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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