Samsung SRP-270 Series Serial InterfaceRS-232C, Serial Communication InterfaceExample

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Interface Connector

Serial Interface(RS-232C)

Pin No.

Signal name

Direction

Function

 

 

 

 

 

 

 

 

 

 

 

1

 

FG

-

 

 

 

 

Frame Ground

 

 

 

 

 

 

 

 

 

 

 

2

 

TxD

Output

Transmit Data

 

 

 

 

 

 

 

 

 

 

 

3

 

RxD

Input

Receive Data

 

 

 

 

 

 

 

 

 

 

 

6

 

DSR

Input

Data Set Ready

 

 

 

 

 

 

 

 

 

 

 

7

 

SG

-

 

 

 

 

Signal Ground

 

 

 

 

 

 

 

 

 

 

 

20

 

DTR

Output

Data Terminal Ready

 

 

 

 

 

 

 

 

 

 

 

Serial Communication Interface(Example)

Printer

 

 

 

 

 

Host(DTE ex 8251)

SG

 

 

 

 

 

 

 

 

SG

 

 

 

 

 

 

 

 

TXD

 

 

 

 

 

 

 

TXD

 

 

 

 

 

 

 

RSD

 

 

 

 

 

 

 

RSD

 

 

 

 

 

 

 

DSR

 

 

 

 

 

 

 

RTS

 

 

 

 

 

 

 

 

 

 

 

 

 

DTR

 

 

 

 

 

 

 

CTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DSR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTR

 

 

 

 

 

 

 

 

 

 

S.G

 

 

 

 

 

 

S.G

Serial Interface(RS-485)

 

 

Pin No.

 

Signal Name

Direction

Function

 

 

 

 

 

 

 

 

 

 

 

1

 

FGND

-

 

 

 

 

Frame Ground

 

 

 

 

 

 

 

 

 

 

 

2

 

SD2

Output

Send Data

 

 

 

 

 

 

 

 

 

3

 

SD1

Output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

RD2

Input

Receive Data

 

 

 

 

 

 

 

 

 

5

 

RD1

Input

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

SGND

-

 

 

 

 

Signal Ground

 

 

 

 

 

 

 

 

 

 

 

8

 

DR2

Output

Same as DTR(RS-232)

9

 

DR1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

CS2

Input

Same as DSR(RS-232)

11

 

CS1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

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Contents Series Introduction Table of Contents Checking the Contents of the printer box Installing the printerUnpacking Functions Connecting the cables Connecting the AC adapter to the printerConnecting Interface Cable and Drawer Cable to the printer Installing the roll paper Ribbon Cassette InstallationRoll Paper Installation Page Page Page Setting the DIP switches Dip Switch 2 Setting DIP Switch 1 SettingEmulation mode selection Baud rate selectionParallel/USB Interface Specification Hexadecimal Dumping Self test Self-test printing Please press the Feed buttonCharacter Test Completed Code Table 0 PC437 USA, Standard Europe International Character Set USA2 PC850 Multilingual 3 PC860 Portuguese 4 PC 863 Canadian French 5 PC 865 Nordic 19 PC 858 Euro International Character Control Commands List Epson modeCitizen mode CanStar mode Control code Hexadecimal Function Code Connectors Appendix aSerial InterfaceRS-232C Serial Communication InterfaceExampleSerial InterfaceRS-485 GND Drawer Connector USB Interface Pin No Signal Name Assignment Function ColorSpecification Appendix BAppendix C Removing Jammed Paper
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