Star Micronics TSP552II Manuale Utente Pagina 106

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APPENDIX
C-1-3. Cable Connections
(1)The followings are a recommended interface cable connections.
or
(2)If power is to be supplied from the interface connector, use wires with
sufficient length and thickness to prevent voltage drop.
FG
TXD
RXD
RTS
CTS
DSR
DTR
SG
FG
TXD
RXD
RTS
CTS
DSR
DTR
SG
Printer Host
1
2
3
4
6
1
2
3
4
5
6
7
8
20
FG
TXD
RXD
RTS
DSR
20
25
7
SG
DTR
INIT
Printer side
(D-sub 25 pin)
Host side
3
2
7
8
6
5
1
4
FG
TXD
RXD
RTS
CTS
DSR
SG
DCD
DTR
9 pin25 pin
C-1-4. Electrical Characteristics
Voltage Data signal Control signal Binary status
-3V to -12V Mark OFF 1
+3V to +12V Space ON 0
MAX211 or
equivalent
Rin
Tout
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