Tally T5023+ Programming Manual page 383

Appendix
Cable connection document printer - PC
Pin- Document printer
No. 9-pin plug
1 Printer switched on
(+12V)
2 RD Received Data
Serial data entry printer
3 TD Transmitted Data
Serial data exit printer
4 DTR Data Terminal
Ready exit
In the DTR/Busy
protocol the 'ON' status
signals the connected
device (signal receiver)
the readiness to receive
data
5 SG-Signal Ground
6 DSR Data Set Ready
7 RTS Request to Send
In the DTR/Busy
protocol the 'ON' status
signals the connected
device (signal receiver)
the readiness to receive
data
Description of the physical interface
Cable
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T5023/5023+ - Programming Guide
Pin-No. PC
9-pin plug
1 DCD Data Carrier
Detect
3 TD Transmitted
Data
2 RD Received Data
6 DSR Data Set
Ready
5 SG-Signal Ground
4 DTR Data Terminal
Ready
8 CTS Clear to Send
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