Technical Reference Guide – Interface specifications > 28
RS-232C
SERIAL
INTERFACE
SPECIFICATIONS
I
NTERFACE
SIGNALS
NOTE
PIN
NO.
SIGNAL
CODE
SIGNAL
FUNCTION
1
Protective Ground
PG
—
Frame ground
2
Transmitted Data
TD
From printer
Data from
printer
3
Received Data
RD
To printer
Data to printer
4
Request to Send
RTS
From printer
Signal to
indicate printer
cannot receive
data in printer
Busy/Ready
protocol
7
Signal Ground
SG
—
Signal ground
11
Supervisory Send
Data
SSD From
printer
Signal
to
indicate printer
cannot receive
data in printer
Busy/Ready
protocol
20
Data Terminal
Ready
DTR From
printer
Signal
to
indicate printer
cannot receive
data in printer
Busy/Ready
protocol
5, 8 to
10, 12
to 19,
21 to 25
— —
—
Unused
1. Connector pin arrangement for above:
(Viewed from interface cable side)
13
25
1
14
Summary of Contents for ML1120
Page 1: ...ML1120 ML1190 eco Technical Reference Guide...
Page 212: ...Technical Reference Guide Appendix C Code pages 212 APPENDIX C CODE PAGES ML1190 eco...
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