Section 3: Interface Specifications
Page 3-4
TG3 Series Service Manual
3.2 RS232C HIGH SPEED SERIAL INTERFACE (Cont’d)
3.2.3 Ready/Busy
Ready / Busy is the hardware flow control method for the serial interface on the printer. Single item buffer and
multi buffer can be toggled in the Interface Mode of the printer.
When the print data (STX ESC+”A”~ ESC+”Z” ETX) is sent from the host in the conditions below, received
data may be incorrect.
1) When the printer is Offline
2) When an error has occurred in the printer
Pin Assignments
Interface Signals
Pin no.
Signal Type
Direction
Description
1
FG
-
Frame ground
2
SD
Output
Data from the printer to the host computer.
3
RD
Input
Data from the host computer to the printer.
4
RS
Output
It goes “Low” when an error has occurred in the printer
5
CS
Input
It must be “High.”
6
DR
Input
It must be “High.”
7
SG
-
Signal ground
20
ER
Output
It goes “High” when the printer is ready to receive data.
It goes “Low” when an error has occurred in the printer
or when the printer is in offline state.
1) Host with DB-25 P terminal
2) Host with DB-9P terminal
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
When using Windows Hardware Control:
3) Host with DB-25 P terminal
4) Host with DB-9P terminal
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
RS 4
4 DR
RS 4
6 DR
CS 5
6 ER
DR 6
4 RS
DR 6
7 RS
SG 7
7 SG
SG 7
5 SG
ER 20
5 CG
ER 20
8 CS
Summary of Contents for TG308
Page 1: ...Service Manual For printer model TG3 Series www satoamerica com PN 9001226 A...
Page 6: ...Table of Contents Page iv TG3 Series Service Manual This page is intentionally left blank...
Page 7: ...Section 1 Introduction TG3 Series Service Manual Page 1 1 INTRODUCTION...
Page 251: ...Section 9 Sato Group of Companies TG3 Series Service Manual Page 9 1 SATO GROUP OF COMPANIES...
