IMC Networks McPC 100 Mbps - Manual (Page 8)

5
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).