Rs-232C Serial Interface; Interface Specifications - Toshiba 4679 User Manual

11. RS-232C Serial Interface

11-1. Interface Specifications

1 Data transmission method:
2 Baud rate:
3 Word length
4 Signal polarity
MARK "1"
SPACE "0"
Asynchronous serial interface
Selectable from 4800, 9600, 19200, 38400 bps
(Refer to "10. DIP Switch Setting".)
Start bit: 1 bit
Data bit: 7 or 8 bits (selectable.)
Parity bit: Odd, even or none (selectable.)
Stop bit: 1 bit length
RS-232
MARK: Logic "1" (–3V to –15V)
SPACE: Logic "0" (+3V to +15V)
b0 b1 b2 b3 b4
A B
– 45 –
b5 b6 (b7)
C D
A: Start bit
B: Data bit
C: Parity bit
D: Stop bit