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Linear Acoustic AERO.ASI User Guide
This rest of this chapter includes:
•
a description of back panel connectors;
•
system block diagrams;
•
an introduction to AERO.ASI's displays and menus;
•
a summary of important setup parameters.
See Connector Pinouts on page 44 for AES and analog connector, metadata, and GPI pinout tables.
1.1
Back Panel
Figure 1-1 shows the AERO.ASI back panel. Its connector functions are described below from left to
right:
•
Analog I/O (DB9) – Stereo +4 dBu I/O (not currently used)
•
Metadata I/O (DB9) – RS-485 metadata (not used for DVB-ASI)
•
Reserved (RJ45) – Reserved for future use (not connected internally)
•
ETHERNET (RJ45) – Auto-senses 100/1000 BASE-T, connect to stable network
•
DVB-ASI I/O (dual BNC) – Supports processing of up to 4 AC-3 PIDs; includes internal
compensating delay for other PIDs and data to maintain zero timing
•
Main AES I/O (4x BNC) – 8 I/O channels
•
AES Ref (BNC) – Apply 48 kHz DARS (Digital Audio Ref Signal), or any AES signal, but not
video. Use only if ASI insertion is disabled.
•
ENC Out (BNC) – Encoder output, fed in parallel with AES 15/16
•
Vref (BNC) – Video reference input (not currently supported)
•
LTC In (BNC) – LTC timecode input (not currently supported)
•
GPI/O (DB25) – Eight parallel inputs, 5-V TTL levels, active low (see Table 5-5 on page 46)
•
PSU1/PSU2 – AC power inlets
All BNC inputs are 75-ohm internally terminated.
NOTE:
Figure 1-1 AERO.ASI back panel
12
Introduction to AERO.ASI
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