SATO WS4 Series Operator's Manual page 102

7 Specifications
Host (DB9)
Signal Description
CD Carrier Detect
RxD Receive
TxD Transmit
DTR Data Terminal Ready
GND Ground
DSR Data Set Ready
RTS Request to Send
CTS Clear to Send
CI
Pin Pin
1
2
3
4
5
6
7
8
9
91
Printer (DB9)
Description
1 Provide 5V Power
2 Receive
3 Transmit
4 No Connection
5 Ground
6 Pull High
7 Request to Send
8 Clear to Send
9 Pull High
Interfaces
Signal
+5V
RxD
TxD
NC
GND
Hi
RTS
CTS
Hi