R3132 Series Spectrum Analyzer Operation Manual
4.3.5 Data Format
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Figure 4-7 Cable Wiring Diagram
4.3.5 Data Format
Transmission messages between the spectrum analyzer and the controller are in ASCII code character
strings and followed by carriage returns (CR) and line feeds (LF).
Figure 4-8 Data Format
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
9CI: N.C
Controller
side
Spectrum
Analyzer
side
9pin 9pin
2 RxD 3 TxD
3 TxD 2 RxD
5 GND 5 GND
4 DTR
6 DSR
1 DCD
7 RTS
8 CTS
LF CR7 0 +E00000000000 . 3 +
CF?CRLF
Spectrum
Analyzer
side
Controller
side