NCI MiniPrinter 122 Series User Manual page 22

Model 1220 (2600) Model 1220 (2600) Model 1220 (2600) Model 1220 (2600) Model 1220 (2600)
RS RS RS RS RS-232 Serial V -232 Serial V -232 Serial V ersion ersion
-232 Serial Version -232 Serial V ersion ersion
Pin No. Pin No. Pin No. Pin No. Pin No. Signal Signal Signal Signal Signal
1 Chassis ground
2 (RD) Received data
5 (CTS) Clear to send
7 (SG) Signal
The rest are not used.
Serial Interface V Serial Interface V
Serial Interface V Serial Interface V Serial Interface Voltage L
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
17 17 17 17 17
DTE Direction DTE Direction DTE Direction DTE Direction DTE Direction Description Description Description Description Description
_ Cable shield
To printer Printer data input line
From printer Signal (equivalent to
BUSY) indicating that
printer is ready for
operation and can
receive data.
_ Signal Ground
oltage L oltage L evels evels
oltage L oltage Levels evels evels