(4)
Chip
switch(CS4)
The
chip
switcn(CS4)
defines
the
condition
RS232C
communication
interface.
of
sending/receiving
of
the
TxD
sig
is
outputted
tip
is
inserted
Q
TxD
sig
is
outputted
tip
is
in
7.
|
|
1 - ~ ’ \ ’ / 1 - ’ * ‘ ~
I
[___
__
8
7
56 psi
4
3
:Z
i
RTS
sig
is
outputted
the
tip
is
in
6
O
:Oml
0
|
0
W
RTS
sig.
is
outputted
the
tip
is
in
5
I
’
|
O
EO
OE
O
EO
O
f"DCD
sig.
becomes
active
if
the
tip
is
in
Q
5__l_.§__,_.
I
DCD
sig
becomes
earthed
if
the
tip
is
in
3
4
pcs
of
tips
_
_
_
_
_
are
in
this
Switch
,
CTS
sig
becomes
active
it
the
tip
is
in
4
CTS
sig
becomes
earthed
if
the
tip
is
in
3
Fig.
10-6
In
the
case
that
outside
equipment
is
connected
through
RS-232C
communication
interface,
the
matching
of
the
baud
rate
and
signal
logic
to
outside
equipment
is
necessary.
The
meaning
of
the
signals
which
select
sending/receiving
condition
is
as
follows:
TxD
signal:
(output)
low
level.
RTS
signal:
To
request
The
signal
If
earthed
DCD
signal:
CTS
signal:
Data
is
in
Sending
data
signal
to
outside
equipment.
TxD
means
signal
is
sending
data
to
outside.
RTS
means
signal
is
low.
that
indicate
that
sending
is
done
from
outside
equipment
condition,
this
unit
only
do
receiving.
receiving
condition
to
outside
equipment.
If
earthed,
always
accept
to
recieve.
90
Summary of Contents for MB-6890
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