Star Micronics DP8340R ユーザーズマニュアル

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Pin No.

Signal

Direction

Function

Name

1

GND

—

Frame Ground

2

TXD

OUT

This pin carries data from the printer.
(Return channel)

3

RXD

IN

This pin carries data to the printer.

4

RTS

OUT

This is SPACE when the printer power is ON.

5

CTS

IN

This pin is SPACE when the computer is
ready to send data.Th e p r i nt e r  do es  no t
check this pin.

6

DSR

IN

This pin is SPACE when the computer is
ready to send data.T h e   p r i n t e r   d o e s   n o t
check this pin.

7

GND

—

Signal ground.

8

N/C

Unused.

9

TTY TXDR

—

This pin is the return path for data
transmitted from the printer on the 20mA
current loop.

10

TTY TXD

OUT

This pin carries data from the printer on the
20mA current loop.

11

RCH

OUT

This pin is SPACE when the printer is ready
to receive data. This line carries the same
signal as pin 20.

12

N/C

Unused.

13

GND

—

Signal ground.

14

FAULT

OUT

This is MARK when the printer is abnor-
mal. (Refer to Error Condition Alarm Mode
*1.) Or there is a paper error.

15 ~ 16

N/C

Unused.

17

TTY TXDR

—

This pin is the return path for data transmit-
ted from the printer on the 20mA current
loop.

18

TTY RXDR

—

This pin is the return path for data trans-
mitted to the printer on the 20mA current
loop.

19

TTY RXD

IN

This pin carries data to the printer on the
20mA current  loop.

20

DTR

OUT

This printer turns this pin SPACE when it is
ready to receive data.

21 ~ 22

N/C

Unused.

23

TTY RXDR

—

This pin is the return path for data trans-
mitted to the printer on the 20mA current
loop.

24

TTY TXD

OUT

This pin carries data from the printer on the
20mA current loop.

25

TTY RXD

IN

This pin carries data to the printer on the
20mA current loop.