VXI TC4XYY manual 10/100 LAN Cable, COM Port Serial Port Cables

VXL Instruments Ltd. Itona TC4XYY Hardware User’s Guide

Cables

10/100 LAN Cable

Cross Connection - (Without Hub)

RJ45

Pin

TXD+ 1

TXD- 2

RXD+ 3

RXD- 6

RJ45

Pin

3RXD+

6RXD-

1TXD+

2TXD-

Straight Connection - (With Hub)

RJ45

Pin

TXD+ 1

TXD- 2

RXD+ 3

RXD- 6

RJ45

Pin

1TXD+

2TXD-

3RXD+

6 RXD-

COM Port (Serial Port) Cables

Serial devices like modems and printers use 25 pin D-type connectors for RS232 connections. In order to connect an RS232 device with a 25-pin connector, 9-pin connector signals must be converted to 25- pin connector signals as shown in the following diagram.

9-pin to 25-pin Cross Connection

9Pin

Connector

(Thin Client)

TXD 3

RXD 2

RTS 7

CTS 8

DSR 6

SGND 5

DCD 1

DTR 4

25Pin

Connector

3	RXD
2	TXD
5	CTS
4	RTS

6DSR

7SGND

8DCD

20DTR

Connectors and Cables 16