OKI 407II Manual De Usuario

–  –

F-GND

—

Frame ground

TXD

OUT

Transmission data

RXD

IN

Receive data

RTS

OUT

Same as DTR signal.

N/C

Not used

6

DSR

IN

Status of this signal is not checked.

In DTR/DSR communication mode, indicates whether 

data receive from host is enabled or disabled.

Space: Receive enabled

Mark: Receive disabled

(except when transmitting data by DLE EOT, and GS a)

This signal is not checked in the X-ON/X-OFF com-

munication mode.

S-GND

—

Signal ground

~

N/C

Not used

0

DTR

OUT

Indicates whether data receive from host is enabled or 

disabled.

  Space when receive is enabled.

  Always  space,  except  during  following  condi-

tions:

•  Period between reset and communication ena-

bled

•  During self printing

Indicates whether data receive from host is enabled or 

disabled.