Siemens EK 720 Series Betriebsanleitung PDF herunterladen (Seite 19)

Connection

5.1 Lightning protection, power supply and grounding

SCALANCE W760/W720

Operating Instructions, 03/2015, C79000-G8976-C322-04

Grounding

WARNING

Danger to life from overvoltage, fire hazard

When using outdoor antennas, the shared or even grounded pin of the circuit must be

connected to the shield of the coaxial cable and with all touchable conductive parts and

circuits. Otherwise, in the event of a fault there may be illegally high voltages on touchable

parts.

NOTICE

Damage to the device due to potential differences

To fully eliminate the influence of electromagnetic interference, the device must be

grounded. There must be no potential difference between the following parts, otherwise the

device or other connected device could be severely damaged:

• Grounding pin of the SCALANCE W700 and the ground potential of the antenna.

• Grounding pin of the SCALANCE W700 and the ground potential of a device connected

over Ethernet.

• Grounding pin of the SCALANCE W700 and the shield contact of the connected

Ethernet cable.

Connect both grounds to the same foundation earth or use an equipotential bonding cable.

WARNING

EXPLOSION HAZARD

SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION

2 OR ZONE 2.

WARNING

EXPLOSION HAZARD

DO NOT OPEN WHEN ENERGIZED.

General notes on use according to ATEX and IECEx

WARNING

EXPLOSION HAZARD

DO NOT CONNECT OR DISCONNECT EQUIPMENT WHEN A FLAMMABLE OR

COMBUSTIBLE ATMOSPHERE IS PRESENT.

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Siemens EK 720 Series Betriebsanleitung Seite 19