Siemens EK 746 Series Instructions d'exploitation télécharger pdf (Page 37)

Connecting up

SCALANCE W788-xPRO / W74x-1PRO/RR

A5E02280448-02, Release 11/2008

Pinning of the M12 male connector

Power supply over the M12 connector

The M12 male connector on the front of the SCALANCE W7xx has the following

pinning:

Pin Function

Pin 1 24 V DC

Pin 2 --

Pin 3 Ground

Pin 4 --

Lightning protection, power supply, and grounding

Notes on lightning protection

WARNING

Danger due to lightning strikes

Antennas installed outdoors must be within the area covered by a

lightning protection system. Make sure that all conducting systems

entering from outdoors can be protected by a lightning protection

potential equalization system.

When implementing your lightning protection concept, make sure you

adhere to the VDE 0182 or IEC 62305 standard.

A suitable lightning conductor is available in the range of accessories of SIMATIC

NET Industrial WLAN:

Lightning protector LP798-1N (order no. 6GK5798-2LP00-2AA6)

WARNING

Danger due to lightning strikes

Installing this lightning protector between an antenna and a SCALANCE

W-700 is not adequate protection against a lightning strike. The LP798-

1N lightening protector only works within the framework of a

comprehensive lightning protection concept. If you have questions, ask a

qualified specialist company.

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Siemens EK 746 Series Instructions d'exploitation Page 37