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3. communication interface – GoDEX EZDT4 User Manual

Page 7

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1-3. Communication Interface

Serial Interface

Serial Default
Setting

:

9600 baud rate、no parity、8 data bits、1 stop bit、XON/XOFF protocol and
RTS/CTS。


RS232 HOUSING (9-pin to 9-pin)

DB9 SOCKET

DB9 PLUG

---

1 1 +5V,max

500mA

RXD

2 2 TXD

TXD

3 3 RXD

DTR

4 4 N/C

GND

5 5 GND

DSR

6 6 RTS

RTS

7 7 CTS

CTS

8 8 RTS

RI

9 9 N/C

PC

PRINTER

NoteThe total current output from serial port can not exceed 500mA.

USB Interface

Connector Type : Type B

PIN NO.

1

2

3

4

FUNCTION VBUS D- D+ GND


Internal Interface

UART1 wafer

Ethernet module

N.C

1 1

N.C

TXD

2 2

RXD

RXD

3 3

TXD

CTS

4 4

RTS

GND

5 5

GND

RTS

6 6

CTS

E_MD

7 7

E_MD

RTS

8 8

CTS

E_RST

9 9

E_RST

+5V

10 10

+5V

GND

11 11

GND

+5V

12 12

+5V




EZ-DT-2/EZ-DT-4 User’s Manual

6

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