 Hi, I'm John Michaelides, System Consultant from RealEUK, and I'd like to welcome you to this series of videos, where we'll be taking a look at the Belero Wireless Intercom solution. Now on later videos, we'll be looking closely at the hardware and also configuring a system from scratch, but to begin with, we'll focus on the three modes of operation. These are Standalone Link, Standalone with SIMT-2110, and Integrated with Artist. But before that, let's take a general overview of what the Belero system is. Belero can be described as a point-to-point wireless intercom system. What that means in layman's terms is RealEUK have taken the concept of a talk-back panel with a built-in speaker microphone and a number of keys to talk and listen to various destinations, and they've shrunk it, and they've made it wireless. It works in the 1.9GHz frequency range, so it's license-free, and it's based on DECT technology. DECT stands for Digitally Enhanced Cordless Telecommunications, and it's the sort of thing that you'd find in a cordless phone in your home. Now a network is made up of a number of antennas, so there's no centralized base station, and each antenna can support a connection with 10 beltpacks, which is the highest possible spectrum efficiency. You can then fit 10 antennas into one RF space, giving you a density of 100 beltpacks. Now of course, RealEUK have taken this DECT standard, and they've made a number of important improvements. One of the main concerns with any RF system is how robust it is in handling interference. Now multi-path interference is what happens when a waveform travels from a source to a destination via two or more paths, e.g. directly or bounced off a reflective surface. These waveforms then interfere with each other, causing audible dropouts and poor RF performance. Now Bolero has two technology layers to tackle this. Firstly, diversity. Within the antennas and the beltpacks, there are two aerials. They are spatially separated and positioned in different planes. Secondly, Bolero uses an advanced DECT receiver, or ADR, which can differentiate between these multi-path signals. Now on top of this great RF performance, what makes Bolero fantastic for the user is RealEUK's high clarity, low latency codec. The BV32 codec offers an audio bandwidth of 7kHz and a system's delay time of 35-40ms. This codec outperforms other common codecs, such as G7L and G722, in terms of speech intelligibility. So now that we're familiar with some of the key concepts to Bolero, let's take a look at the three modes that it runs in. So let's begin by looking at the two standalone modes, starting with standalone link. As the name implies, the network is created by simply linking antennas together, using the link ports on the base of the unit to create a daisy chain or redundant ring. You can have up to 300 meters between antennas on CAT5. So with its plug-and-place simplicity, standalone link mode is ideal for short-term installations. Standalone with 2110 mode works in a very similar fashion, but instead of linking antennas directly to each other, they are all connected to a switch. This means you can use existing network infrastructure to build your Bolero network or distribute it over a wider area using fiber between switches. In both standalone modes, you use an integrated web browser for configuration, and the system will support 12 party lines, 100 beltpacks, and 100 antennas. You can also add an NSA 002A throw-down box for added four-wire and GPIO connectivity. Now the final mode of operation integrates the Bolero network into the artist ecosystem. In this mode, the antennas are connected to a switch, as are artist AES67 client cards. You create your Bolero network using the web browsers before, and the beltpacks are configured in the director software. In this mode, you have the full power of artists at your disposal, and it really is like carrying around a portable talk-back panel with all the extensive wire connections that artists provide. Up to 100 antennas and 250 beltpacks can be added to a network in this mode. So that's it for this introductory video. Hopefully you'll join me next time when I'll be taking a much closer look at the hardware and some of its unique features.