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Network Overview
For most installations, the SCM820 can connect to a computer either directly
or though a network switch ("Link-Local" connections). Connect multiple
mixers to a switch in a star configuration to ensure reliable networking (each
unit connects directly to the switch).
In some cases, computer settings or programs may interfere with the
network. The majority of these connection issues can be solved by using a
DHCP-enabled router*. Most routers include a DHCP server, while switches
do not.
*Note: DHCP servers are not recommended for redundant network
configurations. See Redundant Network Recommendations for more
details.
Typical Network Setups
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Digital Audio Networking
Dante
digital audio is carried over standard Ethernet and operates
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using standard Internet Protocols. Dante provides low latency, tight clock
synchronization, and high Quality-of-Service (QoS) to provide reliable audio
transport to a variety of Dante devices. Dante audio can coexist safely on
the same network as IT and control data, or can be configured to use a
dedicated network.
Data Types on the Network
The SCM820 transports two types of data over the network: Shure Control
and Dante Audio and Controller. They are transported to/from the two
network ports depending on the mixer's network settings.
Shure Control: The Shure Control carries data for the GUI operation,
firmware updates and 3rd party control systems (AMX, Crestron). This
network is supported by all SCM820 models.
Dante Audio and Controller: The Dante network carries both the digital
audio and the control data for Dante Controller. This network is supported
by Dante-enabled SCM820s.
Switch Recommendations for Dante Networking
In addition to the basic networking requirements, Dante audio networks should
use a Gigabit network switch or router with the following features:
• Gigabit ports
• Quality of Service (QoS) with 4 queues
• Diffserv (DSCP) QoS, with strict priority
• Recommended: A managed switch to provide detailed information about the
operation of each network link (port speed, error counters, bandwidth used)
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Networking
Basic Networking Requirements
To network SCM820 mixers, ensure the setup meets the following
requirements:
• Use shielded Cat5e cables (or higher)
• Cable runs limited to 100 m (328 ft.)
• Devices are on the same subnet
Network Best Practices
• Use gigabit ethernet devices
• Use only one DHCP server per network
• Turn off other network interfaces not used to connect to the mixer
(including WiFi)
• All mixers must have the same level of firmware revision installed
Single Mixer
The SCM820 can connect directly to a computer. (This setup may take a
minute or longer to establish a connection between devices.)
Multiple Mixers
Connect multiple mixers together in a star configuration using a DHCP-
enabled router for the most reliable network setup.
Dante Network Interface
The Dante network card is a two-port interface
that can be configured to enable the following
applications:
• Link mixers to expand the audio mix, enabling the addition of up to 12
mixers (96 channels).
• Protect the audio signal with a redundant audio network.
• Isolate Dante audio from the Shure Control network.
• Record audio to a computer without additional hardware.
• Maintain digital audio path to other Dante devices.
• Route an 8-channel automixing insert to another Dante device using a
single shielded Cat5e cable.
• Daisy-chain up to four SCM820 mixers.
secondary
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