Opeation
In te rf ac es
7
Connectio n No.
Signal
Directio n
Comment
2
3
TXD
RXD
OUT
IN
Data Output
Data Input
5
6
7
GND
DTR
---
OUT
CTS
IN
Signal Ground
Host may send data
Host can receive data
Serial Interface RS232 (V.24) SUB-D 9 Pin Socket
T i m i n g e i n e r s e r i e l l e n S c h n i t t s t e l l e
L S B
M S B
S tar t
S t o p S t o p
P a r
S tar t
1 Z e i c h e n : ( 1S tar t, 8 D ate n , 1 P ar i ty , 2 S to p )
" 1" ( M ar k )
0
1
2
3
4
5
6
7
B i t
A c h t u n g
: S tan d ar d S c h n i tts te l l e h at k e i n P ar i ty B i t
A c h t u n g
: S ta n d a r d S c h n i tt s te l l e h a t z w e i S to p B i ts
" 0" ( S p ac e )
OPTION (only factory-installed)
Serial Interface TTL SUB-D 9 Pin Connector
Connectio n No.
Signal
Directio n
Comment
1
2
Vcc
RXD
---
IN
+ 5V logic
data input
3
4
5
6
dtr
CTS
OUT
IN
GND
dsr
---
(optiona l for power-d own)
host can receive data
signal ground
7
8
9
TXD
RTS
OUT
OUT
dcd
data output
host may send data
(optiona l for reset IN)
Signal Position
Level TTL
Level RS 232 (V.24)
Level RS 422 / 485
"1" (mark)
"0" (space)
+5V (TTL level)
0V (TTL level)
-3V ....-12V
+3V .. +12V
A < B (0.2-6V)
B > A (0.2 - 6 V)
G e B E E +F G m b H • w w w . o e m - p r i n te r . c o m • G e B E D o c . N o . S M A N - E - 487 - V 1. 1 • G P T - 444 3 • P ag e 7/ 12
