TE C H N I C A L SP E C I F I C A T I O N

.S

 

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Connectors and Pinouts

 

. . .

 

C R O S S O V E R C A B L E S

 

To connect directly from a PC (such as a laptop) to the DGy 201x

 

without connecting to the network, an Ethernet crossover cable must be

 

used. Crossover cables are available commercially.

 

In a crossover cable, one end of the cable is wired as a straight through

 

cable, using the pin assignments shown in Table A-11. At the other end

 

of the cable, the TX and RX interconnections are exchanged (crossed

 

over).

 

Ethernet uses balanced differential signals on twisted pairs of

 

conductors. It is important to use wires from the same pair for each pair

 

of signals. The standard pairs are shown in Table A-11. Note that one

 

wire of the pair has a solid color. The other wire (of the pair) is white with

 

a stripe of the same color as the other wire (e.g., Orange and

 

White/Orange).

. . . . . . . . .

The RS-232 port is configured according to the Electronic Industries

RS-232 CONNECTOR

 

Association Standard RS-232-C published in August 1969. The DGy

 

201x can be explicitly controlled with ASCII Command Set instructions

 

sent via the RS-232 serial port from either a computer or an ASCII

 

terminal. Refer to Chapter 6, for details on all commands.

 

C O N N E C T O R T Y P E A N D P I N O U T S

 

Physically, the RS-232 port is a 9-pin, D-Sub female connector. The pins

 

for the RS-232 connector are numbered from top to bottom, right to left.

 

Looking at the connector, pin #1 is located in the upper right corner, and

 

pin #9 is in the lower left corner.

Figure A-3RS-232 Female Connector

The 9-pin D-Sub connector has the following signals:

Table A-12RS-232 Serial Connector Pinouts

Pin

Circuit

Description

1

CD

Carrier Detect

 

 

 

2

TD

Transmit Data

 

 

 

3

RD

Received Data

 

 

 

4

 

(not connected)

 

 

 

5

AB

Signal Ground (common return)

 

 

 

350-9047 v3.0.1

DGy Model 201x User’s Guide

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Page 139
Image 139
RGB Spectrum DGy 201x manual Figure A-3RS-232 Female Connector, Table A-12RS-232 Serial Connector Pinouts