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All
and
more
about Sharp
PC-1500
at
http://www.PC-1500.info
To
make connection with
other peripheral
units, check
specifications
of
the
peripheral unit
if
they
should
match with
those of
the CE· 158. and use an appropriate
cable
to
connect
with.
Cau
tions described
below
are basic
reQuirements
and they a
re
ex.
e mpt in
terms
of
software.
You will have to judge for
yourself
after reading the command description.
(11·
Electrical characteristics
Make
sure
that it
is
in
compliance with the EIA
RS-232C
standa:rds.
(2) Transmission method
The CE-158
is
operated in the a:synchronous mode, not the synchronous
mode.
{3) Transmission procedure
No
procedure
is
used.
(4)
Baud
rate and transmission data format
Make
sure
that it is in
compliance
with
baud
rate
and data
format.
{5) Code system
This
unit
us~s
the
ASCII code
o:r interna
l
codes
in
use.
(6)
Connector
Use
the
25·pin
DB·25{W)
conne<:tor.
(7)
Interfacing
signal
As
four i
nput
signal
l
ines and three
output
signal
l ines
are used,
it
w
ill
reQu ire
fou
r
l
ines
for
signal inpu
t.
In
case
one output
line
should
be
connected
with two
inpu
t
li
nes,
attcn·
t ion
must be paid to the
load
resistance as
it
may
not
mee
!
w it
h
the E IA
requirement.
{8)
Signal
flow
to
peripheral
Because
this
unit
is a
data
terminal,
connector
signals
are
designed fo
r
transmission
he·
t......een
the
data
terminal
and
the
data
co
mmu
nication unit
.
Ther
efore,
it
neeels
to
1.1se
1hl!
cable where
signal
flow
is inverted, if
the
peripheral unit is also
a
data
term ina
l.
(See figure
below.)
The
majoritY of data
commu1
)ication
units
are acoustic
couplers,
bu
t
the
pfintf!(
X·Y
plotter.
personal eomputer,
ete.,
are data
terminal
in every
tase
.
2
TD
T
D
2
3
R
D
RD
3
4
RTS
RT
S
4
5
CTS
CTS
5
6
DSR
D
SR
6
7
S
G
S
G
7
8
CD
~
............
c
o
8
20
OTR
DT
R
20
CE·
158
Peripheral
•
So
far as
CD and DSR
concerned,
it
will
be regarded as
the O
N
state when
open,
wh
ile
other
inputs
are regarded
as
the
OFF
state.
•
When OTA
is
connected
to
CD
in
addition
to
DSR.
it
causes h
0
oth
input
signal
levels to go
out of given
ratings
(+3
-
15 V
and
-3
-
15
V)
dissatisfying
the EIA
requirements.
14
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sell
this PDF
!!!
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