Perle 10/100/1000 Ethernet Extended Temperature Media Converter
Installation Guide

9

Half Duplex: The Media Converter Module will be set to Half
Duplex mode on its fiber link.

Loopback Fiber-1 (Switch 7)

Switch Position Mode
Up (default) Disabled
Down Enabled
Disabled: The loopback feature is disabled. This is default
position for normal operation. The switch must be set to this
position in order for data to pass through the media converter.
Enabled: This is a test mode. All data received on the receive
(RX) fiber connection is looped back to the transmit (TX) fiber
connection. The data link will be disabled; however power to the
powered devices will be maintained. This mode will override all
other switch settings.

Installing the SFP Fiber Module

SFP models only.
1. Locate the appropriate fiber module and insert the SFP into
the opening on the front of the media converter.
2. Ensure the SFP module is properly seated. The release latch
of the SPF fiber transceiver must be in the closed (up) position
before insertion.
3. The SFP module may be inserted before or after applying
power to the media converter.
4. Proceed with cable connections.
Installing the Duplex Fiber Cable
1. Locate a 1000Base-X compliant duplex (2 strands) fiber cable
with appropriate connectors.
2. Connect the fiber cables from one media converter to the
other media converter/switch/fiber device ensuring that the RX
and TX are reversed (crossed) at the opposite end.