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(2) Individual PV system with modem for remote inquiry
RS 485+
RS 485+
RS 485–
RS 485–
GND_G
TX
RX
GND_G
TX2
RX2
Green
Yellow
Brown
Connection to modem via RS 232
When connecting an individual solar inverter,
the remote modem is connected directly to
the RS 232 signal.
Stripped length: 11 mm
Jumper JP400: open
(see page 121)
116
INVERTER
(1)
PV
PC
MODEM
MODEM
RS 232
RS 232
(2) To install the remote inquiry of an indi-
vidual solar inverter, the RS 232 signal can
be routed directly from the solar inverter
to the remote modem.
Cable type B is used for this purpose. For
the RS 232 connection between solar inver-
ter and modem, a cable length of 50 m
should not be exceeded.