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ICDM-RX/MOD User Manual
Troubleshooting and Technical Support
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The maximum number of repeater hops is four.
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You can use Category 3 or 5 twisted-pair 10BASE-T cables.
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The maximum length of each cable is 100m (328ft).
Note: Category 3 or 5 twisted pair cables look the same as telephone cables but they are not the
same. The network will not work if telephone cables are used to connect the equipment.
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Fast Ethernet 100BASE-TX rules
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The maximum number of repeater hops is two (for a Class II hub). A Class II hub can be connected
directly to one other Class II Fast Ethernet hub. A Class I hub cannot be connected directly to another
Fast Ethernet hub.
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You must use Category 5 twisted-pair 100BASE-TX cables.
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The maximum length of each twisted-pair cable is 100m (328ft).
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The total length of twisted-pair cabling (across directly connected hubs) must not exceed 205m (672ft).
Note: Category 5 twisted pair cables look the same as telephone cables but they are not the same.
The network will not work if telephone cables are used to connect the equipment.
•
IEEE 802.3 specification: A network using repeaters between communicating stations (PCs) is subject to
the "5-4-3" rule of repeater placement on the network:
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Five segments connected on the network.
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Four repeaters.
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Three segments of the 5 segments can have stations connected. The other two segments must be
inter-repeater link segments with no stations connected.
See http://www.optronics.gr/Tutorials/ethernet.htm for more specific information.
Additional information may be found at http://compnetworking.about.com/cs/ethernet1/ or by searching
the web.
8.4. Technical Support
It contains troubleshooting procedures that you should perform before contacting Technical Support since they
will request that you perform, some or all of the procedures before they will be able to help you diagnose your
problem. If you need technical support, use one of the following methods.
Worldwide Headquarters
Pepperl+Fuchs GmbH
68307 Mannheim, Germany
+49 621 766-0
info@de.pepperl-fuchs.com
USA Headquarters
Pepperl+Fuchs, Inc.
Twinsburg, Ohio 44087 - USA
+1 330 425 35555
sales@us.pepperl-fuchs.com
Asia Pacific Headquarters
Pepperl+Fuchs Pte Ltd. Company Registration No.
Singapore 139942
+65 67799091
sales@sg.pepperl-fuchs.com
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Table of Contents
Troubleshooting
