R3131 Spectrum Analyzer Operation Manual
9pin 9pin
2 RxD 3 TxD
3 TxD 2 RxD
Spectrum
5 GND 5 GND
Controller
Analyzer
side
side
4 DTR
6 DSR
1 DCD
7 RTS
8 CTS
Pin No.(9pin) Signal name
Contents
1 DCD:Data Carrier Detector
Receive carrier detection
2 RxD: Receive Data Receive data
3
TxD: Transmit Data Transmission data
4
DTR: Data Terminal Ready
Data terminal ready
5
GND: Ground Signal ground
6
DSR: Data set Ready
Data set ready
7 RTS: Request To Send
Request signal for sending
8
CTS: Clear to Send
Clear signal for sending
9 CI: N.0
4.2 RS-232 Remote Control Function
Figure 4-6 Cable Wiring Diagram
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