WP-234 Printer User’s Manual
24
RS-232 Serial
Version
Pin No. Signal
DTE Direction
Description
1
Chassis ground
-
Cable shield
2
(TD) Transmitted
From printer
Printer data output line
data
3
(RD) Received data
To printer
Printer data input line
7
(SG) Signal
-
Signal ground
10
+12VDC
To printer
Only w/9-12VDC option
11
(CTS) Clear to send
From printer
Signal (equivalent to
BUSY) indicating that
printer is ready for
operation and can
receive data.
21
Power return
To printer
Only w/9-12VDC option
Communication
Serial Interface Voltage Levels
Received data:
Mark = OFF = Logic “1” = -25V to -3V
Space = ON = Logic “0” = +25V to +3V
Clear to send:
Busy = OFF = Logic “1” = -9V
Not Busy = ON = Logic “0” = +9V
Transmitted data: Mark = OFF = Logic “1” = -9V
Space = ON = Logic “0” = +9V
The rest are not used.
Summary of Contents for WP-234
Page 1: ...WP 234 Printer User s Manual...
Page 6: ...WP 234 Printer User s Manual 6...
Page 34: ...Notes...
