System User Guide / Owners Manual

9
TheAES3outputhastwofunctions,dependingonthesettingofthedipswitch
marked“aes”ontherear.Itdetermineswhethertheaudiocontentfoundatthe
AES3inputispassedthroughtotheoutput(“thru”)ornot(“mute”).In“mute”mode
theAES3datawillbeblackandrunattherateselectedforgroup2.In“thru”mode,
theAES3outputwillobviouslyrunatthesamerateastheAES3input.Onlossof
inputsignal,theoutputwillremainatthesamesamplingrate.
TheexactbehaviouroftheAES3outputinmastermodedependsontheusecase:
1.NosignalconnectedtotheAES3input.TheAES3outputisablacksignal(no
audio)withthesamesamplingrateastheGroup2BNCoutputs.Thechannelstatus
bitsindicate“Grade1reference”iftheCC1hasgonethroughtheoptionalfrequen-
cycalibration,otherwise“Grade2reference”.TheAESlockindicatorontherearis
off.
2.AsignalisappliedtotheAES3inputthatisnotsynchronoustotheCC1.The
AES3outputisablacksignalwiththesamesamplingrateastheGroup2BNCout-
puts.TheAESlockindicatorontherearblinks.
3.AsignalisappliedtotheAES3inputthatissynchronoustotheCC1,butthe“aes”
dipswitchissetto“mute”.TheAES3outputwillstillbeblackandsynchronous.The
presenceoftheaessignalhasnoeffect.In“master”modewiththe“aes”dipswitch
setto“mute”,anysignalattheAES3inputisbasicallyignored,exceptthatthe“aes
lock”lightontherearwillbeontoindicatethepresenceofasynchronousinput.
4.AsignalisappliedtotheAES3inputthatissynchronoustotheCC1,andthe
“aes”dipswitchissetto“thru”.TheAES3outputfullycopiesaudioandsubcode
data(butnotthejitter!)fromtheAES3input.InthismodetheAES3outputwill
neverindicate“grade1”asAES11requiresablacksignal.The“aeslock”lightison.
5.Iftheinputsignalislostfromcase4,thesamplingfrequencysettingisretained,
assuddenlossofsignalismostlikelyaccidental.Thisisdifferentfromcase1
whereanAES3inputsignalwasneverpresent.IftheremovaloftheAES3inputwas
onpurpose,changingthegroup2multipleonthefrontwillreturntocase1,and
theAES3outputwillonceagainbesynchronoustotheselectedmultipleofgroup2.
Slave mode
Slavemodeisthethirdsettingontheleftmostselector.Inslavemode,theCC1will
lookatthewordsyncinputaswellastheAES3inputforavalidsignal.Slavemode
permitsthefollowingusecases:
1.Wordsynconly.Uponselectionofslavemode,theCC1selectsthewordsync
input.Themiddleandrightselectoronceagainsetgroups1and2toamultipleof
thebaserate.TheAES3outputwillbeblack,synchronisedtogroup2andthechan-