Rs-232C Serial Interface; Interface Specifications - Star HSP7000 SERIES Hardware Manual

13. RS-232C Serial Interface

13-1. Interface Specifications

(1) Data transmission method:
(2) Baud rate:
(3) Word length
(4) Signal polarity
MARK "1"
SPACE "0"
Asynchronous
Selectable from 4800, 9600, 19200, 38400 bps
(Refer to "11. 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-232C
MARK: Logic "1" (–3 V to –15 V)
SPACE: Logic "0" (+3 V to +15 V)
b0 b1 b2 b3 b4
A B
– 65 –
b5 b6 (b7)
C D
A: Start bit
B: Data bit
C: Parity bit
D: Stop bit