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Oracle VTS 8.2.0 Software User's Guide

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Updated: March 2017
 
 

9-Pin Male DB-9 External Connector

Use these wiring instructions for male 9-pin DB-9 external plugs.

First Connector
Second Connector
Pin 2
Pin 3
Pin 1
Pins 4 and 6
Pin 7
Pin 8
image:9-Pin Male DB-9 Connector Wiring Diagram

The signals and names for the DB-9 connector are as follows.

Pin
Name
Signal
1
DCD
Data Carrier Detect
2
RxD
Receive Data
3
TxD
Transmit Data
4
DTR
Data Terminal Ready
5
SGND
Signal Ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
RI
Ring Indicator

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