3Com NCG-PLM - Manual

PLM Series Network Configuration Guide 5 PLM SeRIeS aND DaNTe NeT wORkINg FeaTUReS 3 3.1 Networking Overview Designed for use on an Ethernet network, the PLM Series Powered Loudspeaker Management system allows configuration, control, and monitoring of mul- tiple PLM Series devices from a PC running ...

6 PLM Series Network Configuration Guide 4.1 SPF Overview Critical network configurations (such as those trans- porting audio signals) should avoid “Single Point of Failure” (SPF) scenarios to the greatest extent possible. SPF failures can occur when a network has been designed in such a way that fa...

PLM Series Network Configuration Guide 7 avOIDINg SINgLe POINT OF FaILURe (SPF) ISSUeS 4 4.1.1 Signal type redundancy Use of this topology allows a PLM to receive audio and control signals from a source device using differ- ent output types, i.e. a device which can output both analog and AES signals...

8 PLM Series Network Configuration Guide 5.2 PLM Series Topology Overview Thanks to the auto-sense and auto-uplink features of the PLM Series’ Ethernet ports, connecting multiple units is a simple task. A free-topology network can be implemented easily, including external switches or hubs as require...

PLM Series Network Configuration Guide 9 NeT wORk CONNeCTIONS aND TOPOLOgIeS 5 5.2.3 Daisy-chained switches In such a topology, each group of PLM Series units (typically those inside the same rack) have a switch inside the rack to which each has a direct connection. These “local” switches are connec...

10 PLM Series Network Configuration Guide may be to place a group of local switches in each “zone”, which are first interconnected to form a “local area network” (e.g. Stage Left). These area networks are then interconnected with a main backbone. A different topology for the main backbone than that ...

PLM Series Network Configuration Guide 11 5.4 PLM / Dante Network Size Limitations The information below is provided to give an overview of the terminology and concepts that are used when describing a PLM network and its functions. Further explanations of terminology used can be found in section 7, ...

12 PLM Series Network Configuration Guide for use in larger venues; however local legal restrictions may apply in some countries. Please contact your Lab.gruppen distributor for advice if necessary. 5.6 Improving wireless accessibility Primary and Secondary PC In applications where maintaining contr...

PLM Series Network Configuration Guide 13 Code Point (DSCP) protocol, and it must implement strict priority control over at least the top two priority levels. (3Com is an example of a provider that typi- cally prioritizes only the top level.) See References and Definitions in section 7 for more on D...

14 PLM Series Network Configuration Guide 6 NeT wORk HaRDwaRe ReCOMMeNDaTIONS only guarantees the performance of the EtherCon for 1000 mating cycles. In order to provide a more reliable long-term solu- tion, Lab.gruppen recommends the circular metal push-pull connector from LEMO ® . These connectors...

PLM Series Network Configuration Guide 15 REFERENCEs AND DEFINITIONs 7 The following definitions will help the user better understand some specific terms used in this guide, and in other PLM Series technical documentation. Lab.gruppen has made every effort to make sure that the information here is c...

16 PLM Series Network Configuration Guide 8 ADDITIONAl INFORmATION Contact: Lab.gruppen ABFaktorvägen 1SE-434 37 KungsbackaSWEDENPhone: +46 300 56 28 00Fax: +46 300 56 28 99 [email protected] [email protected] Intercooler and Class TD are national and/or international reg...