4
Cabling the AC 800F
4-50
4.2.10.7 Max. permissible network length with 10BaseFL cable
The explanations in this section give only a short overview.
Observe the detailed information about how to design fiber optic
cable networks given in
Hirschmann GmbH & Co, Esslingen: Ethernet Manual,
ordering code 943 320-011
The principle of Ethernet data transmission with collision detection assumes a
maximum propagation delay on the system bus between two nodes. Exclusive use of
standardized 10Base2 and 10Base5 Ethernet components with max. cable lengths
and a maximum of 4 repeaters ensures that the specified delay is achieved. For
details see Section 4.2.12.
When using 10BaseFL components and network concentrators, the maximum
network length is determined in another way. In this case the permissible length
results from adding the propagation delays of the cables and electronic components.
The following rule is valid:
Maximum network length
≤≤≤≤
4800 m
Consider the longest distance in the network. A propagation delay equivalent in
meters is assumed for the electronic components in the signal path. Refer to the data
sheets of the network components for the respective propagation delay equivalents
needed for calculation.
The following table gives the propagation delay equivalents for various components.
They were used for calculating the example below.
Network concentrator modules
Delay equivalent
AUI network concentrator module
165 m
10Base2 network concentrator module
110 m
10Base5 network concentrator module
10 m
10BaseFL network concentrator module
30 m
Содержание AC 800F
Страница 1: ... PROCESS AUTOMATION Freelance 2019 Mounting and Installation Instructions AC 800F Controller ...
Страница 2: ......
Страница 66: ...3 Mounting the AC 800F 3 38 ...
Страница 168: ...4 Cabling the AC 800F 4 102 ...
Страница 290: ...7 Functional Description of the Fieldbus Modules 7 36 ...
Страница 317: ...10 Approvals certificates 10 1 10 Approvals certificates 10 1 ISO 9001 Fig 10 1 ISO 9001 ...
Страница 318: ...10 Approvals certificates 10 2 Fig 10 2 ISO 9001 ...
Страница 319: ...10 Approvals certificates 10 3 Fig 10 3 ISO 9001 ...
Страница 320: ...10 Approvals certificates 10 4 Fig 10 4 ISO 9001 ...
Страница 321: ...10 Approvals certificates 10 5 10 2 ISO 9000 Fig 10 5 ISO 9000 ...
Страница 322: ...10 Approvals certificates 10 6 Fig 10 6 ISO 9000 ...
Страница 323: ...10 Approvals certificates 10 7 10 3 CE Fig 10 7 CE certificate page 1 ...
Страница 324: ...10 Approvals certificates 10 8 Fig 10 8 CE certificate page 2 ...
Страница 325: ...10 Approvals certificates 10 9 Fig 10 9 CE certificate page 3 ...
Страница 326: ...10 Approvals certificates 10 10 Fig 10 10CE certificate supplement ...
Страница 327: ...10 Approvals certificates 10 11 10 4 CSA Fig 10 11 CSA certificate page 1 ...
Страница 328: ...10 Approvals certificates 10 12 Fig 10 12 CSA certificate page 2 ...
Страница 329: ...10 Approvals certificates 10 13 Fig 10 13 CSA certificate page 3 ...
Страница 330: ...10 Approvals certificates 10 14 Fig 10 14 CSA certificate page 4 ...
Страница 331: ...10 Approvals certificates 10 15 10 5 UL Fig 10 15 UL certificate ...
Страница 332: ...10 Approvals certificates 10 16 Fig 10 16 UL certificate page 2 ...
Страница 333: ...10 Approvals certificates 10 17 Fig 10 17 UL certificate page 3 ...
Страница 334: ...10 Approvals certificates 10 18 Fig 10 18 UL certificate page 4 ...
Страница 335: ...10 Approvals certificates 10 19 10 6 GUS certificate Fig 10 19 GUS certificate ...
Страница 369: ...13 Glossary 13 18 Component of the Freelance 2000 System ...
Страница 378: ......