AUDAC M2 - Page 70

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Diagram explanation
Everydeviceisindicatedwithadifferentcolour,andnexttoeverydeviceatableisshownwith
8incomingfiberaudiochannelsand8outgoingfiberaudiochannels.Betweentwodevices,a
connectionlineisshownrepresentingthefiberconductor,andnexttothisconnectionlineatable
isalwaysshownwhichindicatestheaudiochannelsthefiberconductoriscarryingatthispoint.
Theaudiochannelsbetweentheoutputofthepreviousdeviceandtheinputofthenextdevice
arealwaysunchanged.Thisisclearlydisplayedbymeansofthetextcolourinsidethetables.
WhenAPMpagingconsolesareconnectedandpagingoverfiberisenabled,thenchannel
“Fb1”isdedicatedforpaginguseandcan’tbeusedtoexchangeotheraudiochannels.For
thisreason,channel“Fb1”isalwaysmarkedwith“Paging”.
Anoverviewoftheaudiosignalstransmittedoverthefiberinterface:
- Fiber channel 1 (Fb 1): Thischannelisdedicatedforpagingpurposes
- Fiber channel 2 (Fb 2): TheRedM2(M005)transmitsanaudiosignaloverfiber
    channel“Fb2”.Thissignalreachesalldevicesandcan
    beusedbyalldevices.
- Fiber channel 3 (Fb 3): Sameaschannel“Fb2”,theRedM2(M005)transmits 
    anaudiosignaloverfiberchannel“Fb3”.Thissignal
    reachesalldevicesandcanbeusedbyalldevices.
- Fiber channel 4 (Fb 4): TheYellowM2(M001)transmitsanaudiosignalover 
    fiberchannel“Fb4”.Thissignalreachesalldevicesand
    canbeusedbyalldevices.
- Fiber channel 5 (Fb 5): TheBlueM2(M003)transmitsanaudiosignaloverfiber
    channel“Fb5”.Thissignalreachesalldevicesandcan
    beusedbyalldevices.
- Fiber channel 6 (Fb 6): Channel6isusedbytwoM2’s.TheOrangeM2(M004)
    transmitsanaudiosignaloverfiberchannel6“Fb6”,and
    thissignalreachestheRedM2(M005),theYellowM2
    (M001)andtheGreenM2(M002).TheGreenM2(M002)
    replacesthesignalonfiberchannel“Fb6”byanother
    audiosignal,andthisaudiosignalreachestheBlueM2
    (M003)andtheOrangeM2(M004).
-Fiber channel 7 (Fb 7): Fiberchannel7(Fb7)isusedbyallM2’s.EveryM2
    receivesandtransmitsanaudiosignaloverthischannel.
    Thisway,everyM2canuseasourceofthepreviousM2
    andreplaceitbyanothersignalwhichcanbereceivedby
    thenextM2intheringnetwork.
- Fiber channel 8 (Fb 8): Sameaschannels“Fb2”and“Fb3”,theRedM2 
    (M005)transmitsanaudiosignaloverfiberchannel
    “Fb8”.Thissignalreachesalldevicesandcanbeused 
    byalldevices.