R3132 Series Spectrum Analyzer Operation Manual
4.3.5 Data Format
4-65
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
9
CI:
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 CR 7
0
+
E 0 0 0 0
0 0 0 0
0 0
0
.
3
+
C
F
?
CR LF
Spectrum
Analyzer
side
Controller
side