SATO WS408TT Service Manual page 23

RS232C
5 3
4
9 8
Signal
CD
RxD
TxD
DTR Data Terminal Ready
GND
DSR Data Set Ready
RTS Request to Send
CTS
CI
2 1
7
6
Host (DB9)
Description Pin
Carrier Detect
Receive
Transmit
Ground
Clear to Send
Pin Signal
1 +5V
2 RxD
3 TxD
4 NC
5 GND
6 Hi
7 RTS NC
8 CTS
9 Hi
Pin
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
21
Description
Provide 5V Power
Receive
Transmit
No Connection
Ground
Pull High
Request to Send
Clear to Send
Pull High
Printer (DB9)
Description
Provide 5V Power
Receive
Transmit
No Connection
Ground
Pull High
Request to Send
Clear to Send
Pull High
Signal
+5V
RxD
TxD
NC
GND
Hi
RTS
CTS
Hi