Cabletron Systems STS16-20R User Manual
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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.
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.
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.
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.
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).
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.
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.