A&D Weighing ML-50 - Manual (Page 52)

MS-70 / MX-50 / MF-50 / ML-50 50
11.1. 11.1. 11.1. 11.1. RS RS RS RS----232C Serial Interface 232C Serial Interface 232C Serial Interface 232C Serial Interface
RS RS RS RS----232C Serial Interface 232C Serial Interface 232C Serial Interface 232C Serial Interface
Transmission system EIA RS-232C
Transmission form Asynchronous, bi-directional, half duplex
Data format Baud rate 2400bps
Data bits 7bits
Parity EVEN
Stop bit 1bit
Code ASCII
Terminator CR LF (CR: 0Dh, LF: 0Ah)
Bit format
Pin Connections Pin Connections Pin Connections Pin Connections
2.6mm, metric screw thread
MX-50 and MF-50 (DCE) Computer (DTE)
Pin No. Signal Name 2 Description
Direction
Signal Name
1 FG Frame ground - FG
2 RXD Receive data
←
TXD
3 TXD Transmit data
→
RXD
4 RTS Ready to send 3
←
RTS
5 CTS Clear to send 3
→
CTS
6 DSR Data set ready
→
DSR
7 SG Signal ground - SG
16, 18, 19,
21, 23
Internal use Do not connect 1
Other Not used
1: Normal DOS/V cables do not use these terminals.
2: Signal names of the analyzer side are the same as the DTE side with TXD and
RXD reversed.
3: RTS and CTS control are not used. CTS output is HI always.
RS-232C
-5 V to -15 V
+5 V to +15 V
Data bits
Start bit Parity bit
Stop bit