Specifications

Chapter 11: Dolby D/E Modules 147
Enable Bus Driver
De-selecting Enable Bus Driver disables the output drivers.
External Output BNC
The Dolby E-encoded bit stream is sent out over an unbalanced AES3 output in parallel to the audio bus.
Metadata Source
Preset
The program’s metadata and setup parameters for each encoder are defined manually and can be saved in a Preset. A Preset can
be loaded, edited and saved.
Bus
Metadata for the Dolby E encoder is extracted from the USER bits in Metadata Subset format of one of the incoming PCM signals.
External (RS485)
Metadata for the Dolby E encoder is received by the 9-pin D-Sub connector at the front side of the module in Dolby E format.
Error Detection
The serial audio data from the frame bus can be monitored to properly position an Error-Flag. A bad Error-Flag indicates a distur-
bance upstream (i.e., input signal, input module, other DSP module). Error Detection is activated globally but specific bus inputs
can be enabled for error detection (Ch 1/2, Ch 3/4, Ch 5/6, Ch 7/8, Ch 9/10). The status of the busses is displayed on LEDS on
the left.
Bus Status
The bus status, as well as the external Input (BNC) status, may be presented to external monitoring systems using SNMP. The
frame controller summarizes such status information and generates SNMP traps for the frame as an entity or may activate GPOs
(if GPIO module(s) are installed). The SNMP manager may later poll the module’s Status for more detailed status information per
input.
Metadata Reversion Mode
In case a metadata error occurs, select a method to continue reading metadata.
LAST USED
Encoding continues with the parameters last used.
Stop Encoding
The encoding process stops.
Grey Error detection disabled
Green No error detected
Red Error condition
See “SNMP Functions Setup” on page 62.