Juniper Archer Reference Manual page 116

Appendix A: Product Specifi cations and Pinouts
3 Transmit Data (TXD) Output
4 Data Terminal Ready (DTR) Output
5 Ground (GND)
6 Data Set Ready (DSR) Input
7 Request To Send (RTS) Output
8 Clear To Send (CTS) Input
9 Ring Indicator (RI) Input
A wiring diagram is shown below.
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