Enabling TX and FX LinkLoss

In order to enable the LinkLoss features, remove the cover from the unit and place the jumpers accordingly. Follow the instructions below, referencing the diagram.

1.Make sure that there is no power going to the unit by UNPLUGGING THE POWER CORD.

2.Using a Philllips screwdriver, remove the screws on the corners of the cover.

3.Remove the cover and find the three-pin jumper blocks for TX and FX LinkLoss. Adjust the shunts on the jumpers accordingly.

4.Replace the cover and tighten the screw to secure the cover.

Refer to the following diagrams and table for jumper location and settings.

Using FiberAlert and LinkLoss

The following table provides an overview of the troubleshooting features, their functionality and the recommended settings for a pair of media converters in a typical central/main site to remote site application:

LinkLoss/FiberALert Compared

Feature	Fault Location	Disabled LEDs	Enable At:
FX LinkLoss	Fiber	Twisted Pair	Main Site Only
TX LinkLoss	Twisted Pair	Fiber	Remote Site Only
FiberAlert	Fiber	Fiber	Remote Site Only

This will ensure that any faults, no matter where they occur, can be detected by a administrator located at the central site.

Enabling FiberAlert

Configure FiberAlert on McPC 100Mbps by adjusting a two-position switch, labeled FA, on the faceplate next to the fiber connectors. Enable this feature by moving the switch to the up ON position. Disable by moving the switch to the down OFF position (default).