Com3 serial port, Com4 serial port – NEXCOM NISE 104 User Manual

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13

NISE 104 User Manual

Chapter 2: Jumpers and Connectors

COM3 Serial Port

Connector type: DB-9 port
Connector location: COM3

RS232

RS485

RS422

Pin

Definition

Pin

Definition

Pin

Definition

1

SP3_DCD

1

SP3_DATA-

1

SP3_TX-

2

SP3_RXD

2

SP3_DATA+

2

SP3_TX+

3

SP3_TXD

3

NC

3

SP3_RX+

4

SP3_DTR

4

NC

4

SP3_RX-

5

GND

5

GND

5

GND

6

SP3_DSR

6

NC

6

SP3_RTS-

7

SP3_RTS

7

NC

7

SP3_RTS+

8

SP3_CTS

8

NC

8

SP3_CTS+

9

SP3_RI

9

NC

9

SP3_CTS-

COM4 Serial Port

Connector type: DB-9 port
Connector location: COM4

Pin

Definition

Pin

Definition

1

DCD4

2

RXD4

3

TXD4

4

DTR4

5

GND

6

DSR4

7

RTS4

8

CTS4

9

RI4