A&D Weighing GX-8000 Addendum User Manual
Rs-232c serial interface / external input
65
16.
RS-232C SERIAL INTERFACE / EXTERNAL INPUT
RS-232C
The balance is a DCE device. Connect the balance to a personal computer (DTE), using a straight
through cable or a modem cable.
Transmission system
: EIA RS-232C
Transmission form
: Asynchronous, bi-directional, half duplex
Data format
: Baud rate
: 600, 1200, 2400, 4800, 9600 bps
Data bits
: 7 or 8 bits
Parity
: Even, Odd (Data bits 7 bits)
None
(Data bits 8 bits)
Stop bit
: 1 bit
Code
: ASCII
Pin connections
Pin No.
Signal name
Direction
Description
1
FG
-
Frame ground
2
RXD
Input
Receive data
3
TXD
Output
Transmit data
4
RTS
Input
Ready to send
5
CTS
Output
Clear to send
6
DSR
Output
Data set ready
7
SG
-
Signal ground
18
Input
Same as the PRINT key
19
RE-ZERO
Input
Same as the RE-ZERO key
8 – 25 (Excluding 18 and
19)
-
-
Not connected
Note
The signal names for the RS-232C are the same as those for the DTE side except TXD and
RXD.
Circuits