Cabletron Systems STS16-20R - Manual (Page 40)

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