Appendix A: Serial Interface; A-1. Connectors And Signals - Star SP200F Série Mode D'emploi

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A-1. Connectors and Signals

RS-232C
Pin no. Signal name
1
F-GND
2
N/C
3
RXD
4
RTS
5-6
N/C
7
S-GND
8-10
N/C
11
RCH
12
N/C
13
GND
14
FAULT
15-19
N/C
20
DTR
21-25
N/C
RS-422A
Pin no.
Signal name
9
SD (+)
10
SD (–)
17
RD (+)
18
RD (–)
24
RS (+)
25
RS (–)

Appendix A: Serial Interface

I/O direction
Frame ground
Not connected
IN
Received data
OUT
Data transmission request signal. This is always
"SPACE" when the printer is turned on. (Always
"SPACE" status)
Not connected
Signal ground
Not connected
OUT
When the printer is ready to receive data, the signal line
is same as pin 20.
Not connected
Signal ground
OUT
When printer error occurs (such as paper out, mechani-
cal error, etc.) this signal changes to "MARK".
Not connected
OUT
Data terminal ready signal. When the printer is ready to
receive data, this signal changes to "SPACE".
Not connected
I/O
direction
OUT
OUT
IN
IN
OUT
OUT
14
1
Fig. A-1 Serial interface connector
– 87 –
Function
Function
Transmitted data
Transmitted data
Received data
Received data
Data transmission request signal. When the
printer is ready to receive data, this signal
changes to "SPACE".
Data transmission request signal. When the
printer is ready to receive data, this signal
changes to "SPACE".
25
13

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