BIXOLON SRP-330 - Manual (Page 10)

Rev. 1.05 - 10 -
SRP-330
Pin
Number
Signal
Name
Signal
Direction
Function
2 TXD Output Transmit data
3 RXD Input Receive data
4 DTR Output
This signal indicates whether the host computer can
receive the data. (Hardware flow control)
1) MARK (Logic 1): Host computer can receive the data.
2) SPACE (Logic 2): Host computer cannot receive the
data.
3) Printer checks the signal and sends the data when
ready.
4) Printer does not check this signal if XON/XOFF flow
control is selected.
5
Signal
GND
- Signal ground
6 DSR Input
This signal indicates whether the printer is in operation.
(hardware flow control)
1) MARK (Logic 1): Printer is in operation.
2) SPACE (Logic 2): Printer is not in operation.
3) Printer checks the signal from the host and transmits
the data when ready.
4) Printer does not check this signal if XON/XOFF flow
control is selected.
7 RTS Output
This signal indicates whether the host computer can
receive the data. (Hardware flow control)
1) MARK (Logic 1): Host computer can receive the data.
2) SPACE (Logic 2): Host computer cannot receive the
data.
3) Printer checks the signal and sends the data when
ready.
4) Printer does not check this signal if XON/XOFF flow
control is selected.
8 CTS Input
This signal indicates whether the printer is in operation.
(Hardware flow control)
1) MARK (Logic 1): Printer is in operation.
2) SPACE (Logic 2): Printer is not in operation.
3) Printer checks the signal from the host and transmits
the data when ready.
4) Printer does not check this signal if XON/XOFF flow
control is selected.