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AR-B8170 User Manual

12

2.3 Connector and Jumper Setting Table

2.3.2 LED1/LED2 2.3.3 JP1

FUNCTION

LED1

POWER LED

LED2

IDE/SD LED

JUMPER FUNCTION

1-2 (default)

RS232

3-4

RS422

5-6

RS485

2.3.4 JP3 2.3.5 CN7

JUMPER FUNCTION

1-2

RS422/485

TERMINATION

ENABLE

PIN

FUNCTION

1

485D+ or 422TX+

2

485D- or 422TX-

3

422RX+

4

422RX-

2.3.6 COM2 2.3.7 JP2

PIN

FUNCTION PIN

FUNCTION

1

DCD

2

DSR

3

RXD

4

RTS

5

TXD

6

CTS

7

DTR

8

RI

9

GND

10

X

JUMPER FUNCTION

1-2(default)

NORMAL

2-3

Clear CMOS

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 36 37

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