- Dolby Multichannel Audio Tool User's Manual

70 Dolby
®
DP570 Multichannel Audio Tool User’s Manual
Connector Specifications
B.4 Video Ref
TheVideo RefconnectionsareBNCunbalancedfemaleconnectorsthatreceiveNTSC
compositeprogramsorcolorblackvideo.SignallevelsarecompliantwithSMPTE154
specifications.Twoconnectorsareprovidedinparalleltoprovideloop‐throughcapability.
Thisinputdoesnotsupplyaclocksignaltotheunitbutratherallowsthemetadata
output
tomaintainsyncwithavideoreference.
B.5 Lt/Rt Inputs
TheseareBNCunbalancedfemaleconnectorscompliantwithAES‐3id‐1995/SMPTE 276M
specifications.TwoconnectorsareprovidedinparallelfortheLt/Rtinputtoprovide
loop‐throughcapability.
B.6 Metadata Input Ports
Theseportsare9‐pinfemaleD‐connectorswithfull‐duplexRS‐485protocolrunningat
115 kbps.ThepinoutisSMPTE207Mcompatible.
B.7 Metadata Output Port
Theseportsare9‐pinfemaleD‐connectorswithfull‐duplexRS‐485protocolrunningat
115 kbps.ThepinoutisSMPTE207Mcompatible.
Table B-2 Metadata Input Port Pinout
Pin Connection
1Shield
2TXAasynchronousdataout–
3RXBasynchronousdatain+
4Ground
5NC
6Ground
7TXBasynchronousdataout+
8RXAasynchronousdatain–
9Shield
Table B-3 Metadata Output Port Pinout
Pin Connection
1Shield
2RXAasynchronousdatain–
3TXBasynchronousdataout+
4Ground
5NC
6Ground