Perle Systems c-1111-xxxxx Auto Negotiation copper Switch, Link Mode Switch, Switch Position Mode

Auto Negotiation copper (Switch 1)

Switch Position	Mode
Up (default)	Auto
Down	Off

Note: Auto negotiation should only be turned off, if the copper link partner does not support Auto Negotiation and fixed settings are required by the copper link partner.

Auto: When enabled, the Media Converter Module will negotiate with its link partner to determine the most optimal parameters for this connection. The C-1110 and CM-1110 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 C- 1110 and CM-1110 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 Module will not negotiate the Ethernet parameters with the copper link partner. The parameters used by the Media Converter Module will be determined by the Duplex (switch 4) and Speed (switch 5) DIP switch settings.

Link Mode (Switch 2)

Switch Position	Mode
Up (default)	Smart Link Pass-Through Mode
Down	Standard Mode

Smart Link Pass-Through:In this mode, the link state on one connection is directly reflected through the Media Converter Module 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 Module.

With Media Converters on both ends of the fiber link and both setup for Link Pass-Through, a loss of copper link on the far end device will propagate through both Converters and will result in a

6 Perle 10/100/1000 Media Converter Module – Instal lation Guide