Installation Troubleshooting - IMC Networks iMcV-Gigabit Operation Manual

Installation Troubleshooting

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During installation, first test the fiber and twisted pair connections with all
troubleshooting features disabled, then enable these features, if desired, just
before final installation. This will reduce the features' interference with
testing.
•
When working with units where the features cannot be disabled, you must
establish BOTH your twisted pair and fiber connections before the link
LEDs will light.
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When connecting the fiber interface of an iMcV-Gigabit module (-00) to the
fiber interface of a Gigabit switch (with fixed configuration or modular
design, GBIC/SFP), you may experience difficulty establishing a link. Please
check the following:
Solution 1–Within the switch configuration (either via SNMP or a CLI),
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ensure that the setting for the fiber port in use is set to 1000 Mbps,
Full-Duplex. Manually setting the switch port will result in normal
operation and a link will be established. Also, ensure auto-negotiation
is switched OFF.
Solutions 2–Within the switch configuration, ensure that IEEE 802.3x
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Flow Control is disabled for the Gigabit port in use.
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If using a high powered device (which is designed for long distance
installations) for a short distance installation, the fiber transmitters may
overdrive the receivers and cause data loss. If this is the case, you may
need to add an optical attenuator to your connection.
For fiber specifications, visit the IMC Networks Web site at
www.imcnetworks.com/adocs/fcs.asp
information.
or contact IMC Networks for more
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