RW973 User Manual
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5.4 Serial interface and Ethernet interface
Printer RW973 serial interface is compatible with RS-232 standard, with 9 pin (D hole
type) socket.
Serial interface definition
Ethernet interface definition
PIN No.
Signal definition
PIN 1
-
PIN 2
TXD
PIN 3
RXD
PIN 4
-
PIN 5
GND
PIN 6
DTR
PIN 7
CTS
PIN 8
RTS
PIN 9
-
PIN No.
Signal definition
1
TX+
2
TX-
3
RX+
4
n/c
5
n/c
6
RX-
7
n/c
8
n/c