A&D Weighing AD-4407 User Manual

Page 48

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AD-4407 Weighing Indicator

13.

13. RS

RS-

-232C Interface

232C Interface

13.1.

13.1. Specification

Specification

Transmission Asynchronous,

bi-directional,

half-duplex

Baud rate

600, 1200, 2400, 4800, 9600 bps

Data bits

7 bits, 8 bits

Parity bits

1 bit, Even or Odd (for 7data bits) or Non parity (for 8 data bits)

Start bit

1 bit

Stop bit

1 bit

Code ASCII

Terminator

CR LF, CR (CR: 0Dh, LF: 0Ah)

Connector Terminal

block

Circuit

Circuit and Pin Connection

and Pin Connection

Pin No. Signal name Direction

Description

1 TXD

Output

Transmit

data

2 RXD

Input

Received

data

DSR

Output

Data set ready

4 SG

Signal

ground

Shield (Frame ground)

Bit

Bit Format

Format

data

bits

data

bits

13. RS-232C Interface

RS-232C

6:& 4:& &54 5) ()

Shield