Installation guide
 Perle 10/100/1000 Ethernet Extended Temperature Media Converter 
 Installation Guide
5
Auto: When enabled, the media converter will negotiate with its 
link partner to determine the most optimal parameters for this 
connection. The S-1110-XT will advertise capabilities of 10,100 
and 1000 Mbps, full and half duplex as well as pause, and remote 
fault capabilities to the link partner. 
If the copper link partner does not support Auto negotiation, the 
S-1110-XT will parallel detect to 10 or 100 Mbps and force Half 
Duplex mode as per IEEE specifications. 
Off: When the Auto Negotiation switch is set to the OFF position, 
the media converter will not negotiate the Ethernet parameters 
with the copper link partner. The parameters used by the media 
converter will be determined by the Duplex (switch 4) and Speed 
(switch 5) DIP switch settings. 
. 
Link Mode (Switch 2) 
Switch Position  Mode 
Up (default)  Standard Mode 
Down  Smart Link Pass-Through
Standard Mode: In this mode, link on the fiber and copper sides 
can be brought up and down independently of each other. A loss 
of link on either the fiber or copper port can occur without affecting 
the other connection. 
Smart Link Pass-Through In this mode, the link state on one 
connection is directly reflected through the media converter to the 
other connection. If link is lost on one of the connections, then the 
other link will be brought down by the media converter. 
If the installation has a media converter on both ends of the fiber 
link and both are set-up for Smart Link Pass-Through, then a loss 
of copper link on the far end device will propagate through both 
media converters and will result in a loss of link at the near end 
device. 










