Avid Technology AirSpeed series, Инструкция по установке и эксплуатации

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Cabling Up the AirSpeed Multi Stream
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Connecting Time of Day (TOD) LTC Cables
The LTC IN/THRU connections are clearly marked on the rear of the AirSpeed Multi
Stream. The AirSpeed Multi Stream automatically synchronizes the system clock to LTC IN
if the signal is present. If the signal is not present, interrupted, or invalid, the system clock
will be used. LTC can be used for a record indirectly by selecting TOD (Time of Day). This
uses the system clock as a reference for time code.
The following procedure describes which connector to use. To find the exact location, see
“Video/LTC Connections (MPEG-2 HD Model)” on page 42 .
To connect longitudinal timecode (LTC) in/loop thru cables:
t
Connect your time of day (TOD) LTC timecode source to one of the connectors
(labelled LTC IN/THRU) as shown in the following diagram.
If the AirSpeed Multi Stream is the last device in your reference loop, terminate the
remaining LTC Loopthrough connector with a 75 ohm-rated terminator. If the AirSpeed
Multi Stream is in the middle of your LTC loop, connect the remaining LTC IN/THRU
connector to the next device’s LTC input.
LTC In/Loop Thru
Connectors
1
EXPANSION
PORT 1
EXPANSION
PORT 2
REF
IN/THRU
LTC
IN/THRU
IN 1
2