30
Alternately you can just connect the 3 wires as follows:
Host 25S
Printer 9P
Host 9S
Printer 9P
TX 2
……… 3 RX
RX 2
……… 2 TX
RX 3
……… 2 TX
TX 3
……… 3 RX
GND 7
……… 5 GND
GND 5
……… 5 GND
pin 4
pin 4
pin 5
pin 6
pin 6
pin 7
pin 20
pin 8
Baud rate : 9600, 19200, 38400,57600
Data format: always 8 data bits, 1 start bit and 1 stop bit.
Parity : always non parity.
Flow control: RTS/CTS (Hardware flow control).
If you are using software or drivers under the Windows environment, the
flow control must be set to “hardware”
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