Studer OnAir 3000 Operating Instructions Manual page 310

6.5.28.2 TalkBack
OnAir 1500/2500:
Basic Label
Incoming TB Indication
Document generated: 10.10.14
This page defines the physical inputs used as talkback return sources: up to
four summed microphones per studio, one external talkback source TB from
Extern, and 16 or 48 additional external talkback sources TB from Ext 1...,
depending on the DSP core configuration.
Talkback from studios 1 and 3 not supported. Up to 4 external talkback
sources supported.
The basic label may be entered here as described in
Source Defines the physical audio input that is used to establish the mono channel
for the logical input.
Indication: Frame (Int = internal I/O cards in SCore frame; Ext # = additional,
external D21m frames), Slot #, Card type, and Input # (e.g. Int, Slot 11,
ADAT, Ch. 9), or '-' (if no physical input is assigned to the logical input).
When selecting No, the key illumination on incoming talkback may be sup-
pressed for any external TB input. This makes sense if an external TB input
is used for listening to an external source instead of for talkback.
SW V6.0
OnAir Digital Mixing Consoles
chapter 6.5.1.
Configuration 6-69