Cabletron Systems STS16-20D, STS16-20R manual Token Ring Port Operation Modes

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Token Ring Port Operation Modes

Each Token Ring port may operate in one of the following modes:

•Half-duplex concentrator port

The port behaves like an active MAU port for classical Token Ring. Connects to a single station in half-duplex mode. This is also known as Token Passing (TKP) port mode. Compatible with older adapters.

•Half-duplex station emulation

The port is connected to a port on a MAU. Connects to a classical Token Ring segment with multiple stations. This is also known as Token Passing (TKP) station mode.

•Full-duplex concentrator port

Connects to a single station or to another switch in full-duplex mode. This is also known as Transmit Immediate (TXI) port mode.

•Full-duplex station emulation

Connects to another Token Ring switch. This is also known as Transmit Immediate (TXI) station mode.

•RI/RO-like connection

Allows connection of the RI/RO port from a MAU or CAU directly to the switch (only on SmartStack STS16-20R, ports 19 and 20).

The mode of operation can be configured manually or sensed automatically. Note that for SmartStack STS16-20R this is with the exception of RI/RO, when equipment is connected to the port. The media speed (4 or 16 Mbps) can also be manually configured or automatically sensed in all port modes.

SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Switch Overview