Siemens SIMATIC NET PROFIBUS User Manual

Contents

PROFIBUS Networks SIMATIC NET

6GK1970-5CA20-0AA1 Release 2 05/2000

A.2.4

Checking the Optical Signal Quality with PROFIBUS OLM V3

A-12

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Lightning and Surge Voltage Protection for LAN Cables Between Buildings

B-1

B.1

Why Protect Your Automation System From Overvoltage?

B-2

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B.2

Protecting LAN Cables from Lightning

B-2

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B.2.1

Instructions for Installing Coarse Protection

B-5

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B.2.2

Instructions for Installing Fine Protection

B-6

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B.2.3

General Information on the Lightning Protection Equipment from the Firm of
Dehn & Söhne

B-7

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Installing LAN Cables

C-1

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C.1

LAN Cables in Automation Systems

C-2

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C.2

Electrical Safety

C-3

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C.3

Mechanical Protection of LAN Cables

C-4

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C.4

Electromagnetic Compatibility of LAN Cables

C-7

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C.4.1

Measures to Counter Interference Voltages

C-7

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C.4.2

Installation and Grounding of Inactive Metal Parts

C-8

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C.4.3

Using the Shields of Electrical LAN Cables

C-8

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C.4.4

Equipotential Bonding

C-10

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C.5

Routing Electrical LAN Cables

C-13

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C.5.1

Cable Categories and Clearances

C-13

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C.5.2

Cabling within Closets

C-16

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C.5.3

Cabling within Buildings

C-16

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C.5.4

Cabling outside Buildings

C-17

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C.5.5

Special Noise Suppression Measures

C-18

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C.6

Electromagnetic Compatibility of Fiber-Optic Cables

C-20

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C.7

Installing LAN Cables

C-21

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C.7.1

Instructions for Installing Electrical and Optical LAN cables

C-21

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C.8

Additional Instructions on Installing Fiber-Optic Cables

C-24

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Installation Instructions for SIMATIC NET PROFIBUS Plastic Fiber-Optic with
Simplex Connectors or BFOC Connectors and Pulling Loop for the FO Standard
Cable

D-1

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Installing Network Components in Cubicles

E-1

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E.1

IP Degrees of Protection

E-1

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E.2

SIMATIC NET Components

E-3

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Dimension Drawings

F-1

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F.1

Dimension Drawings of the Bus Connectors

F-2

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F.2

Dimension Drawings of the RS-485 Repeater

F-5

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F.3

Dimension Drawing of the PROFIBUS Terminator

F-6

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F.4

Dimension Drawings of the RS-485 Bus Terminal

F-7

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F.5

Dimension Drawings of the BT12M Bus Terminal

F-8

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F.6

Dimension Drawings of the Optical Bus Terminal OBT

F-9

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