Com1 serial port, Com2 serial port – NEXCOM NISE 104 User Manual

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12

NISE 104 User Manual

Chapter 2: Jumpers and Connectors

COM1 Serial Port

Connector type: DB-9 port
Connector location: COM1

Pin

Definition

Pin

Definition

1

DCD1

2

RXD1

3

TXD1

4

DTR1

5

GND

6

DSR1

7

RTS1

8

CTS1

9

RI1

COM2 Serial Port

Connector type: DB-9 port
Connector location: COM2

RS232

RS485

RS422

Pin

Definition

Pin

Definition

Pin

Definition

1

SP2_DCD

1

SP2_DATA-

1

SP2_TX-

2

SP2_RXD

2

SP2_DATA+

2

SP2_TX+

3

SP2_TXD

3

NC

3

SP2_RX+

4

SP2_DTR

4

NC

4

SP2_RX-

5

GND

5

GND

5

GND

6

SP2_DSR

6

NC

6

SP2_RTS-

7

SP2_RTS

7

NC

7

SP2_RTS+

8

SP2_CTS

8

NC

8

SP2_CTS+

9

SP2_RI

9

NC

9

SP2_CTS-