SATO D512, D508 service manual 1 RS-232C Interface Signals, Pin Direction Signal Definition

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SECTION 5: INTERFACE SPECIFICATIONS

5.4.1 RS-232C INTERFACE SIGNALS

Pin

Direction

Signal Definition

1

Reference

FG (Frame Ground)

 

 

 

2

To Host

TD (Transmit Data) -Data from the printer to the host computer. Sends X-On/X-Off

 

 

characters or status data (Bi-Directional protocols).

 

 

 

3

To Printer

RD (Receive Data) -Data to the printer from the host computer.

 

 

 

4

To Host

RTS (Request to Send) -Used with Ready/Busy flow control to indicate an error

 

 

condition. RTS is high and remains high unless the print head is open (in this case,

 

 

RTS would return to the high state after the print head is closed and the printer is

 

 

placed back on-line) or an error condition occurs during printing (e.g. Time Out

 

 

error, label out).

 

 

 

5

To Printer

CTS (Clear to Send) -When this line is high, the printer assumes that data is ready

 

 

to be transmitted. The printer will not receive data when this line is low. If this line is

 

 

not being used, it should be tied high (to pin 4).

 

 

 

6

To Printer

DSR (Data Set Ready) -When this line is high, the printer will be ready to receive

 

 

data. This line must be high before data is transmitted. If this line is not being used,

 

 

it should be tied high (to pin 20).

7

Reference

SG (Signal Ground)

 

 

 

20

To Host

DTR (Data Terminal Ready) -This signal applies to Ready/Busy flow control. The

 

 

printer is ready to receive data when this pin is high. It goes low when the printer is

 

 

off-line, either manually or due to an error condition, and while printing in the Sin-

 

 

gle Job Buffer mode. It will also go low when the data in the buffer reaches the Buf-

 

 

fer Near Full level.

 

 

 

Cable Requirements

DB9

DB2

HOST INTERCONNECTION

 

PRINTER

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1

FG

 

 

1

FG (Frame Ground)

 

 

 

 

 

 

 

 

 

2

3

RD

 

2

TD (Transmit Data)

 

 

 

 

 

 

 

 

 

3

2

TD

 

 

3

RD (Receive Data)

 

 

 

 

 

 

 

 

 

8

5

CTS

 

4

RTS (Request to Send)

 

 

 

 

 

 

 

 

 

7

4

RTS

 

 

5

CTS (Clear to Send)

 

 

 

 

 

 

 

 

 

4

20

DTR

 

 

6

DSR (Data Set Ready)

 

 

 

 

 

 

 

 

 

6

6

DSR*

 

20

DTR (Data Terminal Ready)

 

 

 

 

 

 

 

 

 

5

7

SG

 

 

7

SG (Signal Ground)

 

*This connection at the host side of the interface would depend upon the pin that is being used as the Ready/Busy signal by the driving software. Typically, on a PC, it would be either CTS (pin 5) or DSR (pin 6) on a DB-25 connector.

Page 5-6

SATO D508/D512 Operator Manual

Image 48
Contents OperatorSvice Manual Sato America, Inc Table of Contents Troubleshooting Sato ContactsSato Group of companies Overview General Printer Specifications IntroductionGeneral Printer Specifications AttributeGeneral Specifications CONT’D MediaAttributes Barcodes Optional Accessories Introduction Sato D508/D512 Operator Manual Installation Printer Placement Tips Electrical PrecautionsGeneral Precautions Unpacking Printer Part Names Setting UP the Printer Follow these steps to set up your printerLoading Media Fanfold media Label Sensing Overview of the fanfold-paper loading pathThis page is left blank intentionally Operating Panel Rear Panel Configuration Panel DIP Switch SettingsDIP Switch Settings CONT’D Switch 4 UnusedSwitch 7 Data Dump Switch 8 Unused Error Codes Mode Length of Offset mm Print head resolution OffsetsPotentiometer Adjustments Pitch OffsetOriginal First Line Print Position Moved with Leading Edge Positive + OffsetPotentiometer Adjustments CONT’D Print DarknessData Dump Diagnostic Label Printing Test Labels Printing FACTORY/SERVICE Test Prints Configuration and Operation Sato D508/D512 Operator Manual Adjusting the Print Quality IntroductionCleaning the Print HEAD, Platen and Rollers Cleaning the Print HEAD, Platen and Rollers CONT’D RELEASING/REPLACING the Print Head Cleaning the Sensor This page is left blank intentionally Interface Specifications Interface TypesReceive Buffer Single Job BufferReceive Buffer CONT’D Multi Job BufferPIN Signal Direction IEEE1284 Parallel InterfaceGeneral Specifications RS-232C Interface1 RS-232C Interface Signals Pin Direction Signal DefinitionREADY/BUSY Flow Control ON/X-OFF Flow ControlUniversal Serial BUS Interface Local Area Network InterfaceWireless LAN Interface 802.11 B/G SpecificationsSwitch Setting LED Indicator Status Software SpecificationsInterface Specifications Initial Checklist Checking the IEEE1284 Parallel InterfaceObservations Using the IEEE1284 Parallel Interface CONT’D Checking Using the Parallel Interface CONT’D ObserationsChecking the RS232C Serial Interface Error Signals LED Indicators Buzzer Error Condition Corrective ActionChecking the 802.11G Wireless Interface Sato Contacts Sato Group of Companies Asia Pacific & Oceania Region