Cabletron Systems STS16-20D manual Reset Button, System Request Button, Switched Port Analyzer

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—a connection to a shared-media segment via a Token Ring concentrator, Station mode (on SmartStack STS16-20D only via the network ports 17– 20)

—a connection to another Token Ring switch (on SmartStack STS16-20D only via network ports 17–20)

—operating at 4 Mbps or at 16 Mbps

—a connection to a dedicated-media segment, directly to a Token Ring LAN station operating in half-duplex or full-duplex mode (Port mode).

—Ports 19 and 20 on SmartStack STS16-20R can attach to a MAU/CAU RI/ RO port

The switch will automatically configure (requiring no operator action) each port to operate at the highest possible level of capability. No special crossover cables are required for Token Ring stations on dedicated-media segments or for switch-to- switch connections; the same straight-through cabling is used regardless of the type of connection. This auto-sense/auto-configure capability of the switch can be overridden by explicit console management.

Switched Port Analyzer

Any of the Token Ring ports can be configured as an analyzer port. An analyzer port is used to monitor any of the other ports in the same physical switch. The activity can then be traced by a Token-Ring network analyzer attached to the analyzer port.

Reset Button

The SmartStack STS16-20D/STS16-20R has a recessed reset button labeled RST that is located on the front panel. Pressing the reset button resets the hardware and software and clears all tables and memory, including the address tables. Pressing the reset button does not clear the values stored in nonvolatile random access memory (NVRAM).

System Request Button

This unlabeled recessed button is located on the front panel above the Reset button. Pressing the button causes the System Request Menu to appear on the console device attached to the MANAGEMENT port. Pressing the button for more than five seconds will initiate a modem download of the main image.

➽Note: The system request button should be used only at the direction of service personnel. The button is recessed to prevent accidental activation.

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