Star Micronics RS232 - Manual (Page 12)

– 8 –
Pin No. Signal name Direction Function
Star mode
Data terminal ready signal.
When the printer is ready to receive data, this
signal changes to “SPACE”.
5 SG — Signal ground
6 DSR IN Signal line that indicates whether the host can
receive data
Space : Host can receive data
Mark : Host cannot receive data
Does not confirm the status of this signal in XON/
XOFF communication or STAR mode.
This signal line can be used as an external reset
signal by setting the DIP switches. A pulse width of
1 ms or more mark state activates reset.
7 RTS OUT Same as DTR signal.
8 INIT IN This signal line can be used as an external reset
signal by setting the DIP switches. A pulse width of
1 ms or more space state activates reset.
9 FAULT OUT In the Star mode, the printer will enter the mark
state during the following errors: no paper, head up,
cutter error. In ESC/POS mode, this is normally
space.
SERIAL