Support User Manuals

Telos Zephyr Xstream Two-Way Radio User Manual

Open as PDF

of 381

USER’S MANUAL

Section 3: GUIDED TOUR of the HARDWARE 36

AES/EBU Inputs & Outputs

TheseareinputsandoutputsforAES/EBUformatdigitalaudiosignals.Moreinformationabout

thevariousmenusrelatedtotheiroperationisinSection5(GuidedTouroftheMenus)and

Section11(DetailedMenuReference).

AESIn(SendtoNetwork)

Theinputisinternallysample‐rateconverted,somayacceptsourcesatanyoftheusualrates

(32,44.1,or48kHz).

Adigi

talgainadjustmentcanbeusedtoalterthesignallevelsintothecodecsection.Levelscan

beincreasedordecreasedbyupto12dBtoallowforequipmentvariation.ThisistheGainTrim

selectionoftheAU

DIOmenu.

AESOut(ReceivefromNetwork)

Theoutputmaybesynchronizedandsample‐rateconvertedtoeithertheinputAESsignal’s

frequency,orthefrequencyofanindependentsyncsignalpresentedattheSyncInconnector.

ThisselectionismadeintheAUDIOmenu.SeeSection11(DetailedMenuReference)fordetails

onthismen

uoption.

t

DEEP TECH NOTE!

The Sample Rate conversion and AES Sync capabilities allow you to prevent problems with

“clock slip” due to different clock rates within a digital facility. Typically a “house clock”

reference would be fed to the SYNC IN jack of the Zephyr Xstream, as well as to other

equipment, to prevent drop outs due to buffer “overflow” or “underflow” conditions.

It is important to understand that while the Zephyr Xstream provides frequency

synchronization, it does not provide byte alignment. Your digital mixing equipment should

provide this capability, if required.

AESSync‐In

ThisjackallowstheusertoprovideanAES/EBUhousefrequencyreferencethattheZephyr

XstreamcanusetomatchitsAES/EBUsignalto.Thesynchronizationisacceptedfroma

standardAES/EBUformatsignal.Onlythesyncinformationisstripped;anyaudiowhichmaybe

presentisignored.

previous next