- 45 -
OPTION ( RS-485/422 :: COM2 & CLOCK )
Real Time Clock
How to connect to printer (COM2)
Signal
Pin
No.
Description
IN(+)
1
COM2 (Input RS-422)
(TxD)
2
COM1 (Input RS-232)
(RxD)
3
COM1 (Output RS-232)
OUT(-)
4
COM2 (Output RS-422)
IN(-)
5
COM2 (Input RS-422)
OUT(+)
6
COM2 (Output RS-422)
Signal Ground
7
GND(RS-232)
(TxD)
8
COM2 (Output RS-232)
Signal Ground
9
GND(RS-232)