Serial Interface - Star Micronics LC24-20 User Manual

Serial Interface
Name Pin Function
1 GND
Printer's chassis ground.
2
TXD
This pin carries data from the printer.
This pin carries data to the printer.
This pin is always set space.
This pin is Space when the computer is ready to
send data.
This printer does not check this pin.
3
RXD
4 RTS
5 CTS
6
N/C
7
GND
Signal ground.
8-10
N/C
This printer turn this pin Space when it is ready
to receive data.
This line carries the same signal aspin
20.
RCH 11
12
N/C
GND
Signal ground.
14-19
N/C
This printer turns this pin Space when it is
ready to receive data.
20
DTR
21-25
N/C
148