Revision C • 10/07
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3-10
3 Operation
VistaMax sources can also be routed directly
by loading a session file with the desired VistaMax
sources preassigned to the input channels. Vis-
taMax sources can also be directed to in-room re-
cording devices by using a rack mount VistaMax
source selector panel in similar fashion.
To route a console signal to a VistaMax location
requires only that the source name be “published”
(which is a setup function that simply lists the
sources that each destination can select from).
When a destination has a source published to it,
that source name shows up in the next source list
as the source selector is turned on the console or
on a VistaMax selector panel.
For a more complete description of the VistaMax
audio management system, see the VistaMax
manual (Harris # 75-52).
TELCO / CODEC OPERATION
Up to six channels in an RMX
digital can be
designated as Telco channels 1 - 6. The term Telco,
at least in the RMX
digital, generically refers to
any type or model of remote send/receive device,
which includes telephone hybrids, satellite trans-
ceivers and ISDN codecs.
When a channel is set as a Telco, several changes
occur including activating two buttons on the
channel strip: AUTO F/B (Automatic foldback)
and TALKBACK (which lights up). Bus assign-
ments on Telco channels not only assign the chan-
nel input to one or more buses, they also affect the
foldback signal returned to the Telco device as
detailed in the following sections.
TELCO FOLDBACK MIX
There are two mono foldback signals (alternately
termed IFB, for Interruptible Foldback, or mix-
minus signals) associated with each Telco chan-
nel. One output adds talkback audio over the mix-
minus feed, while the second is a “clean feed” with-
out talkback. Either or both of these outputs may
be used in the console, depending upon how the
console was configuration during installation.
The Telco foldback signal with talk allows the
board operator to talk to any caller or remote by
pressing that channel’s Talkback button while talk-
ing to the caller or remote through the board
operator’s microphone (pre-fader and pre-switch).
The Telco channel’s clean feed output is typically
used as a guest headphone feed or as a remote site
program feed.
The bus source for the two foldback outputs is
indicated by the “winking” program or offline bus
assignment button on each Telco channel. The bus
used is determined by which buses are assigned
and by the status of the AUTO F/B button, which
when lit uses the Telco channel’s state (channel
On or Off) to automatically select which bus is
used as the foldback source.
All program bus foldback feeds are derived post-
switch and post-fader. The Offline bus foldback
feed is pre-switch and is set as pre-fader or post-
fader in the session file.
Auto-Foldback On
When the AUTO
F/B button is lit, as
shown adjacent, that
Telco channel’s
foldback mix auto-
matically toggles be-
tween an assigned
program bus, while
the channel is On,
and the Offline bus,
while the channel is
Off, using this bus
priority:
While the Chan-
nel is On: PGM 1 is
the foldback mix
source. If it’s not as-
FOLDBACK
SOURCE with
AUTO F/B lit
& channel Off
FOLDBACK
SOURCE with
AUTO F/B lit
& channel On
Содержание RMXDIGITAL
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