Yamaha QL1 Owner's Manual - Page 30

Connection Connection About network connections About Dante This product features Dante technology as a protocol to transmit audio signals. Dante is a network protocol developed by Audinate. It is designed to deliver multi-channel audio signals at various sampling and bit rates, as well as device control signals over a Giga-bit Ethernet (GbE) network. Dante also offers the following benefits: • It transmits up to 512 in/512 out, for a total 1024 channels (in theory) of audio over a GbE network. (The QL series features QL5: 64 in/64 out, QL1: 32 in/32 out with a 24/32-bit resolution.) • Dante-enabled devices will automatically configure their network interfaces and find each other on the network. You can label Dante devices and their audio channels with descriptive names that make sense to you. • Dante uses high accuracy network synchronization standards to achieve sample-accurate playback with extremely low latency and jitter. Five types of latency are offered by the QL series: 0.25 msec, 0.5 msec, 1.0 msec, 2.0 msec, and 5.0 msec. • A primary circuit and a secondary circuit provide redundancy in the event of a problem. • Connecting a Dante-enabled device to a computer using an Ethernet connection enables you to directly input or output audio signals without using any audio interface devices. • Audio can be transferred over distances up to 100 meters* between devices using CAT5e network cables. * Maximum practical distance may vary according to the cable used. Visit the Audinate website for more details on Dante. http://www.audinate.com/ More information on Dante is also posted on the Yamaha Pro Audio website: http://www.yamahaproaudio.com/ NOTE Please do not use the EEE function (*) of network switches in a Dante network. Although power management should be negotiated automatically in switches that support EEE, some switches do not perform the negotiation properly. This may cause EEE to be enabled in Dante networks when it is not appropriate, resulting in poor synchronization performance and occasional dropouts. Therefore we strongly recommend that: • If you use managed switches, ensure that they allow EEE to be disabled. Make sure that EEE is disabled on all ports used for real-time Dante traffic. • If you use unmanaged switches, make sure to not use network switches that support the EEE function, since EEE operation cannot be disabled in these switches. * EEE (Energy Efficient Ethernet) is a technology that reduces switch power consumption during periods of low network traffic. It is also known as Green Ethernet and IEEE802.3az. About Dante Controller Dante Controller is a software application that allows configuration and audio routing of Dante networks. Use this application if you wish to set up complicated signal routings on a Dante network. More information is posted on the following website. http://www.yamahaproaudio.com/ Connecting to I/O devices This section explains how to connect the QL series to I/O devices (such as Rio3224-D) in a daisy chain network and in a star network (redundant network). Before connecting I/O devices, first perform "Setting up the Dante network" (see page 34) and then turn off the power to the QL series console. Daisy chain network A daisy chain is a wiring scheme in which multiple devices are connected together in sequence. With this method, networking is simple and requires no network switches. This connection method is suitable for a simple system with a small number of devices. However, if a large number of devices are connected in this way, the latency value must be increased. Also, if a connection is broken in a daisy chain network, the signal flow is interrupted at that point and no signal will be transferred beyond that point. 30 Owner's Manual