B&K Precision 1747 - Manual - Manual (Page 19)

17
5 Remote Operation
The power supply can be connected to the RS232 interface using the 9-pin (DB-9)
serial connector on the rear panel. The 1747 uses a null modem RS232 cable. The
cable pin diagram for the DB-9 connector is shown in the picture below:
2
3
5
RX
TX
GND
DB-9
connector
Instrument
2
3
5
RX
TX
GND
PC
DB-9
connector
Figure 10 - RS232 Cable Pin Diagram
For all communications over the RS232 interface, the power supply uses Xon/Xoff
protocol.
NOTE: If using HyperTerminal, make sure you properly configure the “ASCII Setup”. In
“ASCII Setup”, do not append line feeds to “ASCII Sending”. “Echo typed characters
locally” can be checked, but “Send line ends with line feeds” should be left
unchecked. In “ASCII Receiving”, “Append line feeds to incoming line ends” can also
be checked.