– –
13-2. RS-232C Connector
Pin No.
Signal name
Direction
Function
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
STAR Mode
Status of this signal is not checked.
ESC/POS Mode
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
STAR Mode
Indicates whether data receive from host is enabled or
disabled.
1) DTR/DSR Communication Mode
Space when receive is enabled.
2) X-On/X-Off Communication Mode
Always space, except during following condi-
tions:
• Period between reset and communication ena-
bled
• During self printing
ESC/POS Mode
Indicates whether data receive from host is enabled or
disabled.
Summary of Contents for OkiPos 407II
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