Security Systems BU Communication Systems Praesideo Cobranet Interface
Security Systems BU Communication Systems Praesideo Cobranet Interface LBB 4404/00 Slide 1
Security Systems BU Communication Systems What is Cobranet? è Developed by Peak Audio, Cobra. Net™ is the industry's leading technology for distributing uncompressed real-time digital audio over a Fast Ethernet network. Advantages: è Use of “standard” multi-vendor network (ethernet) and protocol (cobranet) è Complies to structured cabling principles using Cat 5 and GOF è Long line transmission using GOF è Provides open audio interface to mix with other Cobranet products and systems Slide 2
Security Systems BU Communication Systems What is Cobranet? Cobranet technology è Isochronous èNo data transmission retransmissions (real-time audio) Slide 3
Security Systems BU Communication Systems Praesideo Cobranet Interface è è Links 4 Praesideo audio input channels and 4 Praesideo audio output channels to Cobranet Functionality is similar as a Praesideo Audio Expander NCO 1 NCO 2 44+analog 4 digital channels Audio Expander Cobranet Interface Audio Cobranet Expander interface 4 analog channels Slide 4
Security Systems BU Communication Systems Praesideo Cobranet Interface è 19”-Praesideo cabinet è 2 Ethernet connections (Cobranet) Redundant ethernet connection è 2 MOST system network connections (Praesideo) èVU meter reading on display è 8 control inputs è 5 control outputs è 1 headphone output Slide 5
Security Systems BU Communication Systems Praesideo Cobranet Interface Cobranet specifications è 48 k. Hz sample rate è 16, 20 è 5. 33 and 24 bits resolution latency mode Slide 6
Security Systems BU Communication Systems Praesideo Cobranet Interface è Cobranet is using a fixed peer to peer or multicast routing after configuration è Audio routing is configured via dedicated PC configuration tools and the Cobranet routing is fixed afterwards Praesideo routing to a Cobranet Interface is still dynamic Slide 7
Security Systems BU Communication Systems Praesideo Cobranet Interface èNo control functions are transferred via Cobranet Praesideo Open Interface is needed for control functions via Ethernet (TCP/IP), using a separate Ethernet switch Control is only to a Praesideo NCO, not by the NCO The NCO is an Open Interface slave and a PC Call station can be the master (for multiple slaves) Slide 8
Security Systems BU Communication Systems Cobranet network A good Ethernet network is essential for Cobranet èTodays Ethernet variations 10 Mbps Ethernet (not suitable for Cobranet) 100 Mbps Fast Ethernet 1000 Mbps Gigabit Ethernet èUse (managed) switches no hubs Hubs Switches èSwitch half-duplex 100 Mbps network-wide data exits all ports regardless of address full-duplex 100 Mbps in each direction intelligent forwarding gives more freedom in network design Slide 9
Security Systems BU Communication Systems Cobranet network Spanning Tree Protocol Slide 10
Security Systems BU Communication Systems Cobranet network Spanning Tree Protocol Slide 11
Security Systems BU Communication Systems Cobranet network node Spanning Tree Protocol switch node switch X STP disables a link to prevent the ring condition node Slide 12
Security Systems BU Communication Systems Cobranet network node Spanning Tree Protocol switch node switch X node switch node If a link is broken. . . switch STP disabled link node Slide 13
Security Systems BU Communication Systems Cobranet network node Spanning Tree Protocol switch node switch X node switch node Broken link. . . switch STP re-enables the link to route around the failure node Slide 14
Security Systems BU Communication Systems Cobranet network Trunking Slide 15
Security Systems BU Communication Systems Cobranet network Distances all depends on Ethernet limitations and good network design and used equipment like switches and cabling èCAT 5 cabling Unshielded twisted pair Fast Ethernet distance limitation is max 100 meter èMultimode glass fiber Multiple paths through the fiber Fast Ethernet (100 Base-FX) distance limitation is max 2000 meter 62. 5μm Core 125μm Cladding Slide 16
Security Systems BU Communication Systems Cobranet network Distances all depends on good Ethernet network design and used equipment like switches and cabling èSingle mode glass fiber Single path through the fiber No Ethernet standard for Single mode fiber 8/125μm is typical Distance limitation depending on on used equipment like switches Slide 17
Security Systems BU Communication Systems Praesideo / Cobranet System Architecture Ethernet NCO 63 nodes Cobranet interface NCO 63 nodes Ethernet Switch Ethernet 63 nodes Ethernet Cobranet interface Ethernet Switch Ethernet over glass fibre or CAT 5 Slide 18
Security Systems BU Communication Systems Praesideo / Cobranet System Architecture Max. 5 PC CST per ring Ethernet NCO 63 nodes Cobranet interface NCO 63 nodes Ethernet Switch Ethernet 63 nodes Ethernet Cobranet interface Ethernet Switch Ethernet over glass fibre or CAT 5 Slide 19
Security Systems BU Communication Systems Praesideo / Cobranet System Architecture Design rules èDon’t exceed ethernet available bandwidth Be conservative No more than 16 bundles over a 100 Mbps link 64 channels total over a half-duplex link 64 channels each direction over a full-duplex link èDon’t exceed distance limitations èMax 7 switch hops èNo loops without Spanning Tree or Meshing capable switches Observe hop limitations Slide 20
Security Systems BU Communication Systems Cobranet information èBosch èPeak èPro Extranet soon updated with Cobranet information Audio / Cirrus Logic Website Sound web, Cobranet forum Slide 21
Security Systems BU Communication Systems © Robert Bosch Gmb. H reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Slide 22
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