Blackmagic
MultiView
16
RS-422
Protocol
General
The
RS-422
protocol
can
be
used
to
control
Blackmagic
MultiView
16
as
a
slave
device
from
third
party
routers
and
automation
systems.
The
“
Leitch
Server
”
mode
implements
the
router
(server)
side
of
the
Leitch
Serial
Pass
Through
Protocol
as
specified
in
section
4
of
Leitch
document
SPR-MAN
revision
D.
In
“
Leitch
Client
”
mode,
the
Blackmagic
MultiView
16
implements
the
controller
(client)
side
of
the
Leitch
terminal
protocol.
Set
the
desired
leitch
mode
in
the
‘
configure
’
settings
in
the
Blackmagic
MultiView
Setup
software.
This
document
describes
the
commands
and
parameters
in
the
protocol
that
are
relevant
and
supported
by
Blackmagic
MultiView
16.
Other
commands
and
parameters
specified
in
the
Leitch
protocol
are
accepted
but
ignored.
The
RS-422
serial
port
is
configured
as
9600
N81:
9600
is
the
line
speed,
or
baud
rate,
at
9600
bits/sec.
N
represents
no
parity
check,
or
‘
none
’
.
8
is
the
data
length.
1
is
for
stop
bits.
To
summarize
N81,
data
without
a
parity
check
begins
with
1
start
bit,
includes
8
true
data
bits,
and
1
stop
bit.
There
are
10
bits
in
total.
The
protocol
is
line
oriented,
with
a
maximum
length
of
250
characters
per
command.
Each
command
from
the
client
should
be
terminated
with
a
carriage
return
(
\
r).
Each
response
from
the
server
will
be
terminated
with
a
carriage
return
and
line
feed
(
\
r
\
n).
Sources,
destinations
and
levels
are
always
specified
in
base-16,
numbered
from
zero.
Levels
are
always
between
0
and
15
(
“
F
”
)
.
Blackmagic
MultiView
16
only
has
one
valid
level
-
level
zero.
On
connecting
to
the
serial
port,
the
client
should
send
a
carriage
return.
Blackmagic
MultiView
16
will
respond
with
a
>
character
prompt,
which
is
not
followed
by
a
carriage
return
or
line
feed.
Receiving
the
prompt
indicates
that
a
connection
has
been
established.
The
same
prompt
will
be
issued
after
each
command
received
by
the
MultiView.
In
the
following
documentation,
commands
in
orange
and
values
in
blue
must
be
typed
literally,
including
any
spaces.
In
the
following
example
of
an
immediate
command
using
destination
port
7
and
source
port
3,
@ X:0/
destination
,
source
would
be
entered
as:
@ X:0/
6
,
2
The
RS-422
serial
port
lets
you
control
Blackmagic
MultiView
16
from
third
party
routers
and
automation
systems.
The
connector
is
an
RJ11
connector,
the
same
used
in
many
landline
telephone
connections.
By
modifying
an
RS-422
to
USB
adapter
cable
terminated
with
an
RJ11 connector,
you
can
control
Blackmagic
MultiView
16
using
external
controllers
via
USB.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SOLO
SET
SRC
VIEW
MENU
Blackmagic MultiView
16
ETHERNET
SD/HD/3G/6G-SDI IN
REF IN
LOOP OUT
IN
HDMI OUT
6G-SDI OUT
HD-SDI OUT
RS-422
CNTRL
USB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SOLO
SET
SRC
VIEW
MENU
Blackmagic MultiView
16
ETHERNET
SD/HD/3G/6G-SDI IN
REF IN
LOOP OUT
IN
HDMI OUT
6G-SDI OUT
HD-SDI OUT
RS-422
CNTRL
USB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
300
300
Информация для разработчиков
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