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Les langues disponibles
STUDER REVOx
REVOX IR REMOTE
CONTROL SYSTEMS
E 1/5
1.5
RS 232 Interface
the RS232
serial
port
of the B203.
The
operating
state
of the B203
as well
as
the status
of
the
connected
equipment
Cif designed
for
this)
can be re-
trieved
via
this
interface.
Interface
hardware
a Full-duplex,
3-wire
connection
(GND,
Tx,
Rx)
« 1200 Baud,
1 start
bit,
1 stop bit,
8 data
bits,
no
parity
bit.
= Software
handshaking
(Xon,
Xoff)
Software
versions
Two
software
versions
are
available:
e B203-C
Ccustomer
version),
contains
the
equipment
modules
for:
B215,
B226,
B225
with
microprocessor
board
1.769.327,
B285
(B291
without
RS232
module).
« B203-IND
Cindustrial
version),
contains
the
equipment
module
for:
B215,
A725,
A725-2,
PR99
MKII,
B225 with
microprocessor
board
1.769.327
and B226.
The units
of the
industrial
version
are
identified
on
the
rear
with
an additional
Label
CIND).
1.5.1
Dialog B203 <--> personat
computer
a
To achieve
the
fastest
possible
communication,
the
com-
mands
and
feedbacks
have
been
kept
as short
as possible
in
the form of ASCII
strings.
The
length
of a string
as well
as
its
Layout
is
specific
to
the corresponding
equipment
and depends
on the
device
identifier,
however,
it cannot
exceed
79
characters.
A
string
is always
terminated
with
a carriage
return
(ASCII
13).
The character
set
comprises
the digits
0 to 9 and the
Let-
ters
A to Z. To prevent
confusion
with @ and
1 the
charac—
ters
0,
I,
are
used
as
Little
as
possible.
In order
to
prevent
misinterpretation
(8 %$
: ; ..)
the
space
and
the
minus
sign
(-)
are
the
only
valid
special
characters.
is
returned
in the
form of a string.
feedback
is alphanumeric.
The
format
of
the
1.5.2
Command
format
a
The
command
string
starts
always
with
the
connection
number
(0...9)
followed
by the
command
chain
which
is
al-
ways
terminated
with
<CR>
(ASCII
13).
The carriage
return
is
no
longer
mentioned
in the
following
text
even
though
it
is part
of each
command
string.
In the
examples
it is
represented
by the character
"<".
A. Channel
number
(ist
string
segment)
RKKKKKKKKKKEEKEKRE
0
8203
internal
1
Terminal
1 (SERIAL
LINK)
2
Terminal
2 (SERIAL
LINK)
} boteiase
CSERIAL
LINK)
9
Parallel
remote
control
= The
terminal
No.
"0"
designates
a general
command
for
the B203..
This
address
provides,
e.g.,
access
for using
the response
of the TIMER
and EASY
functions.
a Terminal
numbers
"1...8"
address
the
subsequent
instruc-
tion
set
for
the equipment
connected
to the correspond-
ing terminal.
= Terminal
number
"9"
corresponds
to the 9-pin socket
of
the parallel
remote
control
for
the B710 or B77.
It can
be controlled
either
with
the commands
specific
to these
units
or with
individual
signals
(6+1
bits)
or as
byte
(6+1
bits).
This
means
that
expansions
of
auxiliary
functions
can
be
programmed
by
the
user
(e.g.
for
changing
over
speaker
groups,
illumination,
or
for
operating
a slide
control,
etc.).
« To ensure
that
the
correct
instruction
set related
to the specific
unit
is
used,
the user
or
the timer
must
always
call
the device
identifiers
first.
Commands
not
defined
in the equipment
table
are
preted
as
incorrect
by the B203.
When the device
identifier
is called,
the B203 responds
with
a feedback
that
contains
only
the
terminal
number
and the device
identifier.
(Device
identifier:
see
under
"Feedback
format".)
s An
invalid
entry
is acknowledged
by the B203 with ASCII
007 (BEL).
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