Perle Gigabit Fiber to Fiber Media Installation Guide
9
Troubleshooting
General
•
Ensure power is supplied to the media converter – use of the
Perle supplied power adapter is highly recommended.
•
Ensure both devices on either end of the fiber are compatible.
If using a single fiber connection, ensure that you have both
an Upstream (U) and Downstream (D) media converter.
•
Ensure all cabling is of the correct type and is in good
operating condition.
•
For dual-stranded fiber connections, ensure the RX and TX
has been reversed between the 2 media converters.
No connectivity
If unable to get full connectivity with all DIP switches in the UP
position, this procedure is recommended for troubleshooting.
Method 1
1. Turn off Fiber Negotiation (SW1 Down) on both media
converters. Set Link Mode to Standard. Leave all other
switches in the UP position.
2. Connect the near end device to port MM1, the LK1 LED on
each media converter should be lit to indicate 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 units to desired configuration.
Method 2
Each fiber connection can also be verified by configuring the
remote media converter for loopback mode. The link LEDs
between the local and remote media converter should be lit. Data
should pass through the local converter then over the fiber
connection to the remote media converter.
