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Cabling Information

DB-9 Pin Description

Pin # Signal Description Signal Direction
1 DCD Data Carrier Detect Input
2 RxD Receive Data Input
3 TxD Transmit Data Ouput
4 DTR Data Terminal Ready Output
5 SG Signal Ground Common
6 DSR Data Set Ready Input
7 RTS Request To Send Output
8 CTS Clear To Send Input
9 RI Ring Indicator Input
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