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Appendix Description of the physical interface
T5023/5023+ - Programming Guide 373
Cable connection document printer - PC
Pin-
No.
Document printer
9-pin plug
Cable Pin-No. PC
9-pin plug
1 Printer switched on
(+12V)
==> 1 DCD Data Carrier
Detect
2 RD Received Data
Serial data entry printer
‹== 3 TD Transmitted
Data
3 TD Transmitted Data
Serial data exit printer
==> 2 RD Received Data
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
==> 6 DSR Data Set
Ready
5 SG-Signal Ground <==> 5 SG-Signal Ground
6 DSR Data Set Ready <== 4 DTR Data Terminal
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
==> 8 CTS Clear to Send