Rice Lake TP Series, Rice Lake Weighing Systems - Software Development Kit - Manual (Page 12)

8 TP Series
2.3.2 Connection Between Balances and Personal Computers
Figure 2-7. Sample connection with an IBM-PC/AT compatible
Figure 2-8. Sample connection with PC9801
2.3.3 Interface Specifications
6. Transmission System - Serial transmission with start-stop synchronization
7. Transmission rates - 1200/2400/4800/9600 bps.
8. Transmission codes - ASCII codes (8-bit)
9. Signal levels - Compliant with EIA RS-232C
HIGH level (data logic 0) +5 to +15V
3
2
5
1
7
8
6
4
TXD
RXD
GND
DCD
RTS
CTS
DSR
DTR
RXD
TXD
GND
3
4
5
IBM-PC/AT compatible
D-SUB9P
Balance
DIN5P
TXD
RXD
GND
DCD
RTS
CTS
DSR
DTR
RXD
TXD
GND
3
4
5
3
2
5
20
7
8
6
4
PC9801 Balance