Appendix B

Null Modem Cable

Specifications

The DB-9 cable is used for connecting a terminal or terminal emulator to the Managed Switch’s RS-232 port to access the command-line interface.

The table below shows the pin assignments for the DB-9 cable.

Function

Carrier

Receive Data

Transmit Data

Data Terminal Ready

Signal Ground

Data Set Ready

Request To Send

Clear To Send

9 Pin Null Modem Cable

CD 1

DSR 6

DTR 4

RXD 2

TXD 3

GND 5

RTS 7

CTS 8

Reserve 9

Mnemonic Pin

CD 1

RXD 2

TXD 3

DTR 4

GND 5

DSR 6

RTS 7

CTS 8

4

DTR

1

CD

6

DSR

3

TXD

2

RXD

5

GND

8

CTS

7

RTS

9

Reserve

282

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Image 294
ICP DAS USA MSM-6226 user manual Appendix B Null Modem Cable Specifications