l Serial interface
I I
Pin No. Signal
Name Direction Function
1 GND Chassis ground.
2 TXD OUT C&es data from the printer.
3 RXD IN Carries data to the printer.
14 1 RTS 1 OUT 1 On when the printer is ready to 1
receive data.
t Unused.

7 - -.‘-

GND -
8-19 N/C
20 -- DTR OUT
I I I I receive data. I
121-25 1 N/C 1 Unused.
-
102