Linear Acoustic LA-5269 Transcoder User Guide
Connections and Quick Setup
10
2.3
Rear Panel
The rear panel of the LA-5269 contains its electrical I/O.
2.3.1
Connection Ports
All of the connections for LA-5269 are on the rear panel and are described in detail below.
See Chapter 5:
Specifications
for specific pinouts.
Figure 2-1
Rear Panel
•
Metadata I/O:
RS-485 connection accepts the metadata output of any Dolby equip-
ment (DP572, DP570, etc...) or any Dolby-compatible metadata source. Used to con-
trol upmixing and other functions.
•
SDI Input/SDI Output:
Option allows for de-embedding and re-embedding any of
the 16 available channels in an applied HD or SD-SDI signal. VANC metadata extrac-
tion per SMPTE 2020 methods A and B is also supported.
•
GPI/O:
Output of unit status, GPI currently not used.
•
ETHERNET:
Used for firmware upgrades and SNMP reporting (see chapter 3)
•
Main Audio Input
: Connect the 48kHz PCM signals to these inputs. The input chan-
nels are arranged as follows: 1/2 = Left front/Right front, 3/4 = Center/LFE, 5/6 =
Left surround/Right surround. 7/8 is for the +2 program.
•
Enc. A Bypass:
Bypass input for Dolby Digital (AC-3) encoder A. Accepts output of
external encoder for fail-safe operation. Connector is also the input for the transcoder.
Apply Dolby E encoded audio here for decode then re-encode to Dolby Digital (AC-
3) or Dolby Digital Plus (E-AC-3), or apply Dolby Digital (AC-3) for transcode to Dol-
by Digital Plus (E-AC-3).
•
AES REf Input:
Apply 48kHz DARS (Digital Audio Reference Signal) here and
choose AES Ref as clock source in Setup->I/O menu. Note that this is useful with
some MPEG video encoders which provide an AES reference output.
NOTE:
Appropriate reference must be applied and selected for proper operation.
Summary of Contents for LA-5269
Page 1: ...Dolby Digital Plus Transcoder Model LA 5269 User Guide...
Page 2: ......
Page 6: ...Linear Acoustic LA 5269 Transcoder User Guide vi...
Page 12: ...Linear Acoustic LA 5269 Transcoder User Guide Introduction 8...
Page 16: ...Linear Acoustic LA 5269 Transcoder User Guide Connections and Quick Setup 12...
Page 26: ...Linear Acoustic LA 5269 Transcoder User Guide Applications 22...
Page 35: ...Linear Acoustic LA 5269 Transcoder User Guide Detailed Operation 31...