Serial Interface - Star Micronics NX-2415II User Manual

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