8.2 TCP/IQ Network Basics

TCP/IQ Tis a network based protocol that has the ability to control and monitor IQ components over a common TCP/IP network. For IQ com- ponents that have CobraNet capability, TCP/IQ has the ability to control and monitor these IQ components over the same Ethernet network used for CobraNet audio, resulting in a single Category-5 connection for control, monitoring, and digital audio. Figure 8.1 shows a typical TCP/IQ network.

TCP/IQ offers a number of advantages over other non-network commu- nications platforms.

•The use of “off-the-shelf” networking hardware. This tech- nology makes use of network connectivity and hardware commonly used in the computer industry, making it both low-cost and readily available.

•Better Performance. The capacity for real-time display of meters is greatly enhanced through the use of the wide-bandwidth network.

•Single connection for both CobraNet audio and IQ commu- nications. Gone are the days of multiple connections to a component for audio and control. A single CAT 5 connection handles it all.

Some of the features of TCP/IQ include:

•Ability to quickly discover all IQ components connected to the net- work.

•Synchronization of multiple control points on a network.

•Control and monitor of IQ components on different Local Area Net- works (LANs) through the use of an IP router.

•Component firmware upgrades via the network.

Ethernet Networks are established through the use of either a hub or a switch. These devices are centralized in the network and transfer the Ethernet data from point to point. Ethernet data is transferred in data packets that have addresses coded into their structure. Hubs and switches decipher these addresses and route the data packets to the appropriate component. Hubs do this by taking packets from any port and sending them out all other ports. Switches, on the other hand, are more intelligent and examine each packet’s address, sending that packet only to the addressed component. This results in a much more efficient data flow. TCP/IQ depends on the use of 100Mb switches and their use is highly encouraged. 100Mb or 100Base-T switches are required in CobraNet networks.

Computer

Laptop

DBC Network Bridge

DBC Network Bridge

CTs 600

CTs 1200

CTs 2000

CTs 3000

100Mb Switch

Figure 8.1 A TCP/IQ Network

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Operation Manual

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Crown 137769-3 operation manual TCP/IQ Network Basics, Component firmware upgrades via the network
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