Rgb-spectrum Quadra User's Guide Manuel d'utilisateur télécharger pdf (Page 113)

CONNECTOR TYPES

RS-232 Connector

350-7951 Quadra User’s Guide 105

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RS-232 CONNECTOR

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

Association Standard RS-232-C published in August 1969. The Quadra can be

explicitly controlled with ASCII Command Set instructions sent via the RS-232

serial port from either a computer or an ASCII terminal. In Chapter 4, refer to

the “Command Set List

” section for details on all commands.

CONNECTOR TYPE

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AND PINOUTS

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 C-6.

9-pin D-Sub RS-232 Female Connector

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

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NULL MODEM

You may need to connect Quadra’s serial port to a computer configured as Data

Communications Equipment (DCE). This is accomplished using a null modem.

The net effect of a null modem is to reverse the Transmitted Data and

Received Data connections within the cable. Also, the Request to Send (RTS)

and Clear to Send (CTS) connections are reversed. This may be done by using

a special “null modem” cable, or by inserting a small “null modem” box or

cable in series with a regular “straight through” cable.

Table C-6.

RS-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)

6 DSR Data Set Ready

7 CTS Clear to Send

8 RTS Request to Send

9 (not connected)

Holes

1 2 ... 108 109 110 111 112 113 114 115 116 117 118 ... 131 132

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Rgb-spectrum Quadra User's Guide Manuel d'utilisateur Page 113

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