Digital Communication Interface - Fluke 9118A User Manual

9118A
Users Manual

Digital Communication Interface

There is an RS-232C and USB interface on the rear panel
of the Product. See Figure 5. To prevent noise on the
signal wires, use a shielded low-resistance cable between
the Product and PC.
Figure 23 shows the cable connections that connects the
PC to the Product. The connections shown in the figure
are for a DB 9-pin connector and DB 25-pin connector on
the PC.
36
Instrument
Connector
(DB 9-Pin)
1 NC
2 RxD
3 TxD
4 ND
5 GND
6 NC
7 RTS
8 CTS
9 NC
Instrument
Connector
(DB 9-Pin)
1 NC
2 RxD
3 TxD
4 ND
5 GND
6 NC
7 RTS
8 CTS
9 NC
Figure 23. RS-232 Cable Connections
To use the USB interface for remote operation, you must
install a driver on the PC. The driver is found on the 9118A
CD-ROM.
To get an up-to-date USB driver, go to
http://www.ftdichip.com/Drivers/VCP.thm.
Computer (DTE)
Connector
(DB 9-Pin)
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 NC
Computer (DTE)
Connector
(DB 25-Pin)
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 NC
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