Network Card User Manual

Perle 10/100 Media Converter Module – Installation Guide

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.