Black Box IC050C Manual de Instruções descarregar pdf (Página 25)

Page 25

RS-232 Simple Serial Mode

RS-232 is used extensively for communications between computers and peripheral devices such

as the mouse, keyboard and etc. Another example is the use of the RS-232 port on a computer

to communicate with the kV meter using the Smartcoupler. The kV RSX, in RS-232 mode,

provides a straightforward, isolated, connection between the kV Meter and the host device. The

permanent connection of the kV Meter to a personal computer, for continuous data collection, is

an example.

The most convenient way to connect the kV RSX to a computer is to connect the kV RSX DB-9

communications cable to the computer's RS-232 port through a 9 pin null modem cable. It is

important to select a null modem cable that is shielded and that the end device (computer)

provide a path from this shield to ground. The shell of the kV RSX DB-9 connector is connected

to the shield which surrounds the wire in this cable. The RS-232 communications distance is

limited to 50 feet.

Figure 17 RS-232 Connections for the DB-9 Cable.

Figure 18 RS-232 Connections for the RJ-11 Cable.

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Black Box IC050C Manual de Instruções Página 25