Adata SP300 Specifications download pdf (Page 11)

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2-1. Interface Specifications

1 Data transmission method: Asynchronous serial interface

2 Baud rate: Selectable from 150, 300, 600, 1200,

2400, 4800, 9600, 19200 (Twin Head

only) bps (Refer to Installation

Manual.)

3 Word length Start bit: 1 bit

Data bit: 7 or 8 bits (selectable. Refer

to Installation Manual.)

Parity bit: Odd, even or none

(selectable. Refer to Installation

Manual.)

Stop bit: 1 or 2 bit length

4 Signal polarity RS-232C (Standard feature)

MARK : Logic “1”(–3V to –25V)

SPACE : Logic “0” (+3V to +25V)

Current loop (optional)

MARK : Logic “1”(current ON)

SPACE : Logic “0” (current OFF)

RS-422A (Optional)

MARK : Logic “1”

A is –0.2V or less than B

SPACE : Logic “0”

A is 0.2V or more than B

2. SERIAL INTERFACE

b0 b1 b2 b3 b4 b5 b6 (b7)

ABCD

Mark [1]

Space [0]

A: Start bit

B: Data bits

C: Vertical parity bit

D: Stop bit

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 69 70

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Adata SP300 Specifications Page 11