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2. Hardware Implementation of the LUFP7 Gateway
To connect stations to the Profibus-DP network more easily, several accessories are offered in the Schneider
Electric catalogue:
– Single twisted pair type A Profibus-DP cable
(100 m long): TSX PB SCA100. If you use a
different cable, please check that its electric
characteristics are as close as possible to those
of type A cables (see chapter 7.2
Communication Characteristics, page 86).
– Line connector: 490 NAD 911 04. The SUD-D
9-point male plug on that connector should not
be connected to a station located at the
segment end, as the connector has no line
termination. This passive box contains a printed
circuit fitted with one or two terminal boxes with
screws for connecting one incoming Profibus-
DP cable and one outgoing Profibus-DP cable.
– End of line connector: 490 NAD 911 03. The
SUB-D 9-point male plug on that connector
must be imperatively connected to a station
located at segment end, since the connector
has a line termination. This passive box
contains a printed circuit fitted with one terminal
box with screws for connecting one incoming
Profibus-DP cable.
490 NAD 911 04 (or 03) connector
d
e
c
A
B
A
B
Red
Green
Legend:
c Incoming A cable.
d Outgoing A cable (absent in the case of the
490 NAD 911 03 connector).
e Cable collar; the cable sheath must be uninsulated,
at the most, in the middle of the collar.