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Chapter 2. Installation
Grounding
For proper operation, always connect the GCG001 ground terminal (see Figure 9) to earth
ground. The panel to which the GCG001 module is mounted, or the RX3i Universal Backplane
to which it is mounted, must have a safety ground connection to protective earth. This ground
wire must be at least 1.5 mm
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•
•
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PROFINET Connection
Attach the PROFINET via one or both of the RJ-45 connectors provided (Port 1 & Port 2).
Various configurations are possible. Refer to the manual for the PROFINET controller used in
the application (GFK-2571 for the RX3i PROFINET Controller).
Genius Bus Connection
The GCG module is equipped with one active six-terminal Genius Serial Bus connector.
SHLD
OUT
Figure 10: Daisy Chain Genius Bus Wiring
Two terminals each are provided on a removable terminal block for Serial 1, Serial 2, and
Shield connections. The figure (above left) shows the Genius connection continuing through
the connector block (daisy chain).
Whenever the Genius bus is terminated at the GCG001, a bus termination resistor should
connect Serial 1 to Serial 2, with SHLD IN unterminated, (as shown above right). The value of
the termination resistor must match the impedance of the Genius Bus cable.
Note that whenever the GCG001 Genius terminal blocks are removed from the faceplate, the
continuity of the Genius Bus is disrupted.
22 Public
PACSystems RX3i Genius Communications Gateway User Manual
(16 AWG).
2
Connect the frame ground connection on the power plug to protective earth.
Terminate all ground wires at the same grounding point.
Make all ground wires as short as possible.
Where the grounding terminal contacts a painted enclosure panel, scrape the paint
away down to clean, bare metal to ensure good contact.
COM
SER 1
SER 2
SHLD
IN
GENIUS
Bus
COM
termination
resistor
SHLD
OUT
GENIUS
Figure 11: Genius Bus Wiring for Bus Termination
SER 1
SER 2
SHLD
IN
GFK-2892B
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