Download 13 BARR/SPOOL Operation

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A.3
Printer Cable Specifications for 25-Pin Serial Ports
This type of printer cable is also called a null-modem cable. It has a D25
male connector that plugs into the printer, and a D25 female connector
that plugs into the PC serial port.
Printer
(D25 Male)
Name
PRO-GND
RXD
TXD
SIG-GND
Pin
1
3
2
7
DTR
20
CTS
DSR
DCD
5
6
8
PC Serial Port
(D25 Female)
Pin
Name
1
PRO-GND
2
TXD
3
RXD
7
SIG-GND
5
CTS
6
DSR
8
DCD
20
A.3 Printer Cable Specifications for 25-Pin Serial Ports
DTR
BARR/SPOOL 245