A&D AD-8922A Manual de Instruções descarregar pdf (Página 28)

RS-232C

Transmission system : EIA RS-232C

Transmission form : Asynchronous, bi-directional, half duplex

Data format : Baud rate : 600, 1200, 2400, 4800, 9600, 19200 bps

Data bits : 7 bits or 8 bits

Parity bit : EVEN, ODD (Data bits 7 bits)

NONE (Data bits 8 bits)

Stop bits : 1 bit or 2 bits

Code : ASCII

Terminator : <CR> or <CR><LF>

Circuit

Connection to the weighing instrument Connection to an external device

D-Sub 9-pin (BALANCE/SCALE) DIN 8-pin (COMP.OUT)

No.

Signal

name

Direction Description

No.

Signal

name

Description

1 ⎯ ⎯ N.C. 1 HI HI contact-output

2 RXD Input Receive data 2 COM COM contact-output

3 TXD Output Transmit data 3 TXD Transmit data (RS-232C output)

4 ⎯ ⎯ N.C. 4 LO LO contact-output

5 SG ⎯ Signal ground 5 SG Signal ground

6 DSR Input Data set ready 6 OK OK contact-output

7 RTS Output Request to send 7 DSR Data set ready (RS-232C output)

8 ⎯ ⎯ N.C. 8 RXD Receive data (RS-232C output)

9 ⎯ ⎯ N.C.

(AD-8922A is a DTE. Connects to a DCE

such as a weighing instrument using a

straight through cable.)

9876

TXD

RXD

COM

DSR

AD-8922 A interior

AD-8922A interior

TXD

RXD

54321

To a weighing instrument

To an external device such as

a personal computer or a printer

Inch screw thread

(#4-40UNC)

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 41 42

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A&D AD-8922A Manual de Instruções Página 28

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