A&D Weighing Indicator AD-4329 - Manual (Page 47)

12. RS-232C Interface
12.1.1. Specification
Transmission Asynchronous, bi-directional, half-i
Baud rate 600, 1200, 2400, 4800, 9600 bps
Data bits /bits
Parity bits 1 bit, Even
Start bit 1 bit
Stop bit 1 bit
Code ASCII
Terminator CR LF (CR:0Dh, LF: OAh)
Connector D-sub 25 pin connector
Circuit and Pin Connection
Pin No. Signal name Direction Description
1 Case Shield
2 RXD Input Received data
3 TXD Output Transmit data
4 RST
- Pin 4 is connected to pin 5
5 CTS
6 DSR Output Data set ready
7 SG
-
Signal ground
Other Not used
Case Shield
RS-232C
Bit Format
LSB
0 1 2 3 4 5
MSB
6
\________________ /
Start bit
L
T.. r - 1 -5V--15V
■ ... 0 +5V--+15V
Stop bit
Parity bit
12. RS-232C interface. Page 44 AD-4329 Weighing Indicator