Siemens EK 746 Series Provozní pokyny stáhnout pdf (Strana 19)

Mounting

SCALANCE W788-xPRO / W74x-1PRO/RR

A5E02280448-02, Release 11/2008

Mounting

Securing the housing

Grounding terminal

WARNING

To operate the SCALANCE W788 safely, the housing must make contact with a

chassis ground cable. Do not use the SCALANCE W788 without a ground cable

connected.

The ground cable can be connected to one of the securing screws. To allow this,

several of the screw contact surfaces in the housing do not have a powder coating.

You will find these contact surfaces on the right-hand side of the housing (when

looking at the front of the housing).

Wall mounting or standard rail

Note

Installation location

There are no restrictions regarding the installation location for the device.

Antennas, in particular directional antennas, must be mounted in keeping with their

characteristics (refer to the technical specifications of the antenna --> Radiation

pattern diagrams).

There are two ways of securing the housing:

● Wall mounting

Use the holes in the housing to screw the device to the wall or on a horizontal

surface.

● Standard rail mounting

Mount the SCALANCE W788-xPRO/RR or W74x-1PRO/RR on a 90 mm long,

vertically mounted section of standard rail (S7-300). In this case, the standard rail

serves as an adapter between the wall and SCALANCE W788-xPRO/RR or

W74x-1PRO/RR. If you want to mount the SCALANCE W788-xPRO/RR or W74x-

1PRO/RR along with a PS791-1PRO, you will require a 150 mm long standard

rail.

Make sure that there is suitable strain relief for the connecting cable.

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Siemens EK 746 Series Provozní pokyny Strana 19