Omnitron Systems Technology 10/100M2 user manual 1.5 SW5 UTP Full/Half Duplex FDX/HDX

100Mbps “100” position (factory default) forces the UTP port to operate at 100Mbps. Setting this DIP-switch to UTP 10Mbps “10” position forces the UTP port to operate at 10Mbps. Adjust the “10/100” DIP-switch to match the speed of the connecting UTP device.

When the UTP “AN/Man” DIP-switch is in the auto-negotiate “AN” position and the UTP 10/100 DIP-switch is in the “100” position, the UTP port auto-negotiates to 100Mbps or 10Mbps. When in the “10” position, the UTP port only operates at 10Mbps. Refer to the table above for a detailed explanation.

3.2.1.5SW5 - UTP Full/Half Duplex “FDX/HDX”

When the UTP “AN/Man” DIP-switch is in the manual “Man” position, the UTP Full/Half-Duplex “FDX/HDX” DIP-switch determines the duplex operation mode of the UTP port. Setting the UTP Full/Half-Duplex DIP-switch to UTP Full-Duplex “FDX” position (factory default) forces the UTP port to operate in Full-Duplex. Setting this DIP-switch to UTP Half-Duplex “HDX” forces the UTP port to operate in Half-Duplex. Adjust the UTP Half/Full-Duplex DIP-switch to match the duplex mode of the connecting UTP device.

When the UTP “AN/Man” DIP-switch is in the auto-negotiate “AN” position, and the UTP Full/Half-Duplex DIP-switch is in the Full-Duplex “FDX” position, the UTP port auto-negotiates to Full or Half-Duplex. When in the Half-Duplex “HDX” position, the UTP port functions only in Half-Duplex for the speed selected. Refer to the table on the previous page for a detailed explanation.

3.2.1.6SW6, SW7, SW8 - Link Modes

These three DIP-switches configure the link mode settings. The following table details possible Link Mode DIP-switch configurations.

				PI
SW6	SW7	SW8	Result
Left	Left	Left	Link Segment mode (LS)
Right	Left	Left	Link Propagate mode (LP)
Left	Right	Left	Remote Fault Detection mode plus Link
			Segment mode (RFD+LS)
Right	Right	Left	Remote Fault Detection mode plus Link
			Propagation mode (RFD+LP)
Left	Left	Right	Symmetrical Fault Detect mode (SFD)
Right	Left	Right	Asymmetrical LP P1 to P2 (ALP P1-P2)
Left	Right	Right	Asymmetrical LP P2 to P1 (ALP P2-P1)
Right	Right	Right	Asymmetrical RFD+LP P1 to P2

				SA
SW6	SW7	SW8	Result
Down	Down	Down	Link Segment mode (LS)
Up	Down	Down	Link Propagate mode (LP)
Down	Up	Down	Remote Fault Detection mode plus Link
			Segment mode (RFD+LS)
Up	Up	Down	Remote Fault Detection mode plus Link
			Propagation mode (RFD+LP)
Down	Down	Up	Symmetrical Fault Detect mode (SFD)
Up	Down	Up	Asymmetrical LP P1 to P2 (ALP P1-P2)
Down	Up	Up	Asymmetrical LP P2 to P1 (ALP P2-P1)
Up	Up	Up	Asymmetrical RFD+LP P1 to P2

NOTE: Connecting two converters which are set to any of the RFD modes are illegal and will cause a “deadly embrace” lockup.

NOTE: It is recommended to keep the LS setting (default) until initial configuration is complete.

For detailed information on the operation of the different Link Modes, download the application note “iConverter Link Modes” available on Omnitron’s web page:

http://www.omnitron-systems.com/downloads.php

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