Appendix B: Serial Interface

B-1. Pins and Signal Names

Pin No.

Signal Name

Direction

 

 

Function

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

FG

Frame ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

TXD

OUT

 

Transmission data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

RXD

IN

 

Receive data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

RTS

OUT

 

When Memory Switch 4-D = 0: Same as DTR signal

 

 

 

 

 

When Memory Switch 4-D = 1: Always SPACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

N.C.

 

 

Not connected

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

DSR

IN

 

• DIP Switch 2-7 = OFF

 

 

 

 

 

 

 

 

 

STAR Mode

 

 

 

 

 

 

 

 

 

Status of this signal is not checked.

 

 

 

 

 

 

 

 

 

ESC/POS Mode

 

 

 

 

 

 

 

 

 

In DTR/DSR communication mode when Memory Switch4-5 = 0,

 

 

 

 

 

 

indicates whether data receive from host is enabled or disabled.

 

 

 

 

 

 

Space: Receive enabled

 

 

 

 

 

 

 

 

 

Mark: Receive disabled

 

 

 

 

 

 

 

 

 

In DTR/DSR communication mode when Memory Switch 4-5=1,

 

 

 

 

 

 

status of this signal is not checked.

 

 

 

 

 

 

 

 

 

This signal is not checked in the X-ON/X-OFF communication

 

 

 

 

 

 

mode.

 

 

 

 

 

7

SG

 

 

 

 

 

APPENDIX

 

 

Signal ground

 

 

 

 

 

 

 

 

• DIP Switch 2-7 = ON

 

 

 

 

 

 

 

 

 

This signal used for external reset. Printer is reset whenever signal

 

 

 

 

 

 

is in mark state with pulse width of 1mS or more.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8 -19

N.C.

 

 

Not connected

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

DTR

OUT

 

Indicates whether data receive from host is enabled or disabled.

 

 

 

 

 

 

DTR/DSR Communication Mode

 

 

 

 

 

 

 

 

 

Space when receive is enabled.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Printer status

DIP switch 1-2

 

 

 

 

 

 

 

 

0

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1. During the period from when the power is

 

 

 

 

 

 

 

 

 

 

turned on (including resetting using the in-

BUSY

BUSY

 

 

 

 

 

 

 

 

terface) to when the printer is ready to re-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ceive data.

 

 

 

 

 

 

 

 

 

2. During self printing and dot alignment ad-

BUSY

BUSY

 

 

 

 

 

 

 

 

justment.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. During paper feeling using the paper feed

BUSY

 

 

 

 

 

 

 

 

button (ESC/POS mode only).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.

When the printer stops printing due to a

BUSY

 

 

 

 

 

 

 

 

paper end or a paper near end.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.

When an error has occurred.

BUSY

 

 

 

 

 

 

 

6.

When the receive buffer becomes full.

BUSY

BUSY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

– 132 –

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Image 135
Star Micronics SP2000 Series user manual Appendix B Serial Interface, Pins and Signal Names

SP2000 Series specifications

The Star Micronics SP2000 Series represents a powerful solution for businesses seeking reliable and high-quality impact printers. Designed primarily for point-of-sale and ticket printing applications, the SP2000 Series delivers exceptional performance while ensuring durability and ease of use.

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In summary, the Star Micronics SP2000 Series is an excellent choice for businesses seeking fast, versatile, and durable impact printers. With its high-speed printing, compatibility with various media types, user-friendly design, and reliable performance, the SP2000 Series stands out as a top solution in the world of point-of-sale technology. Whether for retail, hospitality, or other service industries, this series offers the features and reliability needed to enhance operational efficiency.