Rs232C Port Com1 Circuit; Rs232C Port Com2 Circuit - Casio TK-6500 Service Manual

6-9. RS232C port COM1 circuit

The COM1 circuit is as follows:
The COM1 port pin location is as shown below:
Signal Pin
CD 1
RxD 2
TxD 3
DTR 4
GND 5
DSR 6
RTS 7
CTS 8
CI 9

6-10. RS232C port COM2 circuit

The circuits of COM2 is as follows:
NOTE: TK-6500 has no COM3 port.
COM2
1 2 3 4
5
6 8 9
7
NOTE: COM3 is not used for TK-6500.
- 17 -
TP48