Panasonic KX-TDA600 Installation Manual page 297

Connection Charts
For connecting a printer/PC with a 9-pin RS-232C connector
PBX (9-pin)
Circuit Type Signal
(EIA) Name
BB RD (RXD)
BA SD (TXD)
CD ER (DTR)
AB SG
CC DR (DSR)
CA RS (RTS)
CB CS (CTS)
For connecting a printer/PC with a 25-pin RS-232C connector
PBX (9-pin)
Circuit Type Signal
(EIA) Name
BB RD (RXD)
BA SD (TXD)
CD ER (DTR)
AB SG
CC DR (DSR)
CA RS (RTS)
CB CS (CTS)
RS-232C Signals
•
Receive Data (RXD):...(input)
Conveys signals from the printer or the PC.
•
Transmit Data (TXD):...(output)
Conveys signals from the unit to the printer or the PC. A "Mark" condition is held unless data or BREAK
signals are being transmitted.
•
Data Terminal Ready (DTR):...(output)
This signal line is turned ON by the unit to indicate that it is ON LINE. Circuit ER (DTR) ON does not indicate
that communication has been established with the printer or the PC. It is switched OFF when the unit is
OFF LINE.
•
Signal Ground (SG)
Connects to the DC ground of the unit for all interface signals.
•
Data Set Ready (DSR):...(input)
Pin No.
2
3
4
5
6
7
8
Pin No.
2
3
4
5
6
7
8
2.14.1 Connection of Peripherals
Printer/PC (9-pin)
Signal
Pin No.
Name
2 RD (RXD)
3 SD (TXD)
4 ER (DTR)
5 SG
6 DR (DSR)
7 RS (RTS)
8 CS (CTS)
Printer/PC (25-pin)
Signal
Pin No.
Name
1 FG
3 RD (RXD)
2 SD (TXD)
20 ER (DTR)
7 SG
5 CS (CTS)
6 DR (DSR)
4 RS (RTS)
Circuit Type
(EIA)
BB
BA
CD
AB
CC
CA
CB
Circuit Type
(EIA)
AA
BB
BA
CD
AB
CB
CC
CF
Installation Manual 297