Perle Systems CM-110-XXXXX - Manual (Page 15)

Perle 10/100 Media Converter Module – Installation Guide 15
Troubleshooting
General
•
Ensure that the Media Converter Module is securely seated in the
chassis. The PWR LED should be on.
•
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 Converter.
•
Ensure all cabling is of the correct type and is in good working
order.
•
For duplex fiber connections, ensure the RX and TX has been
reversed between the two Media Converters.
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. If the Module is a CM-110, set the Auto-Config jumper (J6) to
SW so that DIP switches are being read.
2. Set the Link mode to Standard (SW2 – Down) on both Media
Converters. Leave all other switches in the Up position.
3. Connect the near end device to the copper connection. The LKC
LED indicates good copper connection. If the LKC LED is not lit,
then check the copper cable and the attached device. Repeat for
the far end Media Converter.
4. Connect the fiber cable to both Converters. The LKF LED
indicates good fiber connection. If no LKF LED then check the
fiber cabling.
5. Return converters to desired configuration.