Fast Ethernet Media Converter – Installation Guide
• Ensure the module is correctly seated to the backplane in the
MCR Chassis. The PWR LED should be on solid.
• 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.
If unable to get full connectivity with all DIP switches in the UP
position, these methods are recommended for troubleshooting.
1. If the Module is a CM-100, set the Auto-Config jumper (J6)
to SW so that 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 Media Converter to the desired configuration.