RoadRunner
U S E R S G U I D E
55
It is these “Virtual Actions” that make the
RoadRunner
so powerful.
Some examples of the use of Virtual Actions include auto-configuration
and automatic STL backup.
To access the LL programming menu, use the keypad sequence:
<Logic Language>
Ancillary Data
Bi-directional RS232 ancillary data can be sent between the
RoadRunner
and another codec using any MPEG Layer 2 algorithm (MPEG Layer 3
ancillary data will be added in a future release). Data rates up to 38,400
are supported, no handshaking is provided.
To set the baud rate, use the keypad sequence:
<Ancillary Data><Port Baud>
or you can use the
CDR
command from a terminal.
Since the same rear panel connector is used for both remote control and
ancillary data, and two modes of ancillary data are supported, you
must first provision the port for proper operation. The three port
modes are:
•
MUX Mode:
This mode allows both near and far-end remote
control as well as far-end relay contact closures.
•
NOMUX Mode:
The
RoadRunner
uses the ‘NOMUX’ mode for
RS232 data transfer, meaning that the ancillary data is added
directly to the audio payload without being multiplexed with
other forms of overhead data. Data rates from 300 to 38,400 baud
are supported.
•
Anc Data Off:
This mode (factory default) turns all ancillary
data features off, and allows only local remote control of the
RoadRunner
. This mode must be selected before upgrading
software in your
RoadRunner
.
From the keypad, use the sequence:
<Ancillary Data><Mux Mode>
to select the mode, or you can use the
CAD
command from a terminal.