A&D AD-4405 User Manual

Page

AD-4405 Weighing Indicator

16.

16. RS

RS-

-232C Interface

232C Interface

16.1.

16.1. Specification

Specification

Specifications

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

D-sub 9 pin connector

Circuit and Pin Connection

Pin No. Signal name

Direction

Description

2 TXD

Output Transmit

data

3 RXD

Input Received

data

5 SG

Signal

ground

DSR

Output

Data set ready

7 (RTS)
8 (CTS)

Pin 7 is connected to pin 8

Case

Shield (Frame ground)

Other

Not

used

Bit Format

Data 7 bits

Data 8 bits

16. RS-232C Interface

(male contact)