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Signal Description and Pin Assignment
Pin No.
Signal Name
Direction
Description
Wire Color
1
FG
2
so
Out
3
RO
In
4
RTS
Out
5
CTS
In
6
DSR
In
7
SG
8
co
In
20
DTR
Out
Frame
Ground
Transmitted Data
Received
Data
Request to Send
(Th is is the
signal
to
request
sending
the
signal
for the
connected
terminal.
)
Clear to Send
(This
signal is
used for
with·
holding tim ing
of
the
transmitted data.)
Data
Set
Ready
(This
signal
is showing the
timing of
setting
data
from the
terminal.)
Signal
Ground
Received Line Signal
Detector
(In
case the modem is
connected. this
signal
is used
for the
carrier
detect.)
Data
Terminal
Ready
(This
signal
is
showing the
connected termi
nal
is ready
or not.)
(Drain
wire)
Red
Orange
Yellow
Green
Blue
(Drain wire)
Gray
Black
Note:
"
Direction
"
; This is the direction of
sig
nal
flow as viewed from RS -232C
peripheral.
All signals are compatible with EIA RS-232C
Standard.
SPECIFICATIONS
Transmission System:
Transmission
Speed:
Transmission Code
:
How to
Set
Transmission
Speed
:
~
Output
Level of
Line
Driver:
Asyncronous
serial
transm ission
50,
75,
11
0.150,
200,
300,
600,1200,2400
,
4800,
9600 bps
selectable;
accuracy
0.5%
or less
5, 6,
7
or
data
bits
1
or
2 stop bits
Set
manually by dip switches
in
the bottom
of
the
unit
±1
0V
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