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READY/BUSY
This communication protocol controls the reception of print data by the control of hard signal only.
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 the printer is in offline state.
2) When an error has occurred in the printer.
Connection diagram
1) DB-9P
This product
CD
1
RD
2
SD
3
ER
4
SG
5
DR
6
RS
7
CS
8
I/O signal
Pin no.
2
RD
3
SD
4
ER
5
SG
6
DR
7
RS
8
CS
Host
1
3
2
6
5
4
8
7
Signal
I/O
name
Input
Output
Output
-
Input
Output
Input
CD
SD
RD
DR
SG
ER
CS
RS
Data transferred from the host to this product
Data transferred from this product to the host
Data device ready
Signal ground
Data set ready
Transmission request
Transmission available
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