3 cobranet™ port, 1 cobranet™ oid’s, 2 dsp extensions – Media Technology Systems ION8.8 User Manual
Page 8: 3 interpreting the oid’s
Page 8 of 26
Jul‐09
3 CobraNet™ Port
The
standard
CobraNet™
tools,
including
CobraNet™
Discovery
(CNDISCO)
and
CobraCAD
are
available
for
use
with
the
MTS
CobraNet™
enabled
amplifiers.
These
tools
are
available
as
a
free
download
from
the
Cirrus
Logic
Website.
MTS
uses
a
custom
implementation
of
the
CobraNet™
firmware
and
the
latest
MTS_x_xx_xx.bin
file
(MTS_2_11_9.bin
as
of
July
2009)
is
available
as
a
download
from
the
MTS
website.
Do
NOT
use
the
Cirrus
Logic
binary
file,
otherwise
the
DSP
and
Amplifier
control
and
monitoring
extensions
will
be
missing
and
more
importantly,
audio
transport
will
stop.
The
CobraNet™
port
also
provides
control
and
monitoring
of
all
parameters
using
SNMP.
There
are
two
sets
of
controls,
CobraNet™
protocol
parameters
&
DSP
parameters.
Notes:
All
CobraNet™
settings
need
up
to
1
minute
to
establish
persistence,
as
they
are
stored
in
the
CobraNet™
flash.
If
the
ION
power
is
cycled
before
the
settings
are
stored
to flash, then the settings will be lost.
3.1 CobraNet™ OID’s
These
are
detailed
in
the
Cirrus
Logic
programmers
manual
(current
version
PM25)
and
covered in the standard Cirrus CIRRUSLOGIC‐CNDSP‐MIB file.
3.2 DSP extensions
The
DSP
control
and
monitoring
parameters
are
available
via
SNMP
OID’s.
As
these
OID’s
are
32
bit
registers
with
non‐intuitive
numbers
(eg,
+12dB
of
gain
on
a
mixer
is
represented
by
the
32
bit
value
534330399),
it
is
recommended
that
the
MTS
version
of
Stardraw
Control
(SDC)
is
used
for
control
and
monitoring
application.
Both
MTS
SDC
application
and
programmers
manual
are
available
as
a
download
from
the
MTS
website.
For
those
intrepid
explorers
who
wish
to
create
a
custom
driver
or
script
for
the
ION4.4
or ION8.8, the information on how to access and use the OID’s are given in below
3.3 Interpreting the OID’s.
All
SNMP
variables
are
referenced
by
the
object
identifier
(OID).
An
OID
is
a
dot‐
separated
string
of
integers
representing
the
path
from
the
root
of
the
SNMP
management
information
base
(MIB)
to
the
variable.
Firmware
supporting
DSP
Conductor
features
a
dspExtensions
SNMP
extension
agent
rooted
at…
iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).peakAudio(2680).cobraNet(1).dspExtensions(
4).control(2).