SATO 412E Manuel D’Utilisation

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Section 5: Interface Specifications
LM Basic 408e/412e Operator’s Manual
Page 5-5
5.7 READY/BUSY
Ready / Busy is the hardware flow control method for the serial interface on the printer. Data 
received cannot be guaranteed, when print data (ESC+"A"~ESC+"Z") is sent from the host, 
under the following conditions:
1) When the printer is Offline
2) When an error has occurred in the printer
Pin Assignments
Interface Signals
  When using Windows Hardware Control:
1) DB-25 P
   DB-25 P
2) DB-25P
   DB-9P
Printer
Host
Printer
Host
FG
1
1
FG
FG
1
SD
2
3
RD
SD
2
2
RD
RD
3
2
SD
RD
3
3
SD
RS
4
5
CS
RS
4
8
CS
CS
5
4
RS
CS
5
7
RS
DR
6
20
ER
DR
6
4
ER
SG
7
7
SG
SG
7
5
SG
ER
20
6
DR
ER
20
6
DR
3) DB-25 P
   DB-25 P
4) DB-25P
   DB-9P
Printer
Host
Printer
Host
FG
1
1
FG
FG
1
SD
2
3
RD
SD
2
2
RD
RD
3
2
SD
RD
3
3
SD
CS
5
20
ER
CS
4
4
ER
RS
4
6
DR
RS
5
6
DR
DR
6
4
RS
DR
6
7
RS
SG
7
7
SG
SG
7
5
SG
ER
20
5
CG
ER
20
6
CS
Pin no.
Signal Type
Direction
Contents
1
FG
-
Frame Ground
2
SD
Output
Send Data
3
RD
Input
Receive Data
4
RS
Output
Request to Send
5
CS
Input
Clear to Send
6
DR
Input
Data Set Ready
7
SG
-
Signal Ground
20
ER
Output
Eqpt Ready (also used for 
handling error status)