D-Link DES-815 User Manual - Duplex Mode Switch

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Overview

Duplex Mode Switch

The 10/100 Fast Ethernet Switch must be set to the proper duplex

mode for all ports.  The switch can be set to auto-detect the duplex

mode for ports 1 and 2, and for the MII connector; All other ports

must be set to either full or half duplex.

To change the duplex mode, change the Duplex Mode DIP switch

setting on the back of the 10/100 Fast Ethernet Switch.  On the

DIP switch, for ports 1, 2, and the MII connector, down is auto-

detect, up is full-duplex.  For ports 1 and 2 (the 10/100Mbps

variable speed ports), “Auto” means that the appropriate duplex

mode is set by the hub according to the capabilities of the device

connected, and “FDX” manually sets the ports to full duplex mode.

Regardless of the duplex mode setting, the speed setting of ports 1

and 2 is automatically detected.

For all other ports up is full duplex, down is half duplex, and the

switch numbers correspond with the port numbers.  Note that it is

not necessary to turn off the device when changing the duplex

mode setting.