Figure 3 Model 32939 power supply
Connect the male LEMO-6 plug on the power supply adapter, to the RS-232 connector on the right
side of the instrument. The female LEMO-6 plug can then be used to connect to your PC using the
standard RS-232 cable supplied with the instrument.
Plug the transformer into your mains power supply using the cable supplied.
Note: If the external power supply is not clean, this may result in unstable measurements.
4.6.2 Instrument - PC connection
An RS-232 cable is supplied with the instrument, with a 6-pin LEMO plug on one end and a 9-pin D-
Type plug on the other.
Connection
Note: If you use an adapter for the connection to the PC, make sure it is designed for this purpose and, thus, has
all nine pins accessible. Some 25-to-9 pin adapters are supplied for specific use, such as a mouse, and these may
have only certain pins available.
10 English
LEMO-6 Pin
Description
Pin 1
Transmitted data (TXD)
Pin 2
Received data (RXD)
Pin 3
CTS
Pin 4
RTS
Pin 5
Not used
Pin 6
Ground
Pin 1
Not used
Pin 2
RS-232 Transmitted Data (TXD)
Pin 3
RS-232 Received Data (RXD)
Pin 4
Not used
Pin 5
Ground
Pin 6
Not used
Pin 7
Request to send RTS
Pin 8
Clear to send RTS
Pin 9
Not used