Specifications

5. Locations & connections
Locations
AlllocationsinthesystemfeaturetwoGigabitmanaged
switches.CobraNet™andEthernetdevicesareconnected
tospecicconnectorsoftheswitches.
Installations
Forinstallations,thenetworkconnectionsoftheswitches
canbeused.Nofrontpanelconnectorsarerequired.
Touring
In case of a 19” rack, the two top units carry the two
switches. The back side allows access to the switch
ports, the front side includes touring connectivity using
EtherCon
®
connectorsforCAT5EcablingandFiberfox
®
EBC52connectorsforbercabling.
In case of a mixing console, the switches, EtherCon
®
and Fiberfox
®
 connectors can be built into the mixer’s
ightcase,e.g.inthedogboxattherearoftheconsole.
Star location
A high capacity switch, such as theDlink DGS3324SR,
featuring24Gigabitportswithfour GBIC SFP slotsfor
berconnectivity,isusedforthestarlocation.Ports1to
8 are allocated toVLAN1: default (the controlVLAN).
Ports9 to16are allocatedtoVLAN2:CobraNet™. For
redundancyoneCAT5Epatchcableconnectstoport17of
bothswitches.Ports21to24doublewiththeGBICslots
forconnectiontotheendlocations.
Fortouringapplications,eachlocationtobeconnectedto
thestarrequirestwoconnectorsonthefrontpanelofthe
location’scase:twoEtherCon
®
connectorsforredundant
CAT5EcablingortwoFiberfox
®
EBC52connectorsfor
redundantbercabling.
End locations
A low capacity switch, suchas the DlinkDES-3010GA,
featuring eight 100Mb ports, one Gigabit port and one
GBICSFPslotfor ber connectivity, isusedforallend
locations.Thisswitchdoesnothaveafansoitissilent;it
canbeusedincriticalacousticenvironments.
Ports1and2areallocatedtoVLAN1:default(thecontrol
VLAN).Ports3to8areallocatedtoVLAN2:CobraNet.
For locationswith Fiberconnectivity, one CAT5E patch
cableconnects theTX Gigabitports of bothswitches to
support the RSTP redundancy, while the GBIC slot is
usedfor connectionwith thestar location.For locations
with CAT5E connectivity the GBIC slot is used for the
RSTP redundancylink, and theTX Gigabit port for the
connectionwiththestarlocation.
Fortouringapplications,twoconnectorsareavailableon
thefrontpanels:twoEtherCon
®
connectorsforredundant
CAT5EcablingortwoFiberfox
®
EBC52connectorsfor
redundant ber cabling.An end location can connect to
furtherCobraNet™devices,otherthanthosebuiltinthe
stagerack,usingtwoEtherCon
®
connectorsperdevice.
Redundancy
Allconnectionscomeinpairsforredundancy.Connections
shouldberolledoutphysicallyseparatedfromeachother
as much as possible to offer maximum protection from
cablingaccidentse.g.involvingrodentsorheavymilitary
equipment.
Starlocationrackfrontview
Endlocationrackfrontview
Starlocationrackrearview Endlocationrackrearview Locationfunctionaldiagram
Rack contents
Rack contents
Rack contents
Rack contents