...
'
5.2.st.raps
and..jurllpCrS
.'
.
.
...
.
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.
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.
.
.
.
...
...
<..
..
.
,
.
.
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. .
. .
..
...
.
:
me
communication
boardf6r
kS485
(~~485)
~h@l'be~g~~ed
.tot
DG
in
,......
'.
.
.......
I .
. .
.......
.
'.
,-
.'.
;
.
.
.
.>
. .
-4
...
.. .
....
.
.:
.
...
......
...._.....
:.,~e
ciic
of
SAtiCcjn
0~-2$l45.;iirid
SanCdii,d~~i~,
in
....
b,thct
.
wordsf
.....
~$l.'&.the:'.'.,
...............
..:.
..
........
....
........
....
.-
J..,
.
.
...
....
'~:board:shall.k.stmpped:bctwccnripi&~
.
....
I ,and
2..
.
'.
:
.
:,
... .
:.
....
.
..
.
. ...........
.
,.
.
....... .
:
...:
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..,
....I.
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....
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8.
.
...i.
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,
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.- .
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.
,
..
.,.
.
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-.
'
..
.
..
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XJ2-XJ9
.on the tomrnunication board
(~~485)
shall
be
jAp4
between
'
.:
. .
.
.
......
...
.pins.l
and
2..These
&istors.are'fixcd.juniped
puLl
up/&wn
&~~istor3.@75
R:'
.
:.
:
,
.
,
...
...
....
.
.
.
.
,
.
teiiiiial
resistors). These
fixed
jumpers
can
be
disco~eckd by catling themi
,
.
.
'.
.
. .
.....
. .
...
.
.
.
.
. .
.
.
.....
...
.
RS232C.i~ .us.&
phrnarily
for ten&ihal.~munjcati but
kin
also
be
used
'
,
...
.....
.
.
. .
for conhhicatioi
with
other sy&ms via
COMLI
whin the'.s$sterns
.&-e.
.
-
.
. .
'w~ected point-to-point
RS232C is a standard communication interface designed for -12
V
and
+12
V
signal levels. The maximum transmission distance depends
on
the
transmission
speed
but at
9600
Baud is at lean
40
meters.
Handshaking
with
the terminal
is
either via the signals RTS-CTS or
with
XON-XOFF.
If
RS232C is used. terminals or other control systems
can
be
connected
to
the 12-pole screw terminal (designed primarily for RS232C and telephone
modem) or
the
%-pole connector on
the
communication
board.
The 34-pole
flat
cable can
also
be
split for connecting two RS232C interfaces.
The
connections
are
as
foUows:
34-Pole connector
1
Zpole screw terminal
11
13
OV
15 DCDl
17
19 TD2
21
RD2
23 RTS2
25
CTS2
2
7
29
OV
31 DCD2
33
N.C
N.C
Position of
the
signals
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