SF-110B EN -63
Pin No.
Signal
Direction
Description
1
NC
No connection
2
RXD
Input
Receive data
3
TXD
Output
Transmit data
4
DTR
Output
Data terminal ready (Connect to pin7
internal)
5
SG
Signal ground
6
DSR
Input
Data set ready
7
RTS
Output
Request to send (Connect to pin4 internal)
8
CTS
Input
Clear to send
9
NC
No connection
Handshake:
NONE
The printer and the balance can communicate at any time without
flow control.
XON/XOFF*
When the device receives the <XOFF> control character, it stops
sending data to another device until it receives the <XON> control
character.
DTR/CTS
When the device is ready to receive data, the DTR pin outputs a
logic low level (RS232 positive level) to notify another device;
otherwise, when the device cannot receive data, the DTR pin
outputs a logic high level (RS232 negative level).
nDTR/CTS
Similar to DTR / CTS, but the action level is reversed.
Notes:
XON control character: 0x11 (hexadecimal format).
XOFF control character: 0x13 (hexadecimal format).
