User`s manual

BD2-2880/2890 User’s Manual

7. SERIAL INTERFACE

7.1 Specifications

(1) Data transfer system: Asynchronous

(2) Baud rates

1200, 2400, 4800, 9600, 19200 bps (Selectable by user)

(3) Configuration of one word

Start bit : 1 bit

Data bit : 8 bits Fixed

Parity bit : Odd/Even or No parity (Selectable by user)

Stop bit : 1 bit or more

(4) Signal polarity

RS-232C

• Mark = logic “ 1” (–3V ~ –12V)

• Space = logic “ 0” (+3V ~ +12V)

(5) Receiving data (RD signal)

RS-232C

• Mark = 1

• Space = 0

(6) Receiving control (DTR signal)

RS-232C

• Mark : Data transfer is not available

• Space : Data transfer is available

(7) Transmission control (TD signal)

DC1 code (11H) X-ON : Data reception is available

DC3 code (13H) X-OFF : Data reception is not available