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Serial (RJ-11) Alternative Connector
The printer operates as a Data Communication Equipment (DCE) and those
printers with ethernet connectors also have an alternative serial RJ-11
interface used to connect to a Data Terminal Equipment (DTE) such as a
computer or terminal with a default configuration of 9600 baud, 8 bit data,
1 stop bit and No parity.
Note that looking into the printer's connector with the key notch pointing
down, pins are numbered from left to right.
980481-001A 45
DCD
RxD
TxD
DTR
GND
DSR
RTS
RI
CTS
PrinterHost
6
1
5
2
4
3
3
4
2
5
1
6
7
8
9
DB-9
Pin #
RJ-11
Pin #
Female DB-9 to RJ-11
*+5 volts @ 160 mA max.
TxD
RxD
+5V*
GND
BUSY
RTS
Pin 3
Pin 2
Pin 1
Pin 4
Pin 5
Pin 6
Front View of RJ-11
Modular Connector