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Chapter 3: Installing Avid DNA Video Peripherals 15

The unused Video Ref port must be terminated

(using the 75-ohm terminator included with the

SYNC I/O) or connected to another terminated

video device (such as the AVoption|V10).

Loop Sync In/Out

Loop Sync is the clock signal used to synchro-

nize Pro Tools|HD-series audio interfaces. Con-

nect Loop Sync In on the SYNC I/O to Loop

Sync Out on the primary Pro Tools|HD audio in-

terface. Connect Loop Sync Out on the SYNC

I/O to Loop Sync In on the primary

Pro Tools|HD audio interface. If you have multi-

ple Pro Tools audio interfaces, connect Loop In

on the SYNC I/O to Loop Out on the last

Pro Tools interface.

Using Centralized Video Switching

and Routing

Many professional facilities have centralized

video switching and routing systems. These sys-

tems can be used to route Avid DNA video pe-

ripheral inputs and outputs to flexible input

sources and output destinations.

Connecting House Video

Reference or Black Burst

In most Avid DNA video peripheral setups, the

following black burst or house video reference

(house sync) connections are required:

•To the Video Ref connector on the

SYNC I/O

•To a video input on your VTR (a video ref-

erence input if available)

•To the Video Ref connector on the Avid

DNA video peripheral (this connection can

also originate from the unused Video Ref

port on the SYNC I/O)

Read the documentation for your black burst

generator for more information.

Connecting a VTR

A VTR can be used to provide video input to and

record video output from the Avid DNA video

peripheral. In most situations, there are three

connections you need to make:

1 Connect a black burst or house sync output to

a video input on your VTR (preferably a refer-

ence video input).

2 Connect the Avid DNA video peripheral Com-

posite IN, Component IN, S-Video IN, or SDI IN

connectors to the corresponding output or out-

puts on your VTR.

SYNC I/O video connections

SYNC I/O connection to a Pro Tools|HD audio interface

MTC OUT

HOST SERIAL

VIDEO REF

VIDEO

OUT

INTERNALLY

TERMINATED

House Video

Reference

AC 100-240V, 50-60HZ, .5A 30W

9-PIN OUT 2

9-PIN OUT 1

OUT

LOOP SYNC

to Loop Sync In

(audio interface)

from Loop Sync Out

(audio interface)

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