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Quantum and Evolution Series Installation and Operating Handbook
7-41
with Aux data as determined by the IDR Aux mode setting)
2x32k in V1,V2
The normal full 96kbps of IDR overhead is used, including two audio ESC
channels encoded as 32kbps ADPCM, as well as the standard 32kbps for
FAS, backward alarms and an 8kbps synchronous ESC channel .
Factory
default:
Off
Description:
Controls audio data format for the ESC overhead in IDR mode. The
overhead can be set to 32, 64 or 96kbps. 64kbps of this can be not
transmitted, allocated to voice or allocated to Aux data via the Aux
controls.
IDR Aux Data
Options:
Off
No Aux data is placed in the overhead.
32K
32kbps of Aux data replaces the data in IDR audio ESC channel V2
(requires the IDR audio mode setting to be
2x16k in V1
or
1x32k in V1
).
64K
64kbps of Aux data replaces the data in IDR audio ESC channels V1 and
V2 (requires the IDR audio mode to be set to
Off
).
Factory
default:
Off
Description:
Controls the Aux channel in IDR mode. Allocates Aux data in place of
one or both of the IDR voice channels if these are not used or can be
used to reduce the 96k overhead to 64k or 32k. Requires Aux SAF
feature.
Aux Interface
See the description under
Edit-Unit-Interface-Aux Interface Screen.
ESC Audio Levels
Units:
dB
Minimum value:
0
Maximum value:
38
Содержание Evolution
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Страница 258: ...Quantum and Evolution Series Installation and Operating Handbook 8 32 Eb NoExplanatory Diagram ...
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Страница 348: ...Quantum and Evolution Series Installation and Operating Handbook 13 20 Modem Error Probability versus Eb No 16QAM Turbo ...