RGB Spectrum DGy 201x Guida Utente Scaricare il pdf (Pagina 140)

TECHNICAL SPECIFICATIONS

Connectors and Pinouts

350-9047 v3.0.1 DGy Model 201x User’s Guide 130

. . . . .

NULL MODEM

Connecting the DGy 201x’s serial port to a computer configured as Data

Communications Equipment (DCE) is done 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.

6 DSR Data Set Ready

7 CTS Clear to Send

8 RTS Request to Send

9 (not connected)

Table A-12 RS-232 Serial Connector Pinouts (Continued)

Pin Circuit Description

1 2 ... 135 136 137 138 139 140 141 142 143 144 145 ... 157 158

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RGB Spectrum DGy 201x Guida Utente Pagina 140