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XON/XOFF
This communication protocol communicates with the host to see if this product is ready to receive
data by sending "XON" (HEX 11H) or "XOFF" (HEX 13H) codes to SD line. Single item receive and
multiple buffer can be switched in the interface mode of this product.
When the print data (STX <A> ~ <Z> ETX) has been sent from the host in the conditions below,
received data may not be accurate:
1) When this product is in offline state.
2) When an error has occurred in this product.
Connection diagram
1) DB-9P
This product
RD
2
SD
3
SG
5
IMPORTANT: Depending on the host used, it may need to loop CS and RS (constantly maintain at "High" level) on the host
side. For more details, refer to your host computer documentation.
I/O signal
Pin no.
2
RD
3
SD
5
SG
Host
3
2
5
Signal
I/O
name
Input
Output
-
SD
RD
SG
Data transferred from the host to this product
Data transferred from this product to the host
Signal ground
457
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