

It is also not a true plug-and-play feature. Dante Controller is still required for setup, even if the topology itself is straightforward.

Finally, when AoIP is used, the system is bound by the network’s typical 48 kHz sampling rate. This contrasts with analog or AES/EBU connections, where the Altitude^CI can process audio at its native resolution, up to 192 kHz depending on channel count.

DirectLink in Context

DirectLink should be viewed as a tool for convenience and reliability, not as a replacement for proper AoIP system design. In small or modest networks, congestion may be unlikely, but Trinnov’s philosophy is to avoid risks altogether. DirectLink achieves this by isolating audio traffic, ensuring predictable and repeatable results without requiring advanced networking skills.

For integrators who want to leverage AoIP to its full potential, including complex routing and distributed infrastructures, Trinnov provides the training and documentation to build that expertise. DirectLink is simply the safe starting point: a way to ensure that every project can deliver the full performance of the Altitude^CI and Amplitude¹⁶, regardless of the integrator’s IT background.

Takeaway

DirectLink makes Audio over IP more approachable.

For installations that only require a clean, single-cable connection between the Altitude^CI and the Amplitude¹⁶, it offers a reliable and repeatable method that eliminates the risks of network congestion or misconfiguration.

For projects that demand more, the Altitude^CI is equally capable of supporting full Dante and AES67 networks, with advanced routing and hybrid system design.

Either way, the promise is the same: Trinnov performance, delivered with confidence.