Troubleshooting
General
∙Ensure the module is securely seated in the chassis. The PWR LED on the module should be on solid.
∙Ensure all cabling is of the correct type and is in good operating condition.
∙Ensure both devices on either end of the fiber are compatible. If using a simplex fiber connection, ensure that you have both an Upstream (U) and Downstream (D) Media Converters.
∙For
No connectivity
If unable to get full connectivity with all DIP switches in the UP position, these methods are recommended for troubleshooting.
Method 1
1.Turn off Fiber Negotiation (SW1 Down) on both media converters. Leave all other switches UP.
2.Connect the near end device to port MM1, the LK1 LED should be lit to indicate a good fiber connections. If the LK1 LED is not lit, then check the fiber cable and the attached device.
3.Repeat step 2 for port MM2/SM2.
4.Return the media converter to the desired configuration.
Method 2:
The fiber connection can also be verified by configuring the remote media converter for loopback mode. The LEDs on both media converters should be lit. Data should pass through the local converter then over the fiber connection to the remote media converter.
Gigabit Fiber to Fiber Media Converter Module – Installation Guide
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